Meteorology (Weather)/Questions Answered by Expert Donald Rosenfeld
| Subject | Date Asked |
| 1999 bridgecreek,OK tornado | 2/4/2012 |
| Q: donald,the tornado that hit bridgecreek ok in 1999 had a world record wind speed of 318 mph.it also ... A: The wind speed recorded by the mobile Doppler radar was taken at above ground level which then ... | |
| barometric pressure | 2/3/2012 |
| Q: Is the difference between actual and corrected to sea level pressure always going to be the same for ... A: A very good question! I'd say that almost always for cases where the sea level height is within a ... | |
| BP Oil Spill and Florida Precipitation | 2/3/2012 |
| Q: I live in North Central Florida on a lake and have kept rainfall data here for 25 years. Since April ... A: I'm sure that the oil spill caused some effects on weather in the Gulf area; however, the draught in ... | |
| 2012 winter weather | 1/30/2012 |
| Q: I live in Toledo, OH and so far this winter has been very unusual. I was wondering in your opinion, ... A: The second half of the winter will be colder and there will be some snow events. Overall though, the ... | |
| Frost on Car Windshields | 1/26/2012 |
| Q: Mr. Rosenfeld, if the night temperature is approximately 22 degrees Farenheit, and assuming little ... A: My answer is a guess. When the person left the car, and the engine cooled down for an hour, and ... | |
| Snow | 1/25/2012 |
| Q: Is it likely we will get snow in St. Louis this winter? A: Looking over this winter it seems that you've received about 4 inches so far. In that the month of ... | |
| air mass movement | 1/19/2012 |
| Q: which would modify quicker, an arctic air mass moving over the gulf of Mexico in winter or a ... A: Depending upon how you define the word "modify", the answer would be: arctic air mass moving over ... | |
| Disrupting tornados | 1/18/2012 |
| Q: So...I have been wondering, since I was a little kid (about 30 years now) what would happen if you ... A: If you threw TNT into the side of a tornado and the TNT exploded it would disrupt the lower wind ... | |
| different kind of rainbow | 1/17/2012 |
| Q: I was flying into Chicago a few years ago in January, not sure of the altitude. Our airspace was ... A: Sounds like a "Glory": http://tinyurl.com/opticalGlory ... | |
| Severe Weather | 1/12/2012 |
| Q: When severe weather discussions talk about banding and thunderstorms they mention if "convective ... A: The forecasting of severe weather requires the analysis of many variables which must come together ... | |
| fire rainbow photos | 1/9/2012 |
| Q: I saw what I believe to be fire rainbows..after much googling. They are under exposed 2-4 stops ... A: I agree with you that your picture is of a "fire rainbow". Here are some more photos and an ... | |
| squall line tornadoes? | 1/5/2012 |
| Q: DONALD,HOW DO SQUALL LINES PRODUCE TORNADOES? I AM QUOTING A STATEMENT MADE ABOUT THE 1974 SUPER OUT ... A: Tornadoes are always associated with thunderstorms; squall lines are typically a line of ... | |
| Job Requirements | 1/4/2012 |
| Q: I am currently a junior in college majoring in biology. I originally was enrolled as a mechanical ... A: You do not have to be a programmer to be a meteorologist. If you are close to your degree in ... | |
| Frost | 1/4/2012 |
| Q: How does frost form on top of a house when the temperature is above 32 degrees? I live in the ... A: Frost can't form if the temperature OF THE OBJECT is above 32. So, if the top of the roof were 32 or ... | |
| presure variations | 12/30/2011 |
| Q: the pressure difference isn't usually as extreme as the day I cited, but there is definitely a ... A: Wooded areas are cooler which means less differential heating which means less up-drafts which means ... | |
| cyclonic storms | 12/29/2011 |
| Q: I was a mariner and we had a thumb rule (which I have forgotten) to predict the direction in which a ... A: You're thinking of the Buys Ballot Law In the northern hemisphere, if you face the wind the storm ... | |
| pressure variations | 12/28/2011 |
| Q: I've noticed that the barometric pressure is usually much lower near my sister's house, which has a ... A: I would suspect that one of the barometers you are using is out of adjustment if the readings are ... | |
| Insolation data | 12/27/2011 |
| Q: I hope you are doing good. Have you got any idea that how can i know the global areas receiving ... A: This should give you the info: ... | |
| wind confusion! | 12/24/2011 |
| Q: donald,i live on the mobile,al bay.it goes out to the gulf of mexico.i'm confused though, the ... A: If the land temperatures are hotter than the water temperatures, then a south wind would bring ... | |
| Measuring Hours Below Freezing | 12/16/2011 |
| Q: Is there a reasonably priced gauge/device for the home gardener that can track number of hours ... A: You have two choices: A thermograph: http://www.novalynx.com/210-4110.html ... | |
| tornadoes | 12/15/2011 |
| Q: If tornadoes are just rotating columns of wind, how are they so destructive? A: Well, they are rotating columns of wind and they are destructive because the wind speed in the wall ... | |
| finding the three letter weather code for any city in any location across the U.S. | 12/15/2011 |
| Q: How can you find the three letter weather code for any city in any location across the U.S.? A: Take a look at: http://www.bayareascene.net/airportcodes.html ... | |
| front altitudes | 12/11/2011 |
| Q: Do pressure fronts tend to form at certain altitudes more than others? Last fall & winter I recall ... A: Fronts generally are in touch with the surface and have a vertical structure that rises into the ... | |
| Weather in Italy | 12/10/2011 |
| Q: Greetings! Been looking all over the internet and canīt seem to get a concise answer so here ... A: I think these may help: http://www.guidedolomiti.com/eng/location_-_climate_geology.html ... | |
| pressure fronts | 12/5/2011 |
| Q: Do the points on a front line indicate the direction the front is moving? (For example, on a north ... A: You are correct, the half moons and/or triangles face in the direction a front is moving; the ... | |
| very dark nights | 12/4/2011 |
| Q: We live on the gulf coast in the Houston/Galveston area of Texas. Not often but there are times when ... A: There are three possibilities that come to mind: 1. A decrease in light pollution: ... | |
| Science | 12/1/2011 |
| Q: Since, Quitman, Georgia is two hours from the Atlantic Ocean or Gulf of Mexico, how is the weather ... A: Rainfall is enhanced by being so close to the warm Atlantic and very warm Gulf of Mexico; so, you'd ... | |
| supercells and occluded fronts | 11/28/2011 |
| Q: i dont know what i would have done with out that info. now i just have a question about ... A: Looking at the link you supplied I do not see an orographic map; orographic has topographical ... | |
| Tides | 11/27/2011 |
| Q: Donald, I live on Cape Cod and today (November 26) I went down to the bay beach at the time of high ... A: The new moon was a factor but the only enhancement may have been the Bermuda high pressure system ... | |
| Calculus in Meteorology | 11/25/2011 |
| Q: I'm doing a project for my Calculus 1 class and I was wondering exactly how is calculus used in ... A: Calculus is used by computer models that predict future weather patterns; specifically, calculus is ... | |
| Weather | 11/22/2011 |
| Q: Why is the sky blue? A: What a good question! The sky is blue because of scattering (when hitting the molecules of the ... | |
| thickness of an air mass | 11/19/2011 |
| Q: When an 'Alberta clipper' flows down from Western Canada (east of the Continental Divide) into the ... A: First, an Alberta Clipper is steered by a jet stream: ... | |
| air pressure and temperature | 11/17/2011 |
| Q: I am a middle school science teacher, and need to understand this concept: I understand that when ... A: "I understand that when air heats up, it moves faster, thus expanding and becoming less dense. Is ... | |
| US weather | 11/12/2011 |
| Q: I am looking for any us cities or areas with summer temps in the 80s and 90s and winter temps in ... A: I think San Diego California would fit the bill. Take a look at this: ... | |
| why is snow slippery? | 11/11/2011 |
| Q: mr rosenfeld, what makes snow slippery? A: Ice and snow are slippery because of its low coefficient of friction and the melting point. When you ... | |
| Past Temperatures | 11/8/2011 |
| Q: A: See if this does the trick: http://www.nws.noaa.gov/climate/ What you do is click on a city near ... | |
| St. Augustine FL weather | 11/6/2011 |
| Q: We are wondering why St Augustine, FL, was so comfortable in late October with 68 degrees, 85% ... A: The jet stream was situated in such a way (dipping down into the mid US) thus keeping cold air to ... | |
| Wind speed near the tropopause | 11/2/2011 |
| Q: I know winds can be in excess of 100 kts in the tropopause...but what is the max wind speed ... A: As you can see, the tropopause is above the troposphere which is where the high speed jet streams ... | |
| thermometer accuracy | 10/31/2011 |
| Q: Overall,are mercury thermometers the most accurate when weather observing compared to digital? What ... A: Generally speaking a mercury thermometer is considered the best way to measure temperature; however, ... | |
| weather inquiry | 10/26/2011 |
| Q: I have a question regarding sunshine percentages. I have seen the state sunshine percentages ... A: The cloud cover is the percentage of total and partial cloudiness for each hour of an average day in ... | |
| climograph comparison | 10/25/2011 |
| Q: Looking at climograph comparison between L.A. California & Wilmington, North Carolina. Both coastal, ... A: Three reasons; first, the ocean off Wilmington is influenced by the warm gulf stream and cold ... | |
| The dew point | 10/22/2011 |
| Q: I moved to Illinois from New York in 1996 and started getting sinus infections. The doctor told me ... A: The amount of dew is about the same in New York and Illinois; also, the amount of dew is not a ... | |
| strange weather map | 10/17/2011 |
| Q: im takeing a course with a meteorology module that does its best to teach the entierty of ... A: Visibility data is only available for first order stations such, as an example, MONTREAL/MIRABEL ... | |
| Is it possible to "smell" weather? | 10/13/2011 |
| Q: I'm writing this to know if its normal for humans to predict the rain, or stormy weather by just ... A: First, some people can smell changes of humidity and or changes of the smell associated with wind ... | |
| strange weather map | 10/11/2011 |
| Q: im takeing a course with a meteorology module that does its best to teach the entierty of ... A: Well, these may help but, if not, then you will need the hourly observations from an archive to do ... | |
| strange weather map | 10/10/2011 |
| Q: im takeing a course with a meteorology module that does its best to teach the entierty of ... A: Looking at: http://www.amaruk.com/ecampus/cag/materials/BCWx.png I can see that it would be ... | |
| LOW PRESURE SYSTEM | 10/3/2011 |
| Q: IS IT POSSIBLE FOR A LOW PRESSURE SYSTEM TO FORM IN THE MIDDLE OF A HIGH PRESSURE SYSTEM, THEN SNOW ... A: Take a look at the map for the date on: ... | |
| LOW PRESURE SYSTEM | 10/2/2011 |
| Q: IS IT POSSIBLE FOR A LOW PRESSURE SYSTEM TO FORM IN THE MIDDLE OF A HIGH PRESSURE SYSTEM, THEN SNOW ... A: Looking at the 1 am E.S.T. sfc map for the 25th, I see no high pressure system in that area: ... | |
| upside down rainbow on sunny day | 9/22/2011 |
| Q: Last Saturday on a sunny day we looked up and saw a cloud that looked like someone had taken a ... A: Looks like you saw a Circumzenithal Arc which probably was as a result of nature and your Mother and ... | |
| Seasonal Affective Disorder | 9/19/2011 |
| Q: I often experience a feeling of terror/dread right before and at sunset. It happens when I'm not ... A: Sounds like you have Seasonal Affective Disorder (SAD which could cause your symptoms. Take a look ... | |
| earthquakes and barometric presssures | 9/19/2011 |
| Q: Is there any correlation between a sudden rise in barometric pressure and earthquakes? A: The short answer is that lower barometric pressure is sometimes associated with earthquakes. Take ... | |
| Hurricane Katrina Question | 9/15/2011 |
| Q: I understand that Hurricane Katrina was formed from a group of thunderstorms over the Bahamas, and ... A: If a hurricane moves from an area of hotter water to an area of cooler water, all other variables ... | |
| after a rainstorm | 9/13/2011 |
| Q: What could explain why, if 2 locations less than 5 miles apart both receive about 15 minutes of rain ... A: If the ground was warmer in the area it would cause faster evaporation or if there was a breeze very ... | |
| Tornado watches | 9/8/2011 |
| Q: What is the maxium amount of time that a tornado watch could be issued for? Would it be possible for ... A: Typically they are in effect for a few hours but could be for 12 or so hours. I've never heard of ... | |
| Brighter Sun | 9/7/2011 |
| Q: I live in Iowa and lately I've been thinking the sun seems a lot brighter than usual. I realize the ... A: Many people, including me, think that the atmosphere has been cleaner thus making the sun ... | |
| Pressure Gradient wind speed | 8/26/2011 |
| Q: hope this finds you well! Im hoping you can help me figure out the following: Is it possible to ... A: It is possible if you can predict the isobar pattern at your location; with the depiction of the ... | |
| Ground fog | 8/26/2011 |
| Q: If the sky is mostly clear when you stand outside and look straight up, but you see solid dense ... A: What you are describing is "ground fog"; the moisture at ground level and above for a hundred feet ... | |
| High pressure | 8/22/2011 |
| Q: There is currently a large high over Texas, helping to cause extreme drought, what would make it ... A: Large weather systems are generally moved by upper air winds: ... | |
| Winter 2011-2012 | 8/16/2011 |
| Q: Plz reply. A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Follow-up question re phobias and weather archives. | 8/11/2011 |
| Q: Mr.Rosenfeld, Thankyou for all of the weather archive data that you gave me. It was very ... A: Questioner: Nick Subject: weather archives. Date Asked: 2011-08-03 00:35:30 Date Answered: ... | |
| temperature reading sites | 8/11/2011 |
| Q: Where can I find the precise location of where temperature readings are taken in a given town? A: Temperature readings taken by NOAA are almost always taken at airports; so, assuming that is the ... | |
| weather archives. | 8/3/2011 |
| Q: Mr. rosenfeld, my interest in the weather for many years has caused me to develop a weather ... A: An excellent question!! Phobias and compulsive behavior associated with weather can be a problem ... | |
| micro climates | 8/1/2011 |
| Q: I live in a suburban area that is dotted with lots of little artificial "lakes" that were dug out to ... A: The topography certainly can affect weather patterns such as temperature; warmer temperatures are ... | |
| cloud ceiling/roof | 7/31/2011 |
| Q: Okay, I'm a mountaineer in western washington. Often will it be raining in town with a cloud ceiling ... A: There is no "break-out" of cloud formula; however, if you learn to use a lapse-rate chart it may ... | |
| Weather patterns | 7/26/2011 |
| Q: Surface weather patterns usually move from west to east across the lower 48 states. Why do ... A: Hurricanes generally form in the tropical Atlantic which is located further to the south than the ... | |
| jet stream | 7/26/2011 |
| Q: I remember most of the winter the jet stream was moving at very fast speeds, whereas now, in summer, ... A: On average, winter has faster jet streams then spring, summer or the fall. Why? Because ... | |
| forecast for next week in Mexico | 7/20/2011 |
| Q: I recently took a vacation where it rained every day, and I'm trying not to repeat the experience ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| clear ring/circle around the moon | 7/14/2011 |
| Q: Good day, I live in SA, last night aroun 9pm I saw this clear ring/circle around the moon (a big ... A: Well, it sounds like a halo around the moon caused by the moon light passing through the cirrus ... | |
| barometric pressure | 7/6/2011 |
| Q: Does the barometric pressure usually start dropping in late afternoon as it gets closer and closer ... A: There is a diurnal pressure change: http://amsglossary.allenpress.com/glossary/search?id=diurnal1 ... | |
| Cloud burst | 7/4/2011 |
| Q: Sir, I just want to ask that what is the reason of cloud burst and y these usually occurs in hilly ... A: Cloud bursts: http://amsglossary.allenpress.com/glossary/search?id=cloudburst1 are when a ... | |
| barometric pressure | 6/24/2011 |
| Q: I am a chronic migraineur with several triggers, one of them the weather. From the literature that I ... A: "I was wondering if you could describe the types of weather conditions that are involved with low ... | |
| which was bigger and stronger | 6/23/2011 |
| Q: Donald,just wanted to ask you about 2 bad tornadoes.Which was bigger and/or stronger the joplin ... A: Looks like the Joplin is the winner: http://www.noaanews.noaa.gov/2011_tornado_information.html ... | |
| Thunder Storms | 6/23/2011 |
| Q: Is there any difference between the rain water and air when an electric storm is pretty much ... A: When a storm is directly overhead the humidity is higher and that can make a change in how the air ... | |
| wx forecasts | 6/20/2011 |
| Q: If forecast for tomorrow is Chance of heavy winds and large hail. 40% chance of rain, then, ... A: A very low probability of a hail strike on that car in that the hail area will be very small in the ... | |
| atmospheric instability | 6/12/2011 |
| Q: Is there a formula that indicates the point at which an atmosphere (described by relevant variables ... A: Take a look at: http://www.crh.noaa.gov/lmk/soo/docu/indices.php ... | |
| warmer Atlantic Ocean | 6/11/2011 |
| Q: Did the Atlantic enter its warmer-than-usual phase sometime around spring 2009 or shortly before? (I ... A: Here is a link to show the North Atlantic ocean temps up to May of 2011: ... | |
| Radar Phenomenon | 6/9/2011 |
| Q: On Thursday, June 9th at about 2am, I saw a radar event in Indiana and I was hoping I could get a ... A: I could not get the radar animation to work correctly so I've enclosed an animated radar gif for ... | |
| wind question | 6/8/2011 |
| Q: i would like to know how windy it is there as compared to LA. i would also like to know your ... A: please explain what you mean by perpendicular versus parrallel to the valley as we are in the ... | |
| Tornado anomaly? | 6/8/2011 |
| Q: In the summer of 2000, (maybe 1999) I was in Seagoville, texas just outside of dallas. I was on a ... A: First, as far as I know, there is no such thing as an "inverted" tornado. There are tornadoes that ... | |
| wind question | 6/7/2011 |
| Q: i would like to know how windy it is there as compared to LA. i would also like to know your ... A: Looking at: http://www.city-data.com/city/Winters-California.html ... | |
| raindrop distribution in clouds | 5/31/2011 |
| Q: mr. rosenfeld, are there the same amounts of raindrops in the top , middle ,and bottom of every ... A: Excellent question! First, the very high clouds like lenticulus and cirrus don't have rain drops in ... | |
| running from powerful-long track tornadoes | 5/30/2011 |
| Q: I realize that meteorologist have certain moral obligations to the public so if you do not want to ... A: Officially, from NOAA, it would be dangerous to try to out-run a tornado in a car. Personally, I ... | |
| storms | 5/26/2011 |
| Q: i would like to know the impacts storms(hurricanes,cyclones etc) have on the area near the Gulf of ... A: Tropical cyclones, as you know, bring extreme winds and rainfall along with storm surges to the Gulf ... | |
| cliimate change effect on weather | 5/25/2011 |
| Q: Rosenfeld, My name is JB Cohen. I am in 8th grade and I have to do a science report regarding the ... A: 1. Do you think the number of storms will increase in the future due to global warming? Why? Well, ... | |
| Storm Strength | 5/25/2011 |
| Q: Why do storm systems weaken as the sun sets? We have some pretty severe systems to our west and they ... A: A very good question! The sunlight heats the ground which in turn creates thermal updrafts with the ... | |
| Wedding Weather | 5/19/2011 |
| Q: My wedding is on September 9th 2011 - I was wondering what the weather would be. Zip code, 21811. ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| high speed winds at very high altitudes | 5/12/2011 |
| Q: I am a science teacher. Recently my students were looking at variations in the atmosphere by using ... A: Hope the following help: http://www.weatheranswer.com/public/Jet_Stream_by_Krista_Feierabend%20.pdf ... | |
| Weather article for Time Out Dubai Magazine | 5/12/2011 |
| Q: Im looking to interview a couple of meteorologists who specialize in the Middle East as we are ... A: I'd suggest trying these phone numbers and the email address: ... | |
| high speed winds at very high altitudes | 5/11/2011 |
| Q: I am a science teacher. Recently my students were looking at variations in the atmosphere by using ... A: The peak wind speed is at around 13 km. The cause starts with temperature differences by elevation ... | |
| cities in US with stable barometric pressure | 5/2/2011 |
| Q: There must be a list somewhere in which cities in the U.S. are rank ordered in terms of their degree ... A: See if these help: ... | |
| Before and After Effects on Rainfall | 4/29/2011 |
| Q: After a rainfall passes a city, will the temperature and humidity increase or decrease? Also, if ... A: Some rainfall can be associated with downdrafts from cumulonimbus clouds which bring, on a localized ... | |
| Before and After Effects on Rainfall | 4/28/2011 |
| Q: After a rainfall passes a city, will the temperature and humidity increase or decrease? Also, if ... A: After a rain producing weather system leaves an area the humidity in that area will be higher than ... | |
| Heat Haze | 4/21/2011 |
| Q: I am a photographer that is very annoyed at having photos ruined by heat haze, and I was wondering ... A: On a cool or hot day you can get heat haze as a clear sky with bright sunlight can heat up the earth ... | |
| Weather | 4/21/2011 |
| Q: what is weather how do you learn about it A: Weather is all the components of the atmosphere which create the day to day clouds, precipitation, ... | |
| meteorology | 4/10/2011 |
| Q: Sir,What are the divisions and subdivisions of meteorology A: Here is some info on the Koppen Climate Classification: ... | |
| Florida September 2011 Weather | 4/7/2011 |
| Q: I was wondering if you could please help me determine what the weather will be like for my wedding ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Hurricanes on a planet with no land question | 4/5/2011 |
| Q: I was wondering something about what weather might be like on an Earth-like planet with no ... A: There would still be upper air steering currents that would move weather systems around; systems ... | |
| Kicker S/w | 4/3/2011 |
| Q: A kicker shortwave keeps the system ahead of it moving. But why does it not phase with the system ... A: Well, my thoughts are: an upper air short wave trough may be to the west of a surface low pressure ... | |
| wheather condition in adavance | 4/3/2011 |
| Q: is there any cyclone in may 2011 A: Well, it's too early to make an accurate prediction but you should look at: ... | |
| prevailing winds and airmass direction | 4/3/2011 |
| Q: I've been told that the air mass in canada "north of the 52 parallel" moves east to west. I find ... A: Cold air-masses in Canada typically move from north or northwest toward a southerly direction. ... | |
| 3 or 4 types of fronts? | 3/27/2011 |
| Q: Mr Rosenfeld. I've been going about books and the Net, trying to understand the way fronts work. I ... A: The statement: "However, when the upper-level winds change direction to blow along the front, ... | |
| 3 or 4 types of fronts? | 3/26/2011 |
| Q: Mr Rosenfeld. I've been going about books and the Net, trying to understand the way fronts work. I ... A: There are Cold fronts: http://keithrogershome.com/fig54ColdFront.gif Warm fronts: ... | |
| Clouds | 3/24/2011 |
| Q: 1st: how do clouds form in the sky. ANSWER: Hi Maribel A cloud forms when some air is forced to a ... A: Thicker clouds tend to be the ones that have rain associated; thicker clouds allow less light from ... | |
| Clouds | 3/23/2011 |
| Q: 1st: how do clouds form in the sky. A: A cloud forms when some air is forced to a higher level of the atmosphere which then results in ... | |
| thunderstorms | 3/22/2011 |
| Q: How do thunderstorms form ? Why do you need to avoid them. A: Thunderstorms form from air being forced to rise due to thermal updrafts or frontal boundaries ... | |
| RAIN/SNOW Measure Declaration | 3/10/2011 |
| Q: I understand there are scientific standard and collector for measring but please advise why when ... A: Different countries, organizations, weather bureaus have different customs as to how to report ... | |
| hurricanes | 3/1/2011 |
| Q: i'm a 3rd grader doing research and have a questions about hurricanes. what cawses hurricanes and ... A: Very good questions!! Hurricanes are caused by warm ocean temperatures, light winds over the area ... | |
| collecting weather data | 2/28/2011 |
| Q: I am a technology resource teacher in Henrico County Public Schools, Va. I have a group of 4th ... A: Question # 1: It just means that this December was much colder than other below normal Decembers. ... | |
| jet stream vs wind shear in relation to tornado | 2/28/2011 |
| Q: Donald does the jet stream push the tornado or" are there other winds" pushing the tornado Also what ... A: There are other winds and forces; a low level jet will move a super cell cluster but a high level ... | |
| radiation frost | 2/26/2011 |
| Q: How does relative humidity cause radiation frost and how does dew point cause radiation frost. A: Relative humidity and dew point are measures pertaining to moisture but neither causes radiation ... | |
| Changes in Weather | 2/22/2011 |
| Q: How is that the weather switches from 70 degree weather to 20 degree weather in a day and does that ... A: The temperature very rarely falls 50 degrees within a 24 hour period but it does occasionally ... | |
| cloud burst | 2/22/2011 |
| Q: i just want to know that what is cloud burst and why it usually takes place on hilly areas. Thank ... A: A cloudburst is a sudden intense (heavy) rain event of short duration. Typically the duration would ... | |
| How is the atmosphere warmed? | 2/19/2011 |
| Q: I am a student in 3rd grade learning about the earth. My book and my teacher say that the air in the ... A: You and your mother and father are all correct! Any "matter": ... | |
| wind | 2/19/2011 |
| Q: I believe wind is a movement of air from an area of high pressure, to an area of low pressure. Wind ... A: One way a wind travels is from high to low pressure but there are other ways as well: ... | |
| weight of snow. | 2/14/2011 |
| Q: My 4th grade STEM students want to find out the weight of snow needed to fill our school gymnasium. ... A: Take a look at: "Ken Hellevang, from the University of North Dakota says: "The weight of snow ... | |
| clouds | 2/10/2011 |
| Q: I Was looking at the sky on a really cold morning(about 12 degrees f.) And noticed white clouds in ... A: The clouds you probably saw were cirrus: ... | |
| windy after tornado | 2/8/2011 |
| Q: Donald,how come after a bad tornado has passed ,..it's so windy i've looked at alot of videos and ... A: It probably is due to the strong rear-flank downdraft winds: ... | |
| a wierd blue flash | 2/7/2011 |
| Q: what causes a blue flash that encompasses everything in sight, yet is not blinding, and isn't ... A: My guess would be an electric line or transformer short circuit that was just below the horizon: ... | |
| Barometric headaches | 2/7/2011 |
| Q: I know I am a sufferer of barometric pressure headaches but I don't know how to chart and measure ... A: If you tell me which city you live in I can send you a link to watch the atmospheric pressure and ... | |
| weather and seasons | 2/7/2011 |
| Q: Sir,do seasons affect the weather? A: Seasons Do effect the weather! As examples, winter is colder (in the northern hemisphere) and the ... | |
| Snow totals | 2/4/2011 |
| Q: can you tell me the snow amount per day for Phila PA in jan 2011 A: 000 CXUS51 KPHI 022028 CF6PHL PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) ... | |
| cloudless snowfall | 2/3/2011 |
| Q: It's 8:00am, 15°F, sunny and calm. There's not a cloud in the sky and a light, sparkling, snow is ... A: It could be snow blown from a roof, passing truck, mountain top or......from a cloud that passed out ... | |
| clouds | 2/2/2011 |
| Q: what kind was out yesterday in Jersey City? A: Looking at satellite images from yesterday: ... | |
| high pressure surface winds | 1/28/2011 |
| Q: I live in S. Florida and when a hurricane is forecast to pass thru my area I can fairly accurately ... A: If the high passes to your west the winds will have a northerly component. If it passes to your east ... | |
| Gulf Stream vs Weather patterns | 1/27/2011 |
| Q: I would like your opinion on a theory I heard not long after the major oil spill in the Gulf of ... A: What would probably happen from an oil spill is that it would make the Gulf water warmer thus ... | |
| weather patterns across the US | 1/27/2011 |
| Q: My niece wants to know,,,,,how come when California has a big rainstorm, it makes it to the east ... A: If a rainstorm that first hits California, in the form of a low pressure area, then moves through ... | |
| ratio of rain to snow | 1/25/2011 |
| Q: For purposes of accumulation is there a ratio of rain to snow? For example if it snows 1 inch does ... A: Generally speaking, 1" of rainfall would equal 10" of snow. But...., the colder the surface ... | |
| Moon phases and weather patterns | 1/21/2011 |
| Q: I have been told people can determine good weather around the time of full moons. Would this be ... A: I don't believe so. I took a look at moon / weather proverbs and I don't find any thing conclusive: ... | |
| tornado strength | 1/21/2011 |
| Q: i've heard there is a law i believe called angular momentum....having to do with rotational spin in ... A: Another excellent question! I doubt that the partial vacuum in a tornado would be enough to raise a ... | |
| Storm Patterns | 1/21/2011 |
| Q: If a storm were to occur on one specific location and then go eastwards to the next location, could ... A: Well, if it is a low pressure area of large size it can return if the jet stream is making a loop ... | |
| Snow Storms. | 1/19/2011 |
| Q: Ga and so far we have gotten two Major snow events that the snow has accumulated. I love the snow ... A: A La Nina pattern continues which will mean more below normal temperatures for the southeast along ... | |
| Effects of greater amounts of water vapor | 1/17/2011 |
| Q: It has been an interesting year weather-wise for far all over the world. Are the events we are ... A: Extreme temperatures are associated with more intense storms which could lead to increased ... | |
| wind | 1/13/2011 |
| Q: I am trying to explain how wind is generated to my 5 yr. old, and am having trouble bringing it to ... A: Wind is cause by pressure gradients: ... | |
| tornado movement | 1/12/2011 |
| Q: Donald,could you please tell me"what type of wind moves a supercell tornado?....the tornado has to ... A: Actually, the tornado is attached to part of the cloud above it, the cloud being a cumulonimbus ... | |
| Winter sunshine & seasons | 1/9/2011 |
| Q: My kindergarten class is studying the weather. We were outside on a very sunny day. One student ... A: I didn't know a kindergartner could ask such a sophisticated question!! Must be the good teaching ... | |
| past weather conditions | 1/6/2011 |
| Q: I am trying to find the temperature in Kingston NY for the early morning hours of October 22, 2010. ... A: On Friday the 22nd, the temperature descended from 34F at 12:01 am to around 31 F at 6 am. ... | |
| tornado | 1/5/2011 |
| Q: hello i was wonering if it is hard to have a tornado in a suburb and if they are what are the ... A: Tornadoes can occur anywhere. Over large lakes and the ocean they are called "waterspouts". ... | |
| Hygrometers/Humidity Readings | 1/2/2011 |
| Q: Was wondering about the accuracy of hygrometer/humidity readings. I live in Roanoke, VA in the ... A: It is very possible and even probable that humidity levels in a neighborhood could vary greatly. ... | |
| Past snowfall in philadelphia | 1/1/2011 |
| Q: Is there a way to find out the days it snowed w/accumilation in the Philadelphia PA area for years ... A: This will give you what you need: http://www.ncdc.noaa.gov/snow-and-ice/dly-data.php Even though ... | |
| NOAA / NWS Lead Forecaster | 12/30/2010 |
| Q: I realize you don't work for the National Weather Service, but you may have in the past or know ... A: Take a look at: ... | |
| Hail stones and Wall clouds | 12/21/2010 |
| Q: Can hail stones be produced by wall clouds? A: Well, "wall" clouds: http://marcvaldez.blogspot.com/i000766_big.jpg ... | |
| Climate temperature change - 10 year | 12/20/2010 |
| Q: What is the average temperature increase in the past 10 years? A: The ten year temperature change looks to be about plus one degree Fahrenheit. The following links ... | |
| cloud seeding | 12/16/2010 |
| Q: What is your view about cloud seeding? Is it desirable? What is the long-term effect of cloud ... A: Cloud seeding works: ... | |
| Tornado formation | 12/12/2010 |
| Q: Can you please tell me what makes a tornado grow i've seen them only on videos, but as they appear ... A: An excellent question! Tornadoes occur due to severe thunderstorms developing a strong up and then ... | |
| Understanding the 'feels like' temperature | 12/11/2010 |
| Q: I have done some reading and understand this is windchill that does not actually change the ... A: Windchill temperature is a measure of what the living thing would feel if it had nerves that felt ... | |
| Lake effect snow | 12/9/2010 |
| Q: We live right next to Lake Erie in NE Ohio (we can see the lake from our driveway). I've noticed ... A: The distribution pattern is dependent upon several variables but I would say the factor affecting ... | |
| winter outlook | 11/29/2010 |
| Q: I'm taking a ski trip from mid December to the first seven days of Jan to Vermont, the Bolton valley ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Purple Sky | 11/26/2010 |
| Q: One Time I saw the sky turn Purple. What does a Purple Sky mean? I have heard a Green Sky means a ... A: I've always heard that a green sky indicates hail which is usually associated with cumulonimbus ... | |
| Hurricanes | 11/25/2010 |
| Q: Jamaica is surrounded by deep ocean waters, while Grand Bahamas Island is surrounded by shallow ... A: Shallow waters produce the greater storm surges. Shallow water allows for a greater focus and ... | |
| High and low tides | 11/23/2010 |
| Q: I am a manager of a provincial park (Parlee Beach) in NB Canada. We are preparing for an annual ... A: Low pressure areas can have a big impact on a high tide in that the waves associated with storm ... | |
| Longwave Patterns | 11/23/2010 |
| Q: I hear a lot about the polar vortex and the role it plays in Eastern US snowstorms. For instance, ... A: Eastern US snow storms are totally dependent on the jet stream, short waves and vorticity maxes with ... | |
| blue stripe in clouds over san francisco | 11/20/2010 |
| Q: a little earlier today i saw a very long stripe of blue sky through the clouds here in san ... A: First, these "stripes" are man made. Second, they are not normal contrails. Third, I've never seen ... | |
| fronts | 11/17/2010 |
| Q: compare the type and location of precipitation associated with a cold front with those associated ... A: With cold fronts, the precipitation is normally in front of the front. Precip type is either showers ... | |
| weather data - recent snow depth reports | 11/9/2010 |
| Q: I'm looking - unsuccessfully - for real-time (or close to it) date about snow depth for cities of ... A: See if these links help: ... | |
| Temperate climate | 11/8/2010 |
| Q: Where in the rural U.S. could I enjoy all 4 seasons, low humidity, & summer temps in the high 70's - ... A: Looks like you want normal seasons with low humidity (rules out coastal locations) and summer day ... | |
| Weather Question | 11/7/2010 |
| Q: Where in the rural U.S. could I enjoy all 4 seasons, low humidity, & summer temps in the high 70's - ... A: How do you define "enjoy"? For instance, since you refer to summer, fall, winter and spring are ... | |
| Global Warming - Yes or No ? | 10/29/2010 |
| Q: Hey Donald. I just have a question on Global warming. You hear a lot of people talk about "The ... A: Back in 2006 I was asked the same question; here's my response: Subject: Global warming - is it ... | |
| Measurement of rainfall | 10/27/2010 |
| Q: As part of a science assignment for middle school, my daughter is measuring rainfall for one week. ... A: There are two ways: If the bucket has straight vertical walls, all you need to do is put a ruler in ... | |
| Station plot coding | 10/27/2010 |
| Q: I am looking at a weather report for Houston on October 5,2010 and I need to know where do I find ... A: I need to know what kind of weather report you're looking at; if you have a link (url)for it you ... | |
| Cloud Density and light transmission | 10/25/2010 |
| Q: Donald, I teach meteorology at the community college level, but I have never been able to find the ... A: My answer would be all of them plus variables about the sunlight or moon light: ... | |
| post-hurricane | 10/24/2010 |
| Q: I wonder if you might help me. I'm trying to find out what the weather is like in the immediate ... A: Well, it depends upon how you'd define "immediate". Some people say that it is very humid and others ... | |
| snow Carrollton Georgia | 10/22/2010 |
| Q: ANSWER: Hi Ean It looks likely! Your zip for Carrollton Georgia is close to Atlanta so looking at ... A: Generally, La Nina means warmer weather for Georgia which, in turn, means less snowfall. With that ... | |
| "The Greenland Block" vs global warming | 10/19/2010 |
| Q: Hey Donald, I'm 20 and ive been tracking weather since 2001 (Im NOT interested in entering ... A: A question also might be is what causes an abnormal seasonal shift of any major atmospheric feature, ... | |
| Fog | 10/8/2010 |
| Q: I wanted to know is it possible to spray FOG(not a mist)? Like for instance you would spray cologne? A: See if these help: http://www.youtube.com/watch?v=qLO-0WbAGk0&feature=fvw ... | |
| prevailing winds | 9/25/2010 |
| Q: What are the prevailing seasonal winds in Washington D.C. and Baltimore MD.? Is there a website ... A: For Washington: http://www.bestplaces.net/climate/details.aspx?cat=Miscellaneous&wmo=724030&locale= ... | |
| Wind/Vietnam | 9/21/2010 |
| Q: I'm trying to determine wind direction for the month of December in the general region of Hanoi ... A: This should give you the info you need: ... | |
| Hurricanes | 9/14/2010 |
| Q: What enables hurricanes to defy the coriolis effect? Why do they travel from the west coast of ... A: The coriolis effect is too weak to influence hurricanes except on the initial formation: ... | |
| Winds | 9/14/2010 |
| Q: How do winds mix down to the sfc? Does it depend on the speed of the low level winds to the sfc ... A: Mixing winds occur with updrafts and down drafts from thermal currents, turbulence and frictional ... | |
| Moon and TIdes | 9/5/2010 |
| Q: Aloha - i am an Earth and space science teacher in Hawaii. I know that the moon (and a little of ... A: See if this helps: Subject: AllExperts - Question and Answer for Question answered Date: Friday, ... | |
| Hurricane Earl | 9/1/2010 |
| Q: I'm new to this, and find it so cool, so thanks for taking the time to read my question! My question ... A: I think that Earl will be a risk to Halifax but it's still to early to make a definitive forecast. ... | |
| what's accurate | 8/27/2010 |
| Q: I'm going to take a chance and hope you know the answer to this question. If not maybe you can tell ... A: Any time an all time record high or low temperature is set, the regional NOAA office checks the ... | |
| Changing barometric reading to kpa | 8/23/2010 |
| Q: Is there a simple formula to change a barametric pressure reading of 29.5 to a kpa barametric ... A: To kilopascals: PkPa = 33.8639 X ( PinHg / 10 ) And to inches: PinHg = 0.295300 X PkPa Where: ... | |
| La-Nina Advisory?!? | 8/15/2010 |
| Q: Hey there Donald! I was searching through the national weather service site on the CPC page and I ... A: I haven't made a winter forecast yet but the following links may help: ... | |
| pressure height maps | 8/12/2010 |
| Q: why don't we pressure-height maps at sea level? and explain the difference between the observed and ... A: Great questions! Because the weather observing station's surface pressure is adjusted to sea level ... | |
| Optimum weather conditions for sunset.. | 7/31/2010 |
| Q: I am a photographer and was wondering, are their specific conditions within a detailed weather ... A: Looking at: http://www.google.com/images?hl=en%26q=sunset%26biw=1020%26bih=567 it looks like some ... | |
| lightning - concussive force | 7/26/2010 |
| Q: can lighting move something 500 lbs 15 feet A: I'd guess yes. Why? Because lightning can hit a nearby object which would then creative a concussive ... | |
| MJO | 7/25/2010 |
| Q: A: When I look at: http://www.hurricaneknowledge.com/satelliteviews.html and choose "Full Atlantic ... | |
| Hurricane wind | 7/22/2010 |
| Q: If a hurricane has sustained winds of 100 mph while still over the water and is moving in a north by ... A: Probably about 90 mph. The math would be 100 mph with 10 mph subtracted because the speed of ... | |
| Tropics | 7/16/2010 |
| Q: Ive noticed that the tropics have been quiet to due to a lot of SAL off of Africa. Just today im ... A: I don't and the reason is that I look at: http://www.hurricaneknowledge.com/satelliteviews.html ... | |
| Ball lightning | 7/14/2010 |
| Q: I was on my computer during a storm that was pretty much overhead. I could see the lightening ... A: The way I understand it is that lightning looks for a ground. A person who is not grounded is less ... | |
| Ball lightning | 7/13/2010 |
| Q: I was on my computer during a storm that was pretty much overhead. I could see the lightening ... A: It probably didn't kill you because you were not grounded or were poorly grounded; as to the ... | |
| fog oddities | 7/12/2010 |
| Q: One time in the UP of MI I was sitting by Lake Superior. It was foggy just offshore in the late ... A: Here are some photos: http://www.google.com/images?hl=en&q=fogbow ... | |
| Thermal balance of the Earth | 7/11/2010 |
| Q: We all know that heat comes from sun but how about cold. Temperature in sky is very low and minus 0 ... A: Here's the scoop on "cold" at the surface of the Earth, I may be missing one but basically there are ... | |
| Thermal balance of the Earth | 7/11/2010 |
| Q: We all know that heat comes from sun but how about cold. Temperature in sky is very low and minus 0 ... A: It is true that the majority of the atmospheric heat comes from the Sun but some also comes from the ... | |
| barometer readings | 7/8/2010 |
| Q: i have two barometers,one digital, one analog and neither ever read the same. why? the digital is ... A: It could be you need to set both instruments to the same barometric pressure and then watch them. If ... | |
| Average jet stream location summer/winter | 7/2/2010 |
| Q: My wife and I are looking for potential retirement locations in North America, one north and one ... A: Not sure that I agree with choice of being north of the jet stream in the summer but, to answer your ... | |
| La Nina winter 2011 Vancouver | 6/27/2010 |
| Q: Are they excepting La Nina winter for 2011 for Vancouver? A: Here's what NOAA thinks: http://www.cpc.ncep.noaa.gov/products/predictions/90day/fxus05.html "THE ... | |
| Weather & sleep | 6/25/2010 |
| Q: I was wondering would you please tell me: is it a fact that hot weather will make you fall asleep? ... A: Hot weather, without air conditioning, will make you have a harder time falling asleep. However, the ... | |
| Barometric Pressure and Altitude Sickness | 6/10/2010 |
| Q: I'm thinking of going to Tibet in August. I get headaches when the barometric pressure is low so I'm ... A: My guess would be that the critical issue is the lower atmosphere pressure with altitude, so I would ... | |
| quartz-like atmospheric effects - Fallstreaks | 6/10/2010 |
| Q: Following up from a previous thread "strange cloud formations" (I apologize for the misnomer because ... A: You're welcome and I've kept your question in my active file because I want to investigate falling ... | |
| quartz-like atmospheric effects | 6/9/2010 |
| Q: Following up from a previous thread "strange cloud formations" (I apologize for the misnomer because ... A: I'm glad that we have identified the crepuscular rays for sure. I'll continue to review the current ... | |
| strange cloud formations | 6/9/2010 |
| Q: I have never seen anything like this, it stopped me in my tracks (Hudson, NY). If you look closely ... A: Well, it could be "virga"; the close up might suggest that: ... | |
| Gulf Oil Spill Effects | 6/8/2010 |
| Q: How likely is it that the prevailing winds and currents will cause the gulf oil spill residue to ... A: Here is some thoughts (and a movie simulation) on your questions: ... | |
| strange cloud formations | 6/7/2010 |
| Q: I have never seen anything like this, it stopped me in my tracks (Hudson, NY). If you look closely ... A: I think the lower "splintering" to be: Fall Streaks: ... | |
| lightning | 6/5/2010 |
| Q: where does lightning come from? A: Lightning emanates from 2 locations: the sky and from the ground. So, there is cloud to ground, ... | |
| barometric pressure causes fatigue and depression | 6/3/2010 |
| Q: Is it so that low barometric pressure causes severe fatigue and depression? How do I get more ... A: Low pressure areas (storms) are associated with low atmospheric pressure and cloudiness. Lack of ... | |
| Hurricane suppression | 6/2/2010 |
| Q: Good day, Can you tell me if hurricanes can be prevented? If it can be predicted why cant it be ... A: The formation of hurricanes starts as an area of thunderstorms that then become a tropical ... | |
| Hurricanes and Houston | 5/27/2010 |
| Q: I bought a home in 2005 in Pasadena, Tx. Within the first 3 years, I experienced Hurricane Rita, ... A: Rita was a category 3 storm when it struck Texas: ... | |
| weather in the low country in south carolina | 5/15/2010 |
| Q: I am curious as to why it has been so blasted dry lately here in the summerville sc area laterly and ... A: You're right; so far this spring, the frontal systems have had the thunderstorm traveling to your ... | |
| Weather instruments | 5/13/2010 |
| Q: What are some popular weather instruments and what do they do? A: Thermometer: Tells the temperature of the air. Barometer: Tells the weight of the air. ... | |
| Vietnam Prevailing Winds | 5/10/2010 |
| Q: Donald, how would I be able to determine the direction of the wind during any season. What I am ... A: I'm unable to to find specific wind info for 1971, 72 & 73 but I think you may be able to get it ... | |
| advection/radiation sea fog | 4/21/2010 |
| Q: I'm an ocean kayaker/writer, and I want to get my facts straight. The fog that forms on British ... A: The high nearby terrain, depending upon the wind direction, shelters Queen Charlotte Strait from ... | |
| meteroloigist | 4/20/2010 |
| Q: Donald You as a meteoroloigist what doI need to know about currrents,tides,atmosphere,and wether A: For currents: http://oceancurrents.rsmas.miami.edu/ For tides: ... | |
| important concepts to know | 4/17/2010 |
| Q: Sir I am doing research for my 6th grade science class and i would like to know about 2 concept ... A: With respect to tides: 1. There are two high and two low tides each day. 2. During storms, both ... | |
| The future of weather forecasting | 4/5/2010 |
| Q: First, I really want to thank you all for the effort you put on this. My questions are: What is the ... A: Currently weather forecasting is composed of a meteorologist interpreting the computer generated ... | |
| Twice as cold | 3/24/2010 |
| Q: If it's 0 degrees outside, and it gets twice as cold, what is the new temperature? If you can answer ... A: Good question! http://en.allexperts.com/q/Meteorology-Weather-668/science-1.htm ... | |
| why does weather move from the west to the east | 3/24/2010 |
| Q: Iam in 3rd grade and i have a question, "why does weather move from the west to the east"and what ... A: In the northern hemisphere there are a band of winds about 18 thousand feet called the westerlies. ... | |
| orographic precipitation | 3/21/2010 |
| Q: i was wondering where relief precipitaion was most likely to occur in canada? thank you A: The area of the Canadian Rockies. http://en.wikipedia.org/wiki/Canadian_Rockies ... | |
| Is rain water safe for drinking? | 3/14/2010 |
| Q: Is rainwater actually safe ?? I live next to an industrialized part of a city, and due to water ... A: A great question! Many parts of the world depend on rain water for normal domestic use including ... | |
| High and low pressure cells | 3/3/2010 |
| Q: I'm having to teach about high and low pressure cells and I admit that I'm having difficulty ... A: Highs and lows co-exist and move independently depending upon many variables including pressure ... | |
| cold air mass movement & jet stream causes | 3/1/2010 |
| Q: Why does cold air mass - as a whole, move at some times more strongly east than it does at others. ? ... A: High pressure (weight) does tend to move and transfer air to areas of lower pressure. The cause of ... | |
| cold air mass movmnt/ distrib. - long./lat. | 3/1/2010 |
| Q: Why does cold air mass - as a whole, move at some times more strongly east than it does at others. ? ... A: Cold air masses are high pressure areas and move in the direction of lower pressure areas of warmer ... | |
| idaho weather in june | 2/25/2010 |
| Q: I was just wondering if you could tell me what the weather might be like on June 4th 2010, in ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Lake Michigan ice cover | 2/23/2010 |
| Q: How many times has the lake frozen in recorded history ?qu A: Looks like a 97% frozen over in 1978-79 but that seems to be the highest. Take a look at the ... | |
| snow | 2/15/2010 |
| Q: Sometimes during heavy snowfall the snow collects on transmission wire and forms all around the ... A: The electricity that passes through a transmission line creates a magnetic field which probably has ... | |
| Seasons and Weather | 2/15/2010 |
| Q: my name is Eliz. I am doing a project about the seasons and weather. For part of my project, I need ... A: 1. What do you think is the best part of your job? Forecasting hurricanes and snow storms! 2. What ... | |
| Weather and behaviour | 2/15/2010 |
| Q: I am currently in the final year of my Masters in Education and I am writing a dissertation ... A: Sounds like an interesting area for experimental studies!! I would presume that there must be ... | |
| Long range weather forecast | 2/14/2010 |
| Q: What are the "fall 2010 weather predictions" for Vancouver? Thanks! A: To get an idea of what NOAA thinks for the months involved, take a look at: ... | |
| cloud base and temp dewpoint conversion | 2/7/2010 |
| Q: There used to be a chart that had the Temp degrees F and the Dewpoint degrees F that when referenced ... A: See if any of the following links help: ... | |
| The moon | 1/30/2010 |
| Q: Neither I nor my friend had seen this in our lives. Thank you and hope to here from you soon A: It was probably a halo around the moon caused by the moon light passing through the ice crystals of ... | |
| NYC Weather | 1/14/2010 |
| Q: Do you know what the weather most likely could be in NYC from February 14-18, 2009? Thank you, ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Aviation Wx - ADDS | 1/14/2010 |
| Q: Where can I find an explanation of the symbols and markings on the adds prog charts and metar plots. ... A: The following links should help: http://adds.aviationweather.noaa.gov/progs/description.php ... | |
| barometric pressure | 1/5/2010 |
| Q: my name is Ethan. I fish for large mouth bass in tournaments and Im getting to the level where ... A: Well, there are 3 atmospheric pressure tendencies- steady, up or down. The faster the change the ... | |
| snow accumulation | 1/4/2010 |
| Q: What is considered "light", "moderate", and "significant" snow accumulations?.......thanks A: Typically, descriptions of light, moderate or heavy refer to the snow fall rate as determined by ... | |
| Dodge Tides | 1/1/2010 |
| Q: How Do you know when a dodge tide is about to occur? I live on Kangaroo Island , South Australia . A: A very good question! I've never been asked that one. A "Dodge tide" is a term to describe a tide ... | |
| potential northeast blizzard | 12/31/2009 |
| Q: What can we expect from this storm were i am at? what about the bolton ski resort area? can we ... A: This weekend and early next week there will be a snow event over central and northern Maine. ... | |
| How to measure snowfall depth | 12/25/2009 |
| Q: how do you measure snow to tell how many inches we got A: When you measure, avoid drifts. Use areas away from buildings and take 10 different measurements ... | |
| Thunder in December | 12/9/2009 |
| Q: I just arrived at work this morning and there is a rain storm. The temperature is 64 degrees and I ... A: First, thunder and lightning is possible in any month of the year. The occurrence of thunder in a ... | |
| why is winter taking so long in the northeast? | 12/7/2009 |
| Q: I was wondering what the winter has in store for us down here? What can we expect? Also i am going ... A: The jet stream storm track has been located abnormally south of it's normal location thus bringing ... | |
| what is a Nor' Wester? | 12/6/2009 |
| Q: i am doing my project on weather, and one of the things i have to look up is a nor' Wester. What is ... A: A nor'wester occurs in New Zealand as a dry wind and in India as a local thunder storm. ... | |
| clouds | 11/30/2009 |
| Q: WHy is it that it 5 a.m. where I'm at and there is no clouds? What is the cause of this? A: Could be a high pressure area over your location with descending air from above which is unfavorable ... | |
| weather | 11/30/2009 |
| Q: What are the types of precipitation found in NY seasonally during the entire year? A: In the warm months: rain, showers, hail, fog, and dew. In the cold months: snow, snow showers, ... | |
| CO2 | 11/24/2009 |
| Q: Mr. Rosenfeld, What are the "exact" levels of CO2 supposed to be here on Earth? Also, what role ... A: 0.04% http://www.cou2.com/Carbon-dioxide-in-the-Earth's-atmosphere.html Depending upon the solar ... | |
| december weather for vermont | 11/23/2009 |
| Q: I am taking a ski vacaction to Bolton Valley but im staying in the area of Burlington Vermont. I am ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| weather site | 11/23/2009 |
| Q: What would be a good weather website where I can find an example of a surface analysis and an ... A: The following links should help: http://joseph-bartlo.net/articles/102398.htm ... | |
| coastal weather | 11/11/2009 |
| Q: We have just bought an ocean going boat kept at Oxnard, CA, and want to know the best way to obtain ... A: These should help: http://forecast.weather.gov/wwamap/wwatxtget.php?cwa=lox&wwa=small craft ... | |
| correlation between weather and weddings | 11/11/2009 |
| Q: i intend to do a research with regard to the correlation between the weather and weddings in Kenya, ... A: I know of no research into the subject but this link may be of help: http://tinyurl.com/yjx2kuc I ... | |
| Weather, Earth Space Science | 11/4/2009 |
| Q: Average daily temperatures for one city, located at 15° south latitude, are 5°C cooler than ... A: Could be the first city is at a higher elevation or near the ocean; the answer probably would be the ... | |
| Component of Global Winds resulting from Sun Position | 10/30/2009 |
| Q: The longitude experiencing sunrise is, on average, considerably cooler than where solar time is ... A: What a wonderful question!! I believe you're right; it would work like a land breeze that goes from ... | |
| Weather movement | 10/28/2009 |
| Q: I need a seventh grade answer: Why is the majority of the weather moving from west to east? ... A: In the northern hemisphere storms generally move from west to east following the jet stream. However ... | |
| visual weather indicators | 10/27/2009 |
| Q: I am looking for the every day visual weather indicators that can tell me the wind speed/direction, ... A: On the ocean you can use wave height as a wind speed indicator but, on land, the best way is use a ... | |
| visual weather indicators | 10/27/2009 |
| Q: I am looking for the every day visual weather indicators that can tell me the wind speed/direction, ... A: Well, a person who is not connected to the internet could use: ... | |
| winter forecast | 10/20/2009 |
| Q: I was wondering what the winter has in store for us down here? What can we expect? Also i am going ... A: Here is what NOAA is forecasting for the winter months: ... | |
| hurricanes- Atlantic origin | 10/17/2009 |
| Q: where do most hurricanes form in the atlantic ocean? A: Most hurricanes that form in the Atlantic initiate off the coast of Africa; take a look at: ... | |
| Weather predictions verification | 10/12/2009 |
| Q: Is there a way to look up what the weather predictions were starting on Oct 5 for a 10 day ... A: This brings you out for 8 days but you'll have to wait till the 5th is archived: ... | |
| Climate in the Pyrenees | 10/9/2009 |
| Q: Reading a travel diary from a trip to France in 1988, I saw that the highest peaks in the Pyrenees ... A: Global warming impacts all parts of the earth in different ways and for different time frames. Here ... | |
| Hi and Low Temps | 10/5/2009 |
| Q: When listing hi and low temps for a particular day, is the low temp from the morning of that day or ... A: When NOAA reports the high and low temperature for the past day, the temperature could occur at any ... | |
| Southern Ontario Summers: Extinct? | 10/3/2009 |
| Q: I live in Toronto. After 35 of them, it seems to me that our summers are getting shorter and wetter, ... A: I think you are correct re the change of the climate in the Toronto area. I expect it is related to ... | |
| Predicting Storms | 9/25/2009 |
| Q: I actually have a couple of questions for a school project: 1)Where do you go to predict the weather ... A: 1)Where do you go to predict the weather: Weathermen use computers that have access to ... | |
| Weather and measurement | 9/24/2009 |
| Q: Our assignment is to ask a scientist five questions about how they use measurement in their work. ... A: Sounds like an interesting assignment!! 1)Do you personally make measurements, or do you rely on ... | |
| Lightning types | 9/20/2009 |
| Q: Does lightning come up from the ground or down from the sky? This is a question that gets much ... A: The correct answer is BOTH! There are cloud to ground, ground to cloud and cloud to cloud. There are ... | |
| unusual clouds | 9/8/2009 |
| Q: As you can see in the photo there were a couple long, ropelike clouds apparently extending for a ... A: There are two names for these clouds, Morning Glory: ... | |
| Lake Michigan Water Temp | 8/29/2009 |
| Q: Would like to know how the surface water temperature [8-28-09] compares to the same date on previous ... A: See if these help: http://www.coastwatch.msu.edu/michigan/7day/m/ ... | |
| Causeway rain | 8/26/2009 |
| Q: Is there a difference between intensity of wind and rain between land right near the water and out a ... A: If you have noticed this phenomena on several occasions it probably is not your imagination. So, the ... | |
| barometric change headaches | 8/22/2009 |
| Q: I too suffer from pressure change headaches and take medication for them. My problem is trying to ... A: Here's an average pressure map of the entire USA: http://cdo.ncdc.noaa.gov/climaps/slvp6113.pdf ... | |
| Wedding date weather | 8/22/2009 |
| Q: I'm getting married may 1 2010. I was wondering about weather, rain, temp, and all that stuff i need ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Summer Storms | 8/18/2009 |
| Q: I live in Ithaca, NY. It seems that the big thunderstorms occur usually between 4:30 and 6:00 pm. Is ... A: Generally speaking, without being associated with a cold front, convective weather is most likely ... | |
| Electrical flash | 8/15/2009 |
| Q: Last night, a friend and I were driving back to my house from hers. We were on the highway just ... A: Most likely you saw a flash of green light from the short circuit and resulting melting of a copper ... | |
| tropics | 7/31/2009 |
| Q: But so far this year there's been a lot of dust and wind sheer all thru the tropics. Do you see or ... A: The wind shear: http://cimss.ssec.wisc.edu/tropic/real-time/atlantic/winds/wg8sht.GIF seems to be ... | |
| precipitation pattern on eastern seaboard | 7/30/2009 |
| Q: Does the East Coast of the United States get a lot of rainfall in the autumn? Ot does that happen ... A: The short answers are yes and yes. The fuller answer is: "Rain soaked" and "day" indicate more than ... | |
| Tornado outbreaks as patterned events | 7/27/2009 |
| Q: Forgive my use of a mathematical term like cardioid in this discussion but it is interesting that ... A: I think, maybe, that your best bet is to try posting your theory here: ... | |
| Tornado outbreaks as patterned events | 7/27/2009 |
| Q: Forgive my use of a mathematical term like cardioid in this discussion but it is interesting that ... A: I think that frontal squall lines and meso thunder storm complexes are not periodic and therefor ... | |
| Tornado outbreaks as patterned events | 7/27/2009 |
| Q: Forgive my use of a mathematical term like cardioid in this discussion but it is interesting that ... A: After a further review of the word "cardoid" I find that you are correct in your usage. I see: ... | |
| Air pressure and health | 7/27/2009 |
| Q: I have a question/comment for you about a posting I found by you that asked for comments on air ... A: My answer to that 4/18/07 question was: ... | |
| Tornado outbreaks as patterned events! | 7/27/2009 |
| Q: I hope that you are up for this as this inquery is the result of thirty-three years of research. I ... A: There is no way that my opinion can compete with your 33 years of research. My general comment is ... | |
| Cruise Trip weather | 7/25/2009 |
| Q: Rosenfeld, I am considering a cruise from Los Angeles to Hawaii. We will be at sea for 4 days ... A: The ocean temperatures remain high so the weather is warm in Hawaii even in January. The storm track ... | |
| High and Low Pressure Systems | 7/23/2009 |
| Q: I am a JROTC Instructor and I am teaching a block on weather. I have been trying to untangle the ... A: Generally speaking the right sector of a low pressure has warmer air then the left side. Take a look ... | |
| VIL and hail index | 7/23/2009 |
| Q: I was trying to find errors associated with both of them that could lead to inaccurate measurement ... A: Glad you said you'd accept "any input" in that severe weather research is not an area that I have ... | |
| multiple questions | 7/19/2009 |
| Q: in the northern hemisphere, it is stated that if you have your back to the wind, then a low pressure ... A: **** = interspersed With regards to lows in the northern hemisphere would it subsequently follow ... | |
| Highs & Lows | 7/18/2009 |
| Q: in the northern hemisphere, it is stated that if you have your back to the wind, then a low pressure ... A: A very good question! I think, for the moment, that my best answer would be: If the wind to your ... | |
| lightning strike? | 7/16/2009 |
| Q: We have a cupola on top of our house and would like to add a weather vane. Would this potentiate a ... A: I'm not an expert at lightning protection. With that said, any thing sticking up from a roof can ... | |
| science and health | 7/13/2009 |
| Q: whwt is the cause of a weather like sunny, rainy, cloudy,and windy? A: Lets take them one at a time: Sunny weather is associated with fair weather which is associated ... | |
| Lightning | 7/12/2009 |
| Q: The other day I was watching lightning. Some of the strikes had only one flash of light, while ... A: Multiple bolts using the same path is not uncommon, it is caused by the first bolt creating a path ... | |
| New Zealand weather in February | 7/9/2009 |
| Q: What is the likelihood in February of the weather being clear enough to see the mountains framing ... A: Take a look at: http://www.bestplaces.net/climate/city_for.aspx?cty=NZ pick the closest city and ... | |
| weather 7/18/09 southern nh | 7/7/2009 |
| Q: I am getting married on July 18, 2009 in seacoast nh, the portsmouth area, any idea what the weather ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| High / Low Temperature, time of.... | 7/2/2009 |
| Q: On most forecasts, it shows the high temp forecast followed by the low temp forecast for a ... A: A forecaster's forecast may be for up to midnight or some other time period. However, in ... | |
| wind speed averages | 6/30/2009 |
| Q: What is the yearly average wind speed at both Hanscom Air Force base and Bedford, Massachusetts A: Hanscom and Bedford should have about the same wind speeds except that Hanscom is more open because ... | |
| Vocabulary | 6/29/2009 |
| Q: I have heard of a large rolling cloud of dust as in Arizona. I believe it has been call a "haboom", ... A: See if these links help: http://en.allexperts.com/q/Meteorology-Weather-668/Weather-issue.htm ... | |
| wind pressure | 6/29/2009 |
| Q: if the wind aloft is blowing parallel to curved isobars, with the horizontal pressure gradient force ... A: It would depend upon whether whether the "curved" isobars were curved as part of a cyclone or an ... | |
| wind pressure | 6/29/2009 |
| Q: If the earth were not rotating, how would the wind blow with respect to centers of high and low ... A: The winds would blow from the north or south and there wouldn't be organized low or high presure ... | |
| weather condition | 6/27/2009 |
| Q: I am having a luau 50th birthday party on July 18th, 2009 in Dunkirk, NY and was wondering if you ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Upside down tornadoes | 6/26/2009 |
| Q: What is the technical term for an upside down tornado? A: There is no such thing as an upside down tornado and, therefore, there is no name for such a thing. ... | |
| Barometric Pressure | 6/22/2009 |
| Q: I am wondering if there is a connection b/t giving birth and drops in barometric pressure. Sounds ... A: I don't believe that there would be unless the atmospheric pressure was extreme which it wasn't June ... | |
| Summer in NYC | 6/22/2009 |
| Q: It is know NYC is very hot and humid in the Summer. Can you please tell me what is your forecast ... A: I think it will be a little below average temperature wise but wetter than normal. Below is my ... | |
| Weather Phenomenon | 6/19/2009 |
| Q: Rosenfeld. I have lived in a rural area of East Central Minnesota for 6 years and continually ... A: My guess would be a topographic effect that is preventing you from getting convective weather ... | |
| atmospheric attenuation | 6/16/2009 |
| Q: What is the best forecast metric to follow to gage atmospheric attenuation due to moisture? Thanks. ... A: The part of the observation that is visibility. http://www.theweatherprediction.com/habyhints/276/ ... | |
| Wedding weather | 6/15/2009 |
| Q: Can you please tell me what the weather in Ohio was on October 3, 2008. We are having a wedding ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Ocean Temperatures and El-Nino / La-Nina | 6/12/2009 |
| Q: Hey Donald. My question is, What is the average ocean temperature for both Pacific and Atlantic. And ... A: By month, see: http://www.nodc.noaa.gov/dsdt/sst_ani.htm For El Nino & LaNina, see: ... | |
| Dramatic pressure change and A/C | 6/12/2009 |
| Q: Last night in the Dallas Area we had extreme weather and possibly even a tornado. We operate a data ... A: I believe that the ac system has an outside temp sensor that feeds temp info to the microprocessor ... | |
| Dramatic pressure change and A/C | 6/12/2009 |
| Q: Last night in the Dallas Area we had extreme weather and possibly even a tornado. We operate a data ... A: I see the 16 degree temperature drop at the airport which looks like it was associated with a ... | |
| WEATHER PATTERNS | 6/10/2009 |
| Q: I have a question about the weather patterns in my area - Valmeyer, IL 62295. We have had a very, ... A: The jet stream: http://www.weatheranswer.com/public/Jet_Stream_by_Krista_Feierabend%20.pdf ... | |
| Storm Spotter | 6/8/2009 |
| Q: Hey Donald, I was wanting to become a storm spotter. I have already been to the NWS home page and ... A: These should help: http://espotter.weather.gov/ w-ind.webmaster@noaa.gov ... | |
| Storm Spotter | 6/8/2009 |
| Q: Hey Donald, I was wanting to become a storm spotter. I have already been to the NWS home page and ... A: I think the local NWS offices have their own regulations about what criteria is to be used to ... | |
| Weather | 6/6/2009 |
| Q: I'm having a BBQ on July 20th. What will the weather be like? thanks, Bernie A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Cloud base heights | 6/4/2009 |
| Q: I have been tracking data from the nearest weather station and calculating cloud base heights using ... A: A very good question! There are other variables such as the amount of mixing and stability of the ... | |
| rare storms | 6/2/2009 |
| Q: I recently saw a derecho hit in the US. I was wondering what other rare storms were out there that I ... A: A derecho is a meso scale phenomena associated with convective weather, as you know. In answer to ... | |
| June 13th, 2009 | 6/1/2009 |
| Q: This is 11 days away... I am wondering what the weather will be like in Chicago, IL A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| follow the cloud | 5/31/2009 |
| Q: I would like to know what would happen if you try to follow a cloud around. Where would you end up? ... A: A good question; clouds are actually local phenomena in that they form, exist for a short while and ... | |
| weather | 5/30/2009 |
| Q: I'm getting married June 5,2010. I'm having an outdoor wedding and was wondering if I'm going to ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Calculating Rainfall | 5/27/2009 |
| Q: I have just collected 2 Cups of rainfall in a liquid measuring cup after a rainy afternoon and ... A: The way I would do it, pour the rain back into the two cups. If the cups have straight sides, just ... | |
| hail | 5/25/2009 |
| Q: my name is Grace, I live in Albuquerque NM. Yesterday May 24 it rained and hailed. the hail was ... A: In that: http://www.spc.noaa.gov/climo/reports/090524_rpts.html does not indicate any tornadic ... | |
| Rain | 5/22/2009 |
| Q: How high does a cloud have to be for it to rain, and what temprature does the cloud have to be for ... A: Rain being defined as moisture condensed into drops falling can be from clouds as low as 50 feet ... | |
| Air pressure systems | 5/18/2009 |
| Q: Why don't pressure systems stay in one place very long? A: The upper air winds move them along; if the upper air winds are weak it can mean very slow motion. ... | |
| Weather on 30th June? UK | 5/18/2009 |
| Q: We're having a fundraiser on 30th June 2009, and most of the activities are taking place outside, ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Low Barometric Pressure | 5/14/2009 |
| Q: Sudden drops in Barometric Pressure can cause me to collapse. How low can air pressure drop? Less ... A: Normal sea level pressure is about 1015 hectopascals. A normal storm would be about 1005 hPa, a ... | |
| tornado | 5/9/2009 |
| Q: Does the height of thunderstorm cell development have any relation to will the storm spawn a ... A: There is a correlation of the height of the cumulonimbus cloud to the occurrence of a tornado. In ... | |
| WEATHER CYCLES | 5/7/2009 |
| Q: I live in VALMEYER, IL 62295. All through April and now May, it seems that it has been raining ... A: The jet stream has been bringing convective areas of showers and thunderstorms through your area ... | |
| Frontal Boundaries | 5/7/2009 |
| Q: My son is working on a weather project for school. Pls tell us what frontal boundaries are depicted ... A: Triangles = cold front Semi circles = warm front semi circles on one side with triangles on the ... | |
| Weather - High & low pressure systems | 5/7/2009 |
| Q: I have severe physical reactions to the constantly changing weather, particularly the low pressure ... A: Montana, North Dakota & Minnesota have the greatest frequency of high pressure away from significant ... | |
| June 6th 2009 weather | 5/3/2009 |
| Q: What will the weather be like for June 6th 2009 in the citys of Vicksburg Ms 39180 and Bovina Ms ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Barometric Pressure | 5/2/2009 |
| Q: I was just wondering: is there a relationship between barometric pressure and temperature? Are ... A: Temperature is a factor in the weight of the atmosphere, one of many; take a look at: ... | |
| clouds & rain | 5/1/2009 |
| Q: Are the clouds (only the ones which make rain) stired up by winds? sincerely A: Yes Take a look at: ... | |
| Nitrogen | 4/30/2009 |
| Q: what does the nitrogen in our atmosphere come from? A: Soil bacteria converts nitrates in the soil to gas by a process called Denitrification. The gas then ... | |
| 10/3/09 Wedding and i need a weather prediction. | 4/29/2009 |
| Q: Please let me know what you think the weather will be for October 3rd 2009, I am having an outdoor ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Low barometric pressure and headaches | 4/26/2009 |
| Q: I suffer from headaches due to low barometric pressure. Which is unfortunate because I live in ... A: Generally speaking: high pressure = 30.20 and higher normal pressure = 30.20 down to 29.80 low ... | |
| Weather Question | 4/21/2009 |
| Q: I would be very grateful for some help please. I have been given a question which reads. There is an ... A: On what timescale does this fluctuation occur and what causes it? ... | |
| Birthday June 26th 2009 | 4/20/2009 |
| Q: I am traumatized with weather! I was so happy with my babyshower, planned ahead and had everything ... A: Late June is usually ok in Florida so I think you'll be fine. However, the date is too far in the ... | |
| water temp. | 4/18/2009 |
| Q: if the air temp is around 60 what do you think the water temp. is going to be? A: Water temperature is impacted by many variables, air temperature is only one. Others include: ... | |
| dew point in the sahara | 4/16/2009 |
| Q: I often browse weather conditions here and there, and have noticed that it can be very hot and at ... A: The dewpoint is the temperature at which the air temperature would have to fall to which would allow ... | |
| weather | 4/15/2009 |
| Q: I'm going to be graduating in May and hoping the weather will be beautiful. What will the weather ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| meteorology | 4/14/2009 |
| Q: I plan on doing meteorology when I get older and I have information about pretty much everything but ... A: The jobs typically are with the Federal government or tv stations, fewer are with private weather ... | |
| el nino | 4/8/2009 |
| Q: can you briefly explain to me what the el nino is? A: An el nino is a change of temperature in part of the Pacific Ocean that leads to a seasonal ... | |
| presssure | 4/7/2009 |
| Q: tell me about barometrict pressure A: Put simply, barometric pressure is the weight of the column of air above a barometer. A barometer is ... | |
| aneroid barometer | 4/6/2009 |
| Q: can you describe in a simple answer of how an aneroid barometer works? A: An aneroid barometer is a chamber made of thin metal that has had the air in side removed almost to ... | |
| Least severe weather? | 4/5/2009 |
| Q: My husband and I will be relocating soon, and I absolutely cannot tolerate living in places with ... A: Severe weather, thunderstorms, hail & tornadoes are less likely on the Pacific coast. Take a look ... | |
| EchoTops | 4/5/2009 |
| Q: Hey Donald, I was wondering is a Echo top at around 30,000ft a severe thunderstorm? Or how high do ... A: I have seen a funnel from a cumulus congestus cloud with a top at 7,000 +/- feet. With that said, ... | |
| weather effecting the lights | 4/3/2009 |
| Q: On a very cold clear winter night, every light that we could see, such as porch lights, street ... A: It was probably some sort of fog or ice crystals that acted as an optical ducting mechanism. Take a ... | |
| Wind and Tempature | 4/2/2009 |
| Q: Does wind effect temperature? ANSWER: Hi Ariel Depends upon how you mean "effect". If the air ... A: You could take a person or two and place a large fan blowing in their direction with their shirt(s) ... | |
| Winds | 4/1/2009 |
| Q: I would be grateful for some help please. I have 2 questions: 1) If the rotation of the earth ... A: The following links should give you a clear picture of what's happening: ... | |
| Weather for June 6, 2009 | 4/1/2009 |
| Q: I know June is two months away, but can you give me any predictions for June 6, 2009 weather? A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| weather related migraines | 3/31/2009 |
| Q: I thought I had figured out why I get migraines. It seems that when a front moves in, I get a ... A: The weight of air, by varying, does cause changes in our sinuses which probably is causing your ... | |
| Wind and Tempature | 3/30/2009 |
| Q: Does wind effect temperature? A: Depends upon how you mean "effect". If the air temperature is 50 degrees Fahrenheit and the wind ... | |
| El-Nino And La-Nina | 3/28/2009 |
| Q: Hey there I was just wondering how does a forecaster forecast if there will be a possible El-nino or ... A: The link (url): http://sealevel.jpl.nasa.gov/science/jason1-quick-look/index.html shows: "These ... | |
| weather may 2, 2009 new york city | 3/24/2009 |
| Q: do you know ow might be the weather in new york at 2nd of may 2009 A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| weather forcast | 3/23/2009 |
| Q: I am planning a trip to Lake Okoboji Iowa and am wondering what the weather will be like on May 19th ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| April 5, 2009 | 3/21/2009 |
| Q: I am having a birthday party outdoors in West Covina, California and would like to know what the ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Future Weather | 3/13/2009 |
| Q: What will be the weather forecast in Chicago, IL for June 20, 2009 & June 27, 2009? A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Frontal boundaries | 3/10/2009 |
| Q: How do you determine which way a frontal boundary is advancing A: Fronts move in the direction the wind is pushing them. So, if you look at a weather map: ... | |
| Tornadoes and forecasting | 3/10/2009 |
| Q: A: They use special maps: http://www.weathermichigan.com/risk_air_index.htm and they use atmosphere ... | |
| Forecasting Hail | 3/9/2009 |
| Q: Hey Donald. I'M back with another question. Could you give me an idea on how and what kind of maps ... A: Here is a map that will save you time: http://www.usairnet.com/weather/maps/forecast/hail/ If you ... | |
| weather in Oct 2009 | 3/9/2009 |
| Q: i know it's a far way's off, but i'm getting married outdoors October 3 in Kingston, NY. can you ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Water Spouts | 3/7/2009 |
| Q: Rosenfeld, My 6 year old daughter and I have a fascination with extreme whether. While learning ... A: Good questions! A waterspout ... | |
| jamaican weather | 3/5/2009 |
| Q: I know weather forecast more than 7 days is unreliable but looking at past history can you give me a ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Temperature inversions | 3/2/2009 |
| Q: Why are inversions more common on winter nights than on summer ones? A: I'm not sure that the statement is true, especially for all areas. Also, winter months are a longer ... | |
| Weather On June 25th 2009 in jerome Idaho | 3/2/2009 |
| Q: Could you tell me what the weather should be like on June 25th 2009 in Jerome Idaho A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Temperature forecasting | 2/25/2009 |
| Q: Hey Donald I was e-mailing my local meteorologist about temperature forecasting on how to get better ... A: Here is the 850 millibar chart which Meteorologists use to see the temperature at around 5000 feet. ... | |
| convections | 2/24/2009 |
| Q: I am currently translating a documentary (EN to French) on satellites and there's a part on ... A: With respect to Meteorology, convection refers to vertical air movements caused by the heating of ... | |
| Math Vs. Meteorology | 2/22/2009 |
| Q: How do you feel is the best way to explain to students that math and meteorology have to work ... A: You can talk about how math is important to expressing distance, time, height, velocity and ... | |
| Weather warnings | 2/19/2009 |
| Q: What factors go in to deciding wether to call a state of emergecny during the winter? A: Another good question! A "State of Emergency" is put into effect by either the State or Federal ... | |
| Lake Effect Snow | 2/19/2009 |
| Q: What kinds of problems can develop if we get at least half a foot or more + lake effect?Sorry if it ... A: Whether it be lake effect snow or any kind of snow, both have weight and slipperiness associated ... | |
| Car stuck in snow. | 2/19/2009 |
| Q: How much snow needs to be on the roads for a car to get stuck?Sorry,this sounds like a goofy ... A: A car can get stuck in ANY amount of snow. Some of the variables are the type of tires, the amount ... | |
| Weather maps | 2/17/2009 |
| Q: I have another question for you Donald! I have my own weather blog and have had it for almost a ... A: Well, you could use the maps at: http://www.weatherknowledge.com/weather_forecasting_aids.html but ... | |
| wind / force / pressure formulas | 2/16/2009 |
| Q: If I have a flat plate 2 1/4 ft wide x 8 ft long and it is at 45 degrees how much pressure in sq ... A: I've been asked this question twice before; see if either of these two prior answers help you: ... | |
| weather | 2/16/2009 |
| Q: What will the weather be like on February 28 2009 A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| One of my favorite things | 2/13/2009 |
| Q: Rosenfeld, I'm a 34 year old mother of 2, in school for medical coding, and happen to have a big ... A: Alpine Glow is a phenomena of long frequency light creating an afterglow of pink before and ... | |
| Rain gauge | 2/11/2009 |
| Q: Hey there again Donald. I need your help. I have both a rain gauge and a digital rain gauge. My ... A: In general, I believe in a non-digital gauge because there are no electronics that can go bad. ... | |
| October 3, 2009 | 2/11/2009 |
| Q: Can you please tell me what the weather looks to be like on this day. And what will the moon be ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| High/Low Temperatures in Weather Forecasts | 2/10/2009 |
| Q: Often, I see a day (say three days from now) with a Low Temperature forecasted of say 50 degrees, ... A: You are correct that I read your constructs incorrectly. Let me try again with your question as ... | |
| High/Low Temperatures in Weather Forecasts | 2/10/2009 |
| Q: Often, I see a day (say three days from now) with a Low Temperature forecasted of say 50 degrees, ... A: A very good question! The way it works is that the forecasting period is for each 24 hour period- ... | |
| Tornadoes | 2/9/2009 |
| Q: Hey Donald I know Tornadoes are not really able to be forecasted but is there any kind of weather ... A: Take a look at: http://www.spc.ncep.noaa.gov/exper/mesoanalysis/ http://kamala.cod.edu/SPC/ ... | |
| Sinus headaches & atmospheric pressure. | 2/8/2009 |
| Q: Although it was somewhat helpful, I've done all the research and still haven't received any real ... A: You're welcome. Most likely it is the amount of change vs the time to change. If it were simply the ... | |
| Temperature | 2/3/2009 |
| Q: Has the temperature ever been higher at night than during the day? A: Many times! Frequently if a warm front comes through late in the evening, then the late night temps ... | |
| air pressure and health | 2/2/2009 |
| Q: Today we have alot of snow. I have noticed my arthritis feels much better today. Can there be a link ... A: I think some people are affected by changes in atmospheric pressure because the joints with pouches ... | |
| unusual clouds | 2/1/2009 |
| Q: I have searched loads of websites to find out what it is called without success. I am attaching one ... A: Looks like low Lenticularis clouds: http://apod.nasa.gov/apod/ap090203.html ... | |
| weather | 1/28/2009 |
| Q: Me and my fiance are getting married on April 18th of this year. I was wondering if you can tell me ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Barometer | 1/27/2009 |
| Q: my name is Emily and I am in 5th grade at Akron Elementary School. I am doing extra credit and it ... A: The numbers 31 and 28 indicates the weight of the atmosphere over the barometer's location in inches ... | |
| Models and forecasting | 1/24/2009 |
| Q: Hey Donald I seen you are a long time forecaster and wanted to know if you could help me a bit? I'M ... A: A computer model I like to use is called the emcwf: ... | |
| METEOROLOGY | 1/22/2009 |
| Q: WHY IS IT THAT SOME TV WEATHER FORECASTERS WILL SAY THAT IT IS MINUS X DEGREES BELOW 0 AND OTHERS ... A: The correct way is to say it is "it is 10 degrees below zero". However, many will say "it is minus ... | |
| We want to see snow!!! | 1/22/2009 |
| Q: My family and I live in North Florida and would like to spend a weekend enjoying the snow. We don't ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Different temperature in different altitudes (more detailed than just the average lapse rate). | 1/20/2009 |
| Q: I would like to know 3 things: 1. I'm interested in the different temperatures at variyng altitudes. ... A: 1. Is there a certain level in the atmoshere at which the hotter air is still on top of the colder?: ... | |
| Global Warming | 1/17/2009 |
| Q: In your expert opinion, what effect does melting ice cover (in Greenland,Arctic etc.) have on ... A: My opinion is that it shows that there has been above average warmth in that area for the last ... | |
| severe weather | 1/17/2009 |
| Q: I live in ithaca,ny.Last spring/summer we had some bad storms and some tornado warnings.I dread this ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Severe carribean | 1/11/2009 |
| Q: Im planning a trip to Puerto Rico and i was wondering can they get severe t storms like we get here ... A: Puerto Rico does get severe thunderstorms; however, tornadoes only occur about one per year: ... | |
| Pacific Ocean Weather | 1/10/2009 |
| Q: Taking a cross Pacific Ocean Cruise 17 days in the month of March 2009 fro L.A/ to Hong Kong with ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| wet cold and dry cold | 1/8/2009 |
| Q: Why is it that in wetter climates the cold feels more "bitter" than in dryer climates. Even in dryer ... A: This may be what you are referring to: ... | |
| weather | 1/3/2009 |
| Q: What do you call a severe storm at sea during which spray and precipitation freeze onto the decks ... A: Meteorologists call a severe winter storm at sea a major cyclone. If the temperature is below ... | |
| Lines across atlantic | 12/18/2008 |
| Q: Could you explain these lines across the atlantic in these images? These images are from 12-16-2008 ... A: It looks to be satellite images from the northern & southern hemisphere stitched together for a ... | |
| ice | 12/15/2008 |
| Q: What are the ramifications of one tenth of an inch of ice on roads, trees, etc. A: Any ice on unsalted/sanded roads is an extreme hazard. As to 1/10th on trees, if a tree is weak or ... | |
| cold air mass movement - more longitudinal | 12/13/2008 |
| Q: I'm trying to appreciate what the standard meteorological reasoning is, as to just why cold air mass ... A: Pretty much all cold air masses (high pressure areas (anti-cyclones)) in the northern hemisphere ... | |
| Large ring in the sky around the moon | 12/11/2008 |
| Q: Last night I observed a large reflection/refraction around the moon. I've seen small rings before ... A: Nice photo! Looks to be a "double halo"! As I look at the left side of the photo, the larger ... | |
| cold air at night | 12/7/2008 |
| Q: When the night air is still and the sky is clear, temperature drops are increased, especially in ... A: It is called "radiational cooling". Here is some more info: ... | |
| what is dew point? | 12/2/2008 |
| Q: What is the definition of and a few examples of "dew point". A: The dewpoint is the air temperature that dew would form at. So, if the temperature of the air was 70 ... | |
| is it too cold to snoq | 12/1/2008 |
| Q: Can you please explain at what temperature the snow will fall. Can it snow on temperature below -10 ... A: It is never to cold to snow but at temperatures way below zero the snow may be just very fine ice ... | |
| Hurricanes and thunderstorms | 11/23/2008 |
| Q: Is there thunder&lighting when a Hurricane makes landfall A: All hurricanes have thunder and lightning over the ocean and on land. The reason is that the ... | |
| Lightening | 11/22/2008 |
| Q: On a stromy wheather where lightening and thunder showers are occuring, which is the safe ... A: In your car (hard top) because lightning seeks a ground and the tires of a car are made out of ... | |
| Tornado structure and development | 11/18/2008 |
| Q: Hey, I was researching the tornado that was in Southeastern NY on June 16, 2008. Basically several ... A: Well, looking at the radar it looked to be a very active squall line with out any need of any extra ... | |
| Question from the TV show CSI | 11/16/2008 |
| Q: Mr. Rosenfeld. My name is Jon and I'm a researcher for the CBS television show CSI: Crime Scene ... A: Smoke not rising indicates an inversion: ... | |
| where does lightning come from? | 11/15/2008 |
| Q: where does lightning come from? is it from the ground or from the sky? this has been an on going ... A: Lightning comes from BOTH the cloud to ground and from the ground to cloud. There is also lightning ... | |
| Dew point | 11/13/2008 |
| Q: Hey Donald I think I got this right this time! :-) How do you forecast Dew point? A: One way is to use the model output such as: ... | |
| Fog forecasting | 11/13/2008 |
| Q: Hey there Donald, I know Dew point is used for many things and it is used for forecasting Fog... But ... A: The fog probability is increased if the air temperature falls to the dewpoint but is not required in ... | |
| cloud identification | 11/12/2008 |
| Q: Saw an interesting cloud the other evening and would like to know what kind it is. I am attaching ... A: It looks to me to be a line of dying cumulonimbus clouds with anvil tops. Here's more info: ... | |
| tornadoes | 11/11/2008 |
| Q: what will happen when a tornado crosses the equator from north to south? Will it continue rotation, ... A: My guess that a formed tornado would have such built up rotational force that the wind rotation ... | |
| Not sure if this is going to sound Dumb... | 11/9/2008 |
| Q: Me and my sister where outside when we noticed this very large fog like circle around the moon. ... A: Sounds like a halo around the moon. A halo is caused by the moon light passing through the cirrus ... | |
| Heat lightning | 11/8/2008 |
| Q: hi is there such a thing as heat lightning?? A: There is "heat lightning". Basically, it is a misnomer describing lightning that you see as a ... | |
| Rain to snow | 11/8/2008 |
| Q: Hey Donald, I keep coming to you because you have good answers.....I'M trying to forecast snow! So ... A: A half an inch of rain equals about 5 inches of snow. A tenth of an inch of rain would equal 1 inch ... | |
| Frozen dew | 11/7/2008 |
| Q: When dew is frozen what is it called ? A: Frozen dew or black ice. Frost is sometimes used but actually forms through a different process. ... | |
| Best weather conditions for woodstove fire | 11/6/2008 |
| Q: In order for our wood smoke not to fall to the ground,what weather conditions should I be mindful ... A: Higher pressure, stationary fronts and under 5 mph all can contribute to smog conditions, pollution ... | |
| Seasons | 11/5/2008 |
| Q: I would like to know what causes seasons like summer, winter etc. Regards A: Seasons are determined by closeness to the sun which is a result of the sun angle in relation to a ... | |
| Best weather conditions for woodstove fire | 11/5/2008 |
| Q: In order for our wood smoke not to fall to the ground,what weather conditions should I be mindful ... A: Days with calm or very light winds will allow smoke from your fireplace to become a problem for you. ... | |
| Thickness chart temperature forecasting | 11/3/2008 |
| Q: Donald, Do you know how to forecast temperature's using (Thickness charts) and if so could you ... A: A very good question! A thickness chart is a weather chart that shows the thickness in height ... | |
| Lightning - crackling noise | 10/31/2008 |
| Q: Last night we had a thunderstorm overhead and, at its closest, the interval between lightning and ... A: The extremely short interval between the lightning and the thunder meant that the lightning ... | |
| Precipitation | 10/28/2008 |
| Q: How is sleet and freezing rain measured? Would it be the same as measuring rain with a rain gauge? A: Sleet is measured the same way as snow is measured; see: ... | |
| Will this work?? | 10/24/2008 |
| Q: Hey Donald, I have a question. Will this online class for meteorology work or will I still have to ... A: Based on the limited info about the content of the courses I would guess that this "class" is about ... | |
| Hurricanes | 10/23/2008 |
| Q: Are hurricanes influenced by global warming or is it influenced by the sun and moon? How can I find ... A: There is year to year and many year cycles of hurricane patterns regards to frequency and paths. The ... | |
| stable wind and warm weather regions in us | 10/23/2008 |
| Q: I would like to move to a warmer state, but seriously need to know what area of the u.s. is the ... A: Here is a map of annual wind speed for the US: ... | |
| radon | 10/22/2008 |
| Q: I am an Atlanta Real Estate agent. A radon test is currently being run in a house my client will be ... A: You're welcome & thanks for the good rating! Normal sea level pressure is 29.92. The readings in ... | |
| radon | 10/22/2008 |
| Q: I am an Atlanta Real Estate agent. A radon test is currently being run in a house my client will be ... A: Barometric pressure is a measure of the weight of the atmosphere. Since radon gas is try to come up ... | |
| Free air freezing level | 10/21/2008 |
| Q: I have heard the term "friata" (sp.?) freezing level on NOAA radio. Is this an acronym, the same as ... A: It rings a bell but I'm unable to identify it. Take a look at these two lists and see if you find ... | |
| Greenland atmospheric pressure | 10/20/2008 |
| Q: Donald On the synoptic charts of the North Atlantic I've noticed a regular anomaly in the pattern of ... A: The "Greenland High" along with "Katabatic" winds are responsible. The high pressure is inland and ... | |
| Wind and Humidity | 10/17/2008 |
| Q: I'm in middle school and have the following question. Can you feel humidity more when it's windy or ... A: A very good question! When it's windy a person feels the humidity less. The reason is that wind ... | |
| Pacific Ocean | 10/15/2008 |
| Q: We are crossing the Pacific from San Diego to Hawaii this Nov. 7 - 22. 4 days crossing each way. ... A: Looking at the sea surface temps now: http://www.osdpd.noaa.gov/PSB/EPS/SST/data/FS_km50f300.gif ... | |
| Barometric pressure | 10/14/2008 |
| Q: I just purchased a Highberr watch/barometer/altimeter. I need to set the barometer so the altimeter ... A: If the watch shows 1013 and it's not 10:13 am or pm then it would be 1013 millibars. Most altimeter ... | |
| To calibrat A PRH gauge | 10/11/2008 |
| Q: I would like to know how to properly calibrate my percent relative humidity Indicator. A: If you mean mechanically I'd need to know the manufacturer and model number. If you mean where to ... | |
| wedding | 10/6/2008 |
| Q: I am planning to get married on the beach in Sunny Isles, Florida and would like to know which would ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| future weather forcast | 10/6/2008 |
| Q: Getting married in may 2009 (24th or 30th. Traveling to vermilion,Ohio for the ceremony,that will be ... A: The date is too far in the future for an accurate forecast. At this point I would say that both ... | |
| Storms | 10/2/2008 |
| Q: Is there a general direction in which storms come from, and why? A: Excluding local storms like thunderstorms, fifty or so percent of large scale low pressure areas ... | |
| metorology | 9/29/2008 |
| Q: I am 12 and I want to be a meteorologist. What do I have to do like go to collage or what to be one. ... A: Some storm chasers are meteorologists, maybe 30 or so percent. The rest are amateur meteorologists ... | |
| Waves and sea state | 9/27/2008 |
| Q: Where can I find figures about the sea state and waves and wind, including statistics, in the Gulf ... A: See if any of these help: http://www.ndbc.noaa.gov/maps/WestGulf.shtml ... | |
| metorology | 9/27/2008 |
| Q: I am 12 and I want to be a meteorologist. What do I have to do like go to collage or what to be one. ... A: Well, if you want to be a weather forecaster or a research meteorologist you would need to go to ... | |
| reddish brown dust | 9/22/2008 |
| Q: Last October I started seeing a reddish brown dust everywhere especially on the trees. It only goes ... A: My guess is red soil drying out and being blown some distance from a farm; or, red ash from a ... | |
| cruising to hawaii Sept 24, 2008 | 9/21/2008 |
| Q: We are leaving this friday to cruise to hawaii from san diego. Can you tell me average sea day ... A: The sea surface temps for Hawaii this week are around 27 degrees Celsius: ... | |
| Blank Weather Charts | 9/20/2008 |
| Q: I am looking for CONUS Plotting charts so I can plot upper-air obs. Also looking for Skew-T diagrams ... A: The internet has made printed blank weather maps a thing of the past. However, see if these links ... | |
| Rainfall in IL | 9/19/2008 |
| Q: I have been searching the internet endlessly and cannot find the following answer to theAbout how ... A: The 13th: 2.82" ... | |
| hurricanes | 9/12/2008 |
| Q: do hurricanes strengthen or down grade when they make landfall? A: Typically they decrease in intensity for two reasons, the hilliness of land compared to ocean ... | |
| Clouds | 9/10/2008 |
| Q: Why don't clouds disperse into the sky, but instead stay within a clear boundary. I would expect ... A: A very good question! The formation of a cloud is due to a vertical updraft with cooling of the ... | |
| rainfall measurement | 9/8/2008 |
| Q: Can you please explain how total rainfall is calculated in inches? I always believed you just had ... A: Different containers are used but with straight side containers you can use just a ruler to get an ... | |
| clouds | 9/1/2008 |
| Q: Why do clouds have flat bottoms? A: There is moisture in the form of water vapor in the air; when water vapor condenses into water ... | |
| Weather on 10.5.08 | 9/1/2008 |
| Q: My wedding is Oct 5, 2008 in New Rochelle NY. What will the weather be? Please advise. Thank you. A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| mexico | 8/30/2008 |
| Q: we r going to cancun on the 8th of sept for 2 wks, can u tell me if there are any reports on ... A: The Atlantic and Gulf of Mexico have become active with respect to hurricanes. That said, the mean ... | |
| tropical storms / hurricanes | 8/29/2008 |
| Q: Recently, 'Fay' moved from land to ocean several times. If storms pick up moisture and energy while ... A: All rain drops have a nuclei that the water vapor condenses on. Rain from the ocean has a greater ... | |
| Meteorology | 8/27/2008 |
| Q: I am leaving for Cuba soon and I am worried that due to hurricane Gustav I will not see any sun for ... A: It looks like Gustava will be near Havana on the 30th so flights may be cancelled. From the 31st on ... | |
| altitude | 8/25/2008 |
| Q: why is it colder at high altitudes? A: As you go higher the molecular action of colliding molecules decreases as the air thins out ... | |
| MOON PHASES | 8/25/2008 |
| Q: My son is in the 4th grade, and for his science fair project he is looking at the phases of the moon ... A: Personally, I do not believe phases of the moon have any impact on the weather. But, here are some ... | |
| jason banjo barometer, Hydrometer | 8/21/2008 |
| Q: I just moved and the house we bought has this Jason Barometer, hydrometer. it doesn't seem to be ... A: First, it's not a bother! The association with the wording on a barometer and the actual weather is ... | |
| SO CLOUDY 2 | 8/21/2008 |
| Q: I was wondering would you please tell me: does lighting come with thunder? Thanks ANSWER: Hi ... A: Lightning is an equalization of electrical charges of different polarity; i.e., a cloud may have a ... | |
| 30% Chance of Rain | 8/18/2008 |
| Q: I know you provided an explanation of this, but I want to verify. In layman terms. I was informed by ... A: Here's the deal on this: To me, a "40% chance of precipitation" means the following: 1. If you are ... | |
| cold fronts | 8/15/2008 |
| Q: What is the definition of a "cold front"? A: A cold front is the dividing line between a colder air mass and a less cold air mass. A front is ... | |
| furrow clouds mackarel sky | 8/14/2008 |
| Q: Can you advise how this cloud formation relates to Queensland Australia. The site you refer to ... A: Mackerel sky refers to altocumulus clouds that orients into "streets". It is a precursor cloud to ... | |
| WX Trends | 8/10/2008 |
| Q: It seems to me that this has been an exceptionally cool summer for this part of the country ... A: Here's how the weather bureau in Taunton MA describes it: Excerpts from: FXUS61 KBOX 100220 AFDBOX ... | |
| light rays in east during sunset! | 8/8/2008 |
| Q: The sun was setting in the west & there were light rays emanating from the mountains in the east. ... A: Looking at your photo I was sure that the sun was behind those mountains and that the sun was ... | |
| WX Trends | 8/8/2008 |
| Q: It seems to me that this has been an exceptionally cool summer for this part of the country ... A: You are correct that parts of the east coast have been cooler than normal. The cause has been a pool ... | |
| light rays in east during sunset! | 8/7/2008 |
| Q: The sun was setting in the west & there were light rays emanating from the mountains in the east. ... A: Your photo: http://www.playzar.com/panos/EastRays9sm.jpg shows Crepuscular rays! Here's more info ... | |
| Meteorology | 8/6/2008 |
| Q: What are the main advantages of an infrared satellite image versus a visible satellite image for ... A: A very good question! Infrared gives a meteorologist cloud & sea temperatures and the visible gives ... | |
| 30% Chance of Rain | 8/6/2008 |
| Q: I know you provided an explanation of this, but I want to verify. In layman terms. I was informed by ... A: Here's the deal on this: To me, a "40% chance of precipitation" means the following: 1. If you are ... | |
| Sunset time | 8/4/2008 |
| Q: I am getting married on Oct. 18, 2008 and I was wondering if you could tell me when the sun would ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Past world climate changes | 8/1/2008 |
| Q: I am interested in the history of climate change and looking for resources which explain, for ... A: Here's a time line of temperature change: ... | |
| force of wind | 7/28/2008 |
| Q: I have a question about the force of wind. Is there an equation that factors in air pressure in ... A: See if these help: http://tinyurl.com/wind-pressure ... | |
| 8-9-08 will it rain | 7/21/2008 |
| Q: trying to plan an outdoor party on 8-9-08 will it rain or shine A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Meteorology | 7/20/2008 |
| Q: It seems to be acknowledged that with global warming storms will be more severe. I presume that ... A: First of all, only a minority of meteorologists ascribe to the belief that tropical storms will be ... | |
| Lightning | 7/14/2008 |
| Q: As a photographer in the Tampa Florida area, I have always wanted to capture a great lightning shot. ... A: Barometric pressure is not an advance or even within-the-event indicator in that the thunderstorm is ... | |
| Lightning | 7/14/2008 |
| Q: As a photographer in the Tampa Florida area, I have always wanted to capture a great lightning shot. ... A: There are more lightning strikes in the front and mid parts of a thunderstorm. The higher the ... | |
| lightning | 7/11/2008 |
| Q: How many different kinds of lightening are there? Thank you A: Here's a list: cloud to cloud cloud to ground ground to cloud heat lightning ball lightning sprites ... | |
| Hurricanes | 7/11/2008 |
| Q: I am a lay weather speaker, focusing primarily on weather folklore, mythology, and weather humor, on ... A: Looks like the Britannica info came from: ... | |
| lightning | 7/10/2008 |
| Q: Is it possible to have lightening without thunder? Is it possible to have thunder without ... A: There is a form of lightning call "heat lightning" which is lightning at a great distance that can ... | |
| East River winds | 7/8/2008 |
| Q: I am an author. As part of my research, I need to understand the wind patterns along the East River ... A: Wind patterns at the surface? Or, aloft? If aloft, what level. Also, a specific date, all days or ... | |
| July 19th, 2008 Wedding | 7/7/2008 |
| Q: I am getting married on Saturday, July 19th in the evening in the Boston Area (zip 01810). We have ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Surface Analysis | 7/3/2008 |
| Q: I am studying meteorology as an undergraduate, and I just wanted to ask how I can improve my skills ... A: The more you practice the better you'll get! Here are some resources: ... | |
| Weather in water world | 7/1/2008 |
| Q: Good day. I've been studying weather systems for a "world building" project and I started wondering ... A: Very good questions! If the earth had no land the surface would be flat water and winds would blow ... | |
| Weather | 7/1/2008 |
| Q: I am wanting to hold my sons birthday party in our garden with his water park out but am worried it ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| weather watches | 6/28/2008 |
| Q: I have always wanted to know how meteorologists decide whether to issue a severe thunderstorm watch ... A: A very good question! Take a look at: http://www.theweatherprediction.com/habyhints/287/ ... | |
| lenticular cloud formation | 6/24/2008 |
| Q: In reading about lenticular clouds, I get the impression that they only form in areas where there ... A: Personally, I think the ground view is more serene but the air craft view can be more dramatic. As ... | |
| storms | 6/23/2008 |
| Q: I'm Mark. I was wondering what the weather, precip and temp outlook for the southeast and South ... A: It looks like continued drought conditions. The following links will give you more info: ... | |
| wet depressing weather | 6/21/2008 |
| Q: we had a brief week or two in may and so far we havent had a summer. will we get decent weather we ... A: Take a look at: http://www.weatherknowledge.com/long_range_forecast.html and choose "World ... | |
| lenticular cloud formation | 6/21/2008 |
| Q: In reading about lenticular clouds, I get the impression that they only form in areas where there ... A: Some times an atmospheric gravity wave can cause the type of clouds you describe: ... | |
| meteorology/Forecasting | 6/20/2008 |
| Q: Mr. Rosenfeld, I would like to know if,when you are forecasting,there is a set pattern? For example, ... A: I would say that I always use upper air info but I do forecast different type weather events ... | |
| Barometric Changes and Electromagnetism | 6/15/2008 |
| Q: As with many others, I experience substantial discomfort as the barometer makes rapid changes. I ... A: It is known, as you point out, that changes in atmospheric pressure do effect discomfort levels in ... | |
| Weather | 6/9/2008 |
| Q: can you give me your prediction of weather for June 21, 2008 for Hartford, CT A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| South Ontario | 6/5/2008 |
| Q: Hey, my friend recently told me that the Great Lakes prevents tornadoes in South Ontario. I am in ... A: Generally speaking there are less tornadoes near large bodies of water. Why? Because the water acts ... | |
| forecast for Eskridge, KS 6/5/08 | 6/5/2008 |
| Q: We currently have our roof uncovered and we need to know how severe the weather will be in the next ... A: Here is a technical discussion from NOAA Topeka office and they are forecasting thunderstorms ... | |
| time weather to travel across USA | 6/3/2008 |
| Q: How long does weather take to travel across the USA from west to east coast? A: Depends upon the season, the jet stream and the part of the country. Winter is faster because the ... | |
| Severe Weather | 5/29/2008 |
| Q: 1) How does a forecaster distinguish between linear storms and super cells. On a SPC discussion ... A: Linear storms are straight moving and smaller than super cells. Storms convert to different types ... | |
| July 19th | 5/28/2008 |
| Q: I was just curious as to what the weather will be like on July 19th, 2008 in central PA. Thanks! A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| storms innNew England | 5/27/2008 |
| Q: I thought all wind was described as a westerly if it comes ou of the west, a southeasterly of the ... A: Winds are described by the direction they are coming from- as an example, northwesterly or westerly. ... | |
| June 10th | 5/27/2008 |
| Q: I am going to the prom on June 10th, would you be able to predict the weather for this day so that I ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Reno/Nevada | 5/24/2008 |
| Q: I am planning a wedding June 7, 2008 and while it has been rather stormy here (Reno NV) the past few ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Raindrop size | 5/23/2008 |
| Q: Is that true rain drops sizes are different in different areas for example fine drops in cold ... A: It is true that different parts of the world have different raindrop sizes on average. There are ... | |
| prediction of weather June 21, 2008 | 5/20/2008 |
| Q: How does it look for riverside county, california on that day, specically Lake Elsinore? Thanks A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Upper & Lower Lows/Highs | 5/19/2008 |
| Q: I read frequently about Upper Lows etc. Looking at 500, 700 Mb charts, I do not see Lows, but the ... A: The simplest way to find a low pressure at elevation is to look for a closed isopleth ... | |
| Global warming | 5/16/2008 |
| Q: I'm Mark. I was wondering what the weather, precip and temp outlook for the southeast and South ... A: South Carolina is still in a drought in the western sections of the state: ... | |
| Projected weather forcast for 6/13-6/14, 2008 for Lewes DE | 5/15/2008 |
| Q: 2008 in Lewes De. Any forcast projections? Thanks A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| weather for June 1, 2008 | 5/14/2008 |
| Q: Any way you can tell what the weather will be for Sunday, June 1, 2008. Thanks, BS A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| weather | 5/10/2008 |
| Q: I'm Mark. I was wondering what the weather, precip and temp outlook for the southeast and South ... A: I recently had a request that had similiar questions, here is how I responded:What is the May and ... | |
| I know it's a long shot | 5/8/2008 |
| Q: I know it's a long shot but I was wondering if there is any way of predicting the weather for the ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Weather on July 24, 2008 | 5/7/2008 |
| Q: I am planning an outdoor wedding on July 24th in Centerport, Long Island. Can you tell me what to ... A: For sunset info, see: http://aa.usno.navy.mil/data/docs/RS_OneDay.php As to the weather forecast: ... | |
| cyclone | 5/7/2008 |
| Q: What is a CYCLONE?? Is there a difference in a cyclone and a tornado?? Also.....I'm getting ... A: There are four different cyclones- all are low pressure areas (meaning that the atmospheric ... | |
| weather patterns and predictions | 5/6/2008 |
| Q: What is the May and June outlook for the southeast united states? What about the Summer Months? Is ... A: May & June look warm and humid; the summer months just look warm. May should be stormier but June ... | |
| weather | 4/28/2008 |
| Q: What is the May outlook for the southeast united states? What do you think is going on with global ... A: I think cooler & wetter than normal; here's what NOAA thinks: ... | |
| future weather | 4/28/2008 |
| Q: i am getting married on the 24 of may 2008 in Saskatoon Saskatchewan Canada i would like to have an ... A: The date is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Tornados | 4/26/2008 |
| Q: I like in Sheboygan,WI about a quarter mile from Lake Michigan, and we are in the storm season, ... A: Generally speaking there are less tornadoes near large bodies of water. Why? Because the water acts ... | |
| Snow reflection of light | 4/23/2008 |
| Q: Why is it so light out at night when there is snow covering the ground? A: Snow being composed of crystals has high reflectivity which means any light hitting a snow surface ... | |
| future weather | 4/21/2008 |
| Q: What will the weather be like June 7, 2008 in Stockton, CA? A: June 7th is too far in the future for an accurate forecast. Forecasts of between 4 and 7 days can ... | |
| Hurricanes | 4/21/2008 |
| Q: How do hurricanes form, how can you track them and how can find the latest information? A: Hurricanes form from thunderstorm clusters in the tropical Atlantic which develop spin from coriolis ... | |
| wedding weather | 4/19/2008 |
| Q: I'm getting married June 28, 2008. It will be a evening candelite ceremoney starting at 8pm. I ... A: An accurate forecast is only possible a few days in advance and if you re-ask a few days before the ... | |
| May prediction | 4/7/2008 |
| Q: I am trying to plan an outdoor birthday party for my daughter for either May 10 or May 17. Trying ... A: Mid May is too far in the future for a good forecast; that's only possible several days in advance. ... | |
| weather future forecast | 4/7/2008 |
| Q: I have an event morning till early afternoon May 10, 2008 in Pomfret Connecticut. Was wondering if ... A: Since the info is based on climatology data from Hartford and Pomfret is about 30 miles to the ... | |
| elevated convection via radar imagery | 4/3/2008 |
| Q: Is there a different signature on WSR-88D reflectivity products pertaining to elevated/dynamic ... A: Well, there is the intensity difference at different elevations. There is also the degree of ... | |
| Is the wet bulb temperature the same as the dew point? | 4/3/2008 |
| Q: Is wet bulb temperature the same as the dew point? A: A very good question! The answer is that it is not the same; see: ... | |
| wedding weather | 4/3/2008 |
| Q: I was wondering if you could give me a BALL PARK figure on what the weather might look like for an ... A: Looking at: http://www.cpc.ncep.noaa.gov/products/people/wwang/cfs_fcst/images/usT2mMon.gif and ... | |
| forecasting accuracy | 4/2/2008 |
| Q: I am trying to do a statistical analysis of the relative accuracy of modern forecasters compared to ... A: There are two types of forecasters: Private meteorologists who work for industry and the government ... | |
| Weather prediction | 4/1/2008 |
| Q: A couple of questions about weather prediction (a subject I know nothing about). [1] I can imagine ... A: Your method under # 1 is called analog forecasting; it's based on actual weather patterns that have ... | |
| clouds going up | 3/26/2008 |
| Q: Do individual clouds ever rise above the altitude where they formed? I don't mean like a thunderhead ... A: Clouds form when moisture is lifted into a cooler level of the atmosphere. But, your question is: Do ... | |
| Thunderstorm down-draft temperatures | 3/23/2008 |
| Q: Sinking air warms, yet thuderstorm downdrafts are usually cold, why? A: There is a atmospheric process called "adiabatic heating" which occurs when air is forced to ... | |
| What numbers denote high barometric pressure? | 3/20/2008 |
| Q: I suffer from migraines, some of which are caused by high barometric pressure. I live on the bay in ... A: Normal barometric pressure at sea level is 29.92 inches of mercury. Any pressure reading higher is ... | |
| weather patterns | 3/18/2008 |
| Q: What is the spring and summer outlook for the southeast? Suppose you live in a certain area and you ... A: Is our climate becoming warmer or colder? In the recent past it has been getting warmer, recent ... | |
| weather | 3/17/2008 |
| Q: What is the spring and summer outlook for the southeast? Suppose you live in a certain area and you ... A: NOAA has issued the following predictions for the SE US for this spring & summer: PRECIPITATION: ... | |
| weather sayings | 3/14/2008 |
| Q: Can you tell me the meaning of these weather sayings for my grade 6 project and have to write 3 ... A: Ants run faster when the temperature increases- "Mercury" is, in this case, the mercury in a ... | |
| Meteorological Question | 3/13/2008 |
| Q: When rain freezes, it is called sleet. When dew freezes, what is it called? This frozen dew has ... A: When rain falls on a surface that is below freezing the rain will freeze on that surface and is ... | |
| weather pattern | 3/10/2008 |
| Q: what is the Bahamas weather pattern A: Right now there is a high pressure just to the north west causing northeast winds and cool ... | |
| humidity | 3/9/2008 |
| Q: Sir, I have a project for school. I am in the fifth grade. I have done all my resarch and am looking ... A: One sentence is hard to do but, here's my attempt: Humidity is a measure of the amount of moisture ... | |
| Meteorologist | 3/5/2008 |
| Q: My name is Otis and I am in the sixth grade. I am doing a project for Science class. I would like to ... A: A meteorologist either studies the atmosphere (weather) or makes forecasts of what the weather will ... | |
| Weather website | 2/26/2008 |
| Q: I am looking for a website in which I will see some temperature averages in a specific place, in ... A: I know a site that will gave average monthly temperatures but not for a given year: ... | |
| Rain Shadow | 2/24/2008 |
| Q: under what circumstances can a rain shadow be formed on the western side of a mountain range? A: When the prevailing (average wind) brings moisture that rises on the the mountain side, the rain ... | |
| coastal weather | 2/23/2008 |
| Q: i live in grand bay alabama. i hear alerts on the weather channel about inland freezes or coastal ... A: My definition would be anything "coastal" is at the coast (within 1/2 mile). Eight miles inland ... | |
| lightning formation and clouds | 2/21/2008 |
| Q: My 8th graders have asked me, "if lightning is formed by the water droplets colliding and creating ... A: That is a good question! And, one that I've not heard before!! First of all, there is no lightning ... | |
| Green light in a thunderstorm | 2/19/2008 |
| Q: I live in southeast Texas and earlier this evening a severe storm went through my area. We were ... A: Well, you have a few choices: A. If there were enough twilight, some times you can have the ... | |
| equator, doldrums, hurricanes | 2/18/2008 |
| Q: While net surfing I ran across a page concerning weather patterns at zero degree latitude by a ... A: You must be talking about Gary Barnes: http://www.soest.hawaii.edu/GG/ASK/hurricanes.html ... | |
| ring around moon | 2/16/2008 |
| Q: ring around moon distinct tonight in Vero Beach, FL, what is the phenomena? A: Looking at the water vapor satellite image: http://www.ssec.wisc.edu/data/g8/latest_g8wv.gif and ... | |
| knowledge | 2/12/2008 |
| Q: what is the definition of weather! A: Weather is the short term variability of the earth's atmosphere. The dictionary defines it thusly: ... | |
| humidity-dew point | 2/12/2008 |
| Q: what is the difference between humidity @ dew point @ how are they figured ANSWER: Hi Loretta ... A: There are tables and graphs available on the internet but to actually figure out the humidity or dew ... | |
| Pacific Ocean | 2/10/2008 |
| Q: Rosenfeld, I am considering a cruise from either the Los Angeles or San Diego are to Hawaii. We ... A: October would be best but November should be ok while December is more prone to winter type storms ... | |
| Can tornadoes occur in winter? | 2/10/2008 |
| Q: We live slightly northeast of Pittsburgh, PA, and we experience some windy weather, but what we ... A: Looking at the observation from Pittsburgh: http://www.srh.noaa.gov/data/obhistory/KPIT.html the ... | |
| Weather | 2/8/2008 |
| Q: How does air temperature and air pressure affect weather? A: Your question is too general for a good answer. A general answer would be: Air temperature decides ... | |
| Natural Disasters | 1/30/2008 |
| Q: Can tornadoes suck up people? Why don't hurricanes hit California? Does it get foggy when a tornado ... A: Tornado winds have lifted up people. The mean upper air flow is from east to west that takes the ... | |
| Job in meteorology | 1/23/2008 |
| Q: Rosenfeld, I am writing on behalf of my brother, who got his masters degree in atmospheric science ... A: I don't know of any head hunters that specialize in meteorology jobs. I would look at: ... | |
| Weather | 1/23/2008 |
| Q: My question deals with how hot and cold days are in relation to the length of the day. I am from ... A: Good question! The answer is that there is a overlap extension because of the thermal build-up of ... | |
| future weather | 1/9/2008 |
| Q: Can you tell me what the weather will be in NSW Australia on 3rd February 2008? A: It's too early to give you an accurate forecast. If you ask again around the 20th of January and ... | |
| Dew Point | 1/6/2008 |
| Q: When I go to weather dot com I get my local weather. It shows, dew point, humidity, chance of rain, ... A: Dew point is the temperature at which dew (condensation) would form on an object out-doors. For an ... | |
| Wind-Chill factor | 1/3/2008 |
| Q: Let's sy that the temperature is x, the wind speed y, and the wind-chill z. If I understand, z is ... A: Wind chill is the effective (what you feel) temperature cause by evaporational cooling by the rate ... | |
| Normals of SLP and Upper Winds | 12/29/2007 |
| Q: Kindly help me getting Normal Surface Pressure Pattern and Upper wind pattern at 850hPa, 700hPa, ... A: For surface pressure, take a look at: ... | |
| precipitation | 12/27/2007 |
| Q: I visit this site quite often & I have few questions regarding weather details shown on most of the ... A: The 6 variables are: wind, temperature, precipitation, humidity, barometric pressure and geographic ... | |
| Halo | 12/24/2007 |
| Q: How often do Halo's appear, Just saw one at about 1:38AM 12/24/2007. Beautiful A: Halos appear when there is a thin layer of ice crystals in line with your vision and the moon or ... | |
| Much Fog in plain area rather than hills | 12/19/2007 |
| Q: Why there is too much fog in plain area or open area as compared to area which are very near to ... A: Mountains and hills have down drafts which bring drier air to the surface thus reducing fog. Fog in ... | |
| Colder winters with more snow in NA? | 12/14/2007 |
| Q: My question is; As the Northern ice cap continues to melt more surface water is exposed, will this ... A: My opinion is that more melting with more evaporation will cause more clouds which will increase the ... | |
| Barometric Preassure | 12/12/2007 |
| Q: I have been looking all over the web for an answer so maybe you can help. I work for a window manuf. ... A: If several homes in a given area are experiencing this type of breakage, it could mean a settlement ... | |
| Weather | 12/12/2007 |
| Q: What would happen if a tornado, hurricane and thunderstorm hit a city at the same time for three ... A: Well, it has never happened as far as I know. A hurricane could stall for three days and spawn ... | |
| protractor anemometer | 12/12/2007 |
| Q: I am working on a science project about anemometers. I have built a velocity anemometer that is a ... A: A protractor anemometer is based on wind force. The weight of air along with the speed of the air ... | |
| Greenland | 12/11/2007 |
| Q: Living in Ireland I have studied the North atlantic surface pressure charts issued by the British ... A: Because of the very cold air from the ice sheet over Greenland: ... | |
| First Grade Activity: Rain in a Bottle | 12/11/2007 |
| Q: Our first grade science book recommends an activity in which we put 1 tablespoon of water in a clear ... A: Some of the condensation may run back to the bottom or the temperature of the air in the bottle may ... | |
| The smell of snow | 12/7/2007 |
| Q: I can smell approaching snow on the wind. Why does crystallized water have a smell? I grew up in ... A: You have a good sense of smell! Some of the chemicals that can be in snow are: Nitrogen dioxide, ... | |
| fog | 12/6/2007 |
| Q: what is fog and how does it form A: Fog is composed of small water droplets, like a cloud, that is located near the ground. It forms by ... | |
| water and atmospheric pressure | 12/3/2007 |
| Q: What is an fairly simples experiment that I can show 4th and 5th graders to help explain/demonstrate ... A: Water is on the earth and in the air via water vapor, water droplets, or rain/snow. These links ... | |
| evaporation | 12/2/2007 |
| Q: ok i am doing a science fair research paper on evaporation.So i would greatly appreciate it if you ... A: The rate of evaporation is a function of temperature, humidity and wind speed. Higher temperature ... | |
| safety of camping in thunderstorms | 11/30/2007 |
| Q: The question I have is about lightning and the safety of being outside during a thunderstorm. I am ... A: Machu Picchu is known for thunderstorms with lightning. July and August are considered the better ... | |
| Tropical Cyclone forecasting | 11/30/2007 |
| Q: I am doing a report on tropical cyclone forecasting and I have a few questions on topic. 1) What ... A: The best way for meteorologists to forecast the future track of a tropical storm is to use upper air ... | |
| Pressure and rain | 11/26/2007 |
| Q: Hey Donald, just wondering about this pressure thing. Did some reading and it seems that high ... A: A good way to make the association of pressure to weather is to note the pressure and then see how ... | |
| Future Forecast | 11/24/2007 |
| Q: My father and I are taking a trip to the Grand Canyon in the first of May 2008. We are riding our ... A: Based on: http://www.cpc.ncep.noaa.gov/products/people/wwang/cfs_fcst/images/usT2mMon.gif and ... | |
| Snowfall | 11/19/2007 |
| Q: Mr. Rosenfeld, Is it possible to have snowfall when land temperatures are above 32 degree F? A: The short answer is yes! The longer answer: While snow will melt when falling on above freezing ... | |
| Frost Formation | 11/16/2007 |
| Q: How can I predict when forst will form on the golf course? A: The four ingredients for frost are: Calm winds, temperature below freezing at grass level, ... | |
| El Nino | 11/5/2007 |
| Q: Can we predict El Nino using ocean observations? A: Yes; El Nino is caused by a warming of part of the Pacific ocean. Below are some good links to learn ... | |
| weather | 11/2/2007 |
| Q: what does the weather have to do with math A: Math is very important because it's used in measurement of distance and in quantities of ... | |
| Thermal lows | 10/31/2007 |
| Q: I just do not understand what a thermal low or high is. I just don't see these terms in the ... A: The term "thermal low" is used when the heat from the sun, over a desert area, creates a local low ... | |
| Weather | 10/22/2007 |
| Q: I am doing a project for my social studies class and we have to make an island contenint. My island ... A: An island in the Gulf of Mexico would have tropical weather all year around with high humidity and ... | |
| evenings, mornings | 10/19/2007 |
| Q: Mr Rosenfeld: Could you please tell me what is the approximate Time of Day AM and PM, for Early ... A: This is a guess for these because I don't believe there is a special phrase both 10 to 11 pm and ... | |
| Precipitation Event Definitions | 10/19/2007 |
| Q: How much rainfall, over what period of time, is necessary for a rainfall to be classified as a 25 ... A: What you are referring to is major rain events that are classified, for a given location and ... | |
| North South Links | 10/17/2007 |
| Q: Here (Manchester, UK, Northern Hemisphere) we have had variable summers or winters. Some hot, some ... A: The northern and southern hemisphere winters are different and never replicate each other. Here's ... | |
| Magnetic Winter! | 10/14/2007 |
| Q: The Earth's magnetic field is largely responsible for our existence - mainly in diffusing the suns ... A: This is a question that is outside my expertise of synoptic meteorology. However, the following ... | |
| Tropopause | 9/27/2007 |
| Q: I know I've seen the answer to this somewhere, but can't find it. Why does the wind speed decrease ... A: The wind speed does decrease at the tropopause. Why? Because there is very little vertical mixing in ... | |
| sunsets in eastern North Carolina | 9/26/2007 |
| Q: I am a writer working on a memoir of years spent in eastern North Carolina. As I remember those ... A: I think that the sunsets are influenced by the water body to the west and the low hills west of ... | |
| dew | 9/26/2007 |
| Q: Mr Rosenfeld:I'm a Co-Op Weather Observer and I would like to know how can I tell by looking at it, ... A: Light dew would be the grass or object with a minimal amount of dew deposited from condensation. ... | |
| Day In The Life Of A Meteorologist | 9/25/2007 |
| Q: I was wondering just how a typical meteorologist, perhaps working for the NWS, performs his day to ... A: Typically they start with what the atmosphere is doing with charts that show surface isobars winds ... | |
| Furrow Clouds | 9/24/2007 |
| Q: I'm wondering what causes furrow clouds to form or what is the why behind furrow clouds. They look ... A: What you are describing are probably Altocumulus Undulatus clouds: ... | |
| do seasons affect from where a storm comes | 9/21/2007 |
| Q: My child would like to collect precipitation for the next 10 months and test the acidity for a ... A: Glad I was able to help. Seasons are not a predictor of where storms will form; however, in the ... | |
| do seasons affect from where a storm comes | 9/20/2007 |
| Q: My child would like to collect precipitation for the next 10 months and test the acidity for a ... A: To see where the storm came from that caused your daily rain fall, take a look at these links: ... | |
| air temperature & barometric prssure | 9/19/2007 |
| Q: How are air temperature and barometric pressure related? Where can I find information on this ... A: Both air and pressure are related in that they are descriptive elements of the atmosphere. In ... | |
| Local Winds | 9/19/2007 |
| Q: Why do local winds along coast and mountains change daily? I've never understood this A: Local winds, sea breezes or land breezes are determined by the temperature over the water and over ... | |
| ice pellets, hail & sleet | 9/16/2007 |
| Q: what is the diameter of an ice pellet A: An ice pellet is a frozen rain drop and NOT a hail stone. A hail stone has repeated trips up and ... | |
| wind direction indicating position of highs & lows | 9/12/2007 |
| Q: Somewhere I read that if you turn your back to the wind the front will be either to your right or ... A: Winds go around high (fair) pressure areas (anti-cyclones) in the northern hemisphere clock wise and ... | |
| I need help on a homeschooling question | 9/8/2007 |
| Q: I need to know the difference between a mountain breeze and a valley breeze. i would also like to ... A: A mountain breeze is a wind that descends a mountain due to radiational cooling at night- cool air ... | |
| Weather question | 9/6/2007 |
| Q: Help! I thought that there are certain directions weather tends to flow on the North American ... A: Most of the time the winds are from a westerly direction unless a storm is involved. I presume that ... | |
| Hurricane Tracks | 9/5/2007 |
| Q: I was wondering if a hurricane took a track that brought it over a narrow enough section of Central ... A: Looking at: http://www.weatheranswer.com/public/Global_tropical_cyclone_tracks_1985_to_2005__.bmp ... | |
| southwest weather | 8/29/2007 |
| Q: Dea Donald hello, wondr if you can help. I am planning a slightly last inute tip to the US and it ... A: It is true that it has been quite a heatwave this summer in parts of the midwest this summer but by ... | |
| school | 8/26/2007 |
| Q: i was just wondering if you could tell me some types of meteorology. I have a earth science project ... A: There are the following types: Synoptic meteorology which is forecasting the weather. Climatology ... | |
| Weather | 8/26/2007 |
| Q: I read an article entitled "Its not the heat its the Dewpoint." This seems stupid to me when the ... A: The relationship of the temperature to the wet bulb temperature (dewpoint) determines the humidity ... | |
| weather after hurricane | 8/24/2007 |
| Q: I am travelling to Negril, Jamaica tomorrow and am wondering if the daily thunderstorms forecast ... A: The tropics, especially in the summer, are prone to showers and thundershowers, especially in the ... | |
| cause of thunder | 8/24/2007 |
| Q: When I was young I was tought thunder, was two clouds bumping into each other. Is this in any way ... A: Thunder is caused by the explosive heating of the air as a lightning bolt passes through the ... | |
| hurricanes | 8/22/2007 |
| Q: Do hurricanes have the same effect under the ocean as they do above the ocean? A: On top of the ocean are wind driven waves. Below the surface are storm surges that cause water along ... | |
| Early Winter Indicator ? | 8/19/2007 |
| Q: .. In view of the past several weeks of rain and cooler than normal temps in the S.Central ... A: The previous weather underground urls are for local observers who may have records going back into ... | |
| Early Winter Indicator ? | 8/18/2007 |
| Q: .. In view of the past several weeks of rain and cooler than normal temps in the S.Central ... A: On the up coming winter for Texas I have no opinion yet but take a look at: ... | |
| Is it St. Elmo's fire? | 8/15/2007 |
| Q: My grandfather was telling me a story about something he witnessed while watching a thunderstorm ... A: Sounds like an atmospheric mystery!! My guess is that since it occurred near a swamp it was NOT ... | |
| Weather in tundra biomes | 8/14/2007 |
| Q: What is some of the weather information in cold tundra biomes? Namely temperature and precipitation ... A: Temperature, precipitation, humidity, barometric (atmospheric) pressure, and wind speed/direction. ... | |
| How do you calculate the total volumn of annual rainfall? | 8/8/2007 |
| Q: Hope you can help me with my questions. I am trying to write an article for children regarding the ... A: Doing the bathtub calculation: My bathtub measures 5 feet long, 2 feet wide and a foot and a half ... | |
| Who are Beijing trying to kid? | 8/7/2007 |
| Q: It is being reported that the authorities in Beijing are claiming that they intend to make it rain ... A: Cloud seeding is possible and works. I have not heard of a correlation of successful cloud seeding ... | |
| July weather | 8/6/2007 |
| Q: Good Morning, Could you please tell me if there is a site in which I could access past daily weather ... A: Your daughter should be all set using this url: http://tinyurl.com/25lrjs and for other dates: ... | |
| humidity | 7/27/2007 |
| Q: i am trying to design a hibernaculum for bats, and understand that the environment needs to be cold ... A: There are three choices: A. pans of water on the floor B. Daily sprinkling on the outside of the ... | |
| climatic difference | 7/18/2007 |
| Q: Why... 1) Is our summer here in Redmond, Oregon (45th parallel and 2800 feet elevation)so much ... A: This summer the jet stream pattern is such that there is greater warmth in the mid part of the ... | |
| clouds | 7/17/2007 |
| Q: My 5 year old son wants to know, "Why do clouds float when there is gravity?" A: Your son asks a good question! Clouds float because the individual moisture particles are so small ... | |
| The end of a typhoon. | 7/15/2007 |
| Q: I was watching as the typhoon was going along the east coast of Japan (currently live in Yokosuka) ... A: All tropical storms do not like shear which jet streams create. Jet streams also steer storms. Cold ... | |
| Thunderstorms | 7/13/2007 |
| Q: Is it true that thunderstorms that move to the right of the winds aloft tend to cut off the supply ... A: Since the right movers tend to be more severe, they probably would, through their high structure, ... | |
| upper-level troughs | 7/11/2007 |
| Q: What direction will a surface low pressure area move if a deep upper-level trough is to the west of ... A: In the northern hemisphere the general direction most likely to occur is a movement from the ... | |
| Weather in desert biomes | 7/2/2007 |
| Q: What is some of the weather information in hot desert biomes? Namely temperature and precipitation ... A: Hot desert biomes would be characterized as having high temps near 100 F, very low humidity and ... | |
| satellites and reception | 7/2/2007 |
| Q: Not sure if you're the expert to ask - if not perhaps you could direct me elsewhere. There is NO ... A: I am not an expert on satellite reception however you are probably correct that there is a pattern ... | |
| lightning | 6/28/2007 |
| Q: Is it safe to be on a motorcycle in a thunderstorm, provided your feet don't touch the ground? I ... A: Tires do insulate and make a car a safe place to be. A motorcycle does not have a steel cage around ... | |
| Snow/Summer | 6/27/2007 |
| Q: Donald, 1)When forecast in snow events say that ratios/ or rates will increase due to strong ... A: # 1 When conditions are favorable for dendritic snow, the best level is around -15C. ... | |
| people in dust devils, tornadoes | 6/26/2007 |
| Q: and one of my teachers told me that people can go in dust devils, and even showed me a video on ... A: Generally speaking, dust devils will not kill you but flying objects that blow into the air could ... | |
| route 66 holiday | 6/25/2007 |
| Q: four people average age 60 would like to do route 66 next year and we wondered if May was a good ... A: Weatherwise late September would be best. The problem with May is that it is tornado season east of ... | |
| atmosphere | 6/24/2007 |
| Q: I have a grade 5 project to do and one of the questions is "what causes weather ?" are you able to ... A: Differential heating causes pressure changes and wind and all those, with moisture, cause weather. ... | |
| Cause of Lightning & Thunder | 6/22/2007 |
| Q: what causes lighting and thunder A: A build up of a positive charge of electrons compared to the object that is going to receive the ... | |
| Paleo-meteorolgy | 6/10/2007 |
| Q: Doc Rosenfeld, This may fall outside your expertise, if it does tell me. I would encourage you to ... A: You're right, I'm more into current weather than climates of the past. But, see if these links help: ... | |
| barometric pressure | 5/28/2007 |
| Q: I was wondering what is considered high pressure and what is considered to be low pressure? For ... A: Normal sea level pressure is 29.92 inches / 1013.2 pascals; so, anything below that would be ... | |
| High Pressure | 5/22/2007 |
| Q: Why do swallows and flies tend to fly lower before the rain? I thought the air pressure was low ... A: Swallows follow the flies; in storms with strong air currents flies try to stay low to avoid the ... | |
| PRECIPITATION AND ITS METHOD OF MEASUREMNTS | 5/16/2007 |
| Q: A: Precipitation is any form of moisture that falls from the sky. Rain, snow, fog, drizzle, etc. Take ... | |
| Severe Weather | 5/9/2007 |
| Q: Hey Donald, It would be great if you can help me with these few questions that have been bothering ... A: Compared to normal convective thunderstorms MCV's have cold air aloft, vertical share at low levels, ... | |
| Animal behavior and weather | 5/1/2007 |
| Q: I'm doing a science paper discussing animal behavior as it relates to significant changes in ... A: Animals smell changes in ozone level, sense changes in atmospheric pressure, humidity and ... | |
| curious cloud formation | 4/26/2007 |
| Q: I'm wondering if I can get information about a cloud mass I saw. Standing directly under it, it ... A: It was probably a funnel aloft (i.e., a tornado not reaching the ground). For more info, see: ... | |
| when prevailing wind swiches | 4/26/2007 |
| Q: I would like to know about the process of when the prevailing wind changes direction. I am focusing ... A: The name of the game when it comes to sea breezes are the following: 1. Air temperature over the ... | |
| Barometric Pressure | 4/23/2007 |
| Q: If the barometric pressure is above one atmosphere, why does it precipitate more than a barometer ... A: High (fair) pressure areas are associated with less precipitation than low (stormy) pressure areas. ... | |
| Air pressure and health | 4/18/2007 |
| Q: I am currently doing an earth science project that relates to air pressure. I was wondering what ... A: Since the weight of air can exert different levels of pressure on the body it can cause discomfort ... | |
| rainfall in Jamaica in October | 4/16/2007 |
| Q: We are considering Jamaica as a honeymoon destination. Would this be advisable? We will be arriving ... A: It's still hurricane season in October for Jamaica. Any rainfall unrelated to hurricanes is ... | |
| Rogue waves and strong storms | 4/15/2007 |
| Q: Do you think that rogue waves and strong storms that form and dissipate quickly could be fatal or ... A: Rogue waves are so high and abnormal that they have to be the result of powerful large scale storms ... | |
| Snowpack | 4/14/2007 |
| Q: Mr Rosenfeld: This Winter I went 52 days with a continuous Snow cover on the ground. Is this the ... A: Snow pack generally means the snow that remains during the winter between storms. The term is used ... | |
| water barometers and air pressure | 4/12/2007 |
| Q: please would you be able to tell me about the average changes in atmospheric pressure associated ... A: Actually, there is very little pressure change during a thunderstorm- they are considered small ... | |
| temperature inversions | 4/12/2007 |
| Q: Rosenfeld, I am doing research on temperature inversions, and I read that they can be predicted a ... A: Good question! There is very little on forecasting inversions. Take a look at: ... | |
| Barometric Pressure | 4/11/2007 |
| Q: I was wondering, what are the variables that influence (affect) barometric pressure? A: They are basically the same but barometric pressure is the amount of air pressure as shown on a ... | |
| F1 F2 F3 F4 F5 | 4/10/2007 |
| Q: WHAT DOSE THE F IN F1 F2 F3 F4 F5 MEAN? A: The F series is used in rating the severity of tornadoes. F5 is the severest. The link below will ... | |
| Lightning and humidity | 3/29/2007 |
| Q: I was wondering if it was possible for humidity to effect lightning, and if so, how? A: Since water is a conductor of electricity a higher moisture content in the atmosphere would be ... | |
| debate | 3/26/2007 |
| Q: within the earths atmosphere, is it hotter the closer you get to the sun? If not, why? A: As you rise in the atmosphere you get to the thermosphere and that is much hotter than lower ... | |
| Lightning, Phones and High-rise Buildings | 3/24/2007 |
| Q: Is it dangerous to use the phones in a high-rise building? I use a headset at a call center in ... A: Generally speaking, it is dangerous to use a phone (except cell phone) in any building during a ... | |
| weather | 3/19/2007 |
| Q: how does the meteorology know when the weather will change A: Meteorologist use weather maps to forecast the weather. Weather maps show storm and fair weather ... | |
| how does the seasons affect water evaporation | 3/15/2007 |
| Q: Rosenfeld, My name is Isaac and I'm doing a science fair project, and I want to find out how the ... A: Seasons do have an effect depending upon the depth of the water body. Shallower water is more ... | |
| Dock vs ocean temperature | 3/12/2007 |
| Q: can you please explain why the temperature on the west coast, (Canada) can be above freezing but a ... A: A lake or ocean is a large body of water that is associated with high humidity and slow change to ... | |
| tornado power | 3/3/2007 |
| Q: How much "power" is associated with a tornado (like in watts or horsepower), say for an F0 or F1? A: How much power does the strongest tornado have? Answered by: Joe Schaefer, director, NOAA/NWS ... | |
| Humidity and how you feel | 2/28/2007 |
| Q: Interesting, so that's probably why places like Seattle, Washington can have high relative humidity ... A: * my response Interesting, so that's probably why places like Seattle, Washington can have high ... | |
| potatos and weather forcasting | 2/26/2007 |
| Q: Was a potato ever used to forecast the weather? My daughter told me she learned this in school she ... A: There is a saying: "It will be a bad winter if tree bark is heaviest on the north side. Bark on ... | |
| Hurricane eye subsidence | 2/26/2007 |
| Q: I know that hurricanes are powerful low pressure areas in the tropics and that air rises at low ... A: The intense convection in the actual eye wall has components of descending air that occurs on the ... | |
| Humidity and how you feel | 2/24/2007 |
| Q: So to make sure I'm understanding correctly, relative humidity is what makes you feel either dry or ... A: With the colder temperature you'd feel less clammy because at the same time of feeling the humidity ... | |
| ice storms | 2/24/2007 |
| Q: How much Ice has to accumulate on Trees and Wires before they start falling? And does Wind play a ... A: Usually about an inch. Wind does play a big roll. If its windy, ice is broken up on the lines and ... | |
| Question about humidity, dew point temperature, and relative humidity | 2/23/2007 |
| Q: Can you tell me how dew point temperature makes you feel vs. how relative humidity makes you feel? ... A: Relative humidity is a figure that is based on how close the wet bulb temperature is to the air ... | |
| Weather questions from the class! | 2/22/2007 |
| Q: My group of high school life skills students are studying weather. At the end of the unit, I asked ... A: A good teacher makes good students which makes good questions from the class! Does the weather have ... | |
| What's the story on "Dodge" tides? | 2/22/2007 |
| Q: could you please tell me where in the world 'dodge tides' occur, thank you. A: A very good question! I've never been asked that one. A "Dodge tide" is a term to describe a tide ... | |
| To cold to snow? | 2/13/2007 |
| Q: I often hear people say that, "It's too cold to snow". I have also noticed that following snow it ... A: It's never to cold for snow. Snow flakes are smaller and more like ice crystals at very cold ... | |
| Precipitation | 1/31/2007 |
| Q: My question may be worded in such a way that I might not know how to communicate it correctly. Not ... A: A 30 % chance of precipitation means either rain or snow will fall in one third of the forecast area ... | |
| wind gusts | 1/19/2007 |
| Q: I like to develop a model of wind speed vs time for a typical wind gust. Lets say for example the ... A: Instantaneous wind speed measurements in their selves are quite complex from an instrumentation ... | |
| weather/seasons/tilt/sun | 1/17/2007 |
| Q: if the earth is closer to the sun in summer we expect more heating the sea than in winter and more ... A: Let me be more accurate. The closesness is dependent upon the angle of the earth. Winter is when the ... | |
| Earth tilt affecting weather | 1/5/2007 |
| Q: Okay, its no longer private, thanks MarkHi Donald, I am working on a piece of fiction based on an ... A: My guess, calmer weather but major change of temperature distribution south vs northern hemisphere. ... | |
| Inter-action of weather elements | 1/5/2007 |
| Q: Could you please tell me how do temperature, humidity and pressure relate to each other and how ... A: Temperature, humidity and pressure are related especially in storm systems. Low atmospheric ... | |
| What causes weather? | 12/21/2006 |
| Q: What causes weather to change? What can weather be affected by? A: Temperature differences cause all weather. But, those differences cause the lows and highs (storms ... | |
| Cows / methane / global warming | 12/20/2006 |
| Q: Does methane from cows have a significant greenhouse gas effect that ultimately affects our weather? ... A: Yes- methane is a big contributor towards global warming. Take a look at: ... | |
| Thermometer information | 11/30/2006 |
| Q: How is the Thermometer inportant to forecasting the weather,and who is the atual inventor and in ... A: The thermometer was invented by Santorio Santorio around 1590. ... | |
| El nino and mild weather in the northeast | 11/27/2006 |
| Q: Could El Nino have anything to do with the mild weather so far in Massachusetts? By the end of ... A: Most meteorologists would say yes. However, looking at the jet stream pattern and temperatures in ... | |
| Photographing snowflakes | 11/27/2006 |
| Q: I took a picture at nighttime in South Dakota and was wondering why the snowflakes on the picture ... A: You're probably correct as to the clear wet dots. The size does differ both by water content, flakes ... | |
| Comparative climate data | 11/22/2006 |
| Q: Rosenfeld, I love Austin, but the heat, the bright sunshine w/ no clouds to help shade it in the ... A: First, Happy Thanksgiving! The short answer to your question is that Minneapolis is a continental ... | |
| Weather forecasting by air pressure | 11/16/2006 |
| Q: How does the barometric pressure explain weather? A: Low barometric pressure is associated with storms and high pressure is associated with fair weather. ... | |
| Sea level atmospheric pressure by latitude | 11/15/2006 |
| Q: How does sea level atmospheric pressure vary with latitude? I think it is higher at the equator and ... A: In the summer it is higher at the equator but in the winter it is not. Here's confirmation: ... | |
| Hurricane Absurity | 11/13/2006 |
| Q: Several years ago a Hurricane went north to Maine then turned south to cross Florida and eventually ... A: It is not unusual for a tropical storm to make a loop or even move back aways on its own path. But, ... | |
| How do high and low pressure systems form? | 11/11/2006 |
| Q: How are they formed?What causes them to even exist? A: The process is too complex for me to describe without the aid of diagrams. The links below should ... | |
| May 5, 2007 | 11/10/2006 |
| Q: I will be getting married on this date and I would like to know what kind of weather should I expect ... A: May is a good month weatherwise to get married! However, to be specific that far in advance would ... | |
| Acid rain composition | 10/25/2006 |
| Q: I have been wondering if nanotechnogy could help neutralize acid rain in clouds. Do you have any ... A: I haven't heard of any role for nanotechnology in rain (or acid rain) modification. However, maybe ... | |
| Reliability of a weather forecast | 10/24/2006 |
| Q: What determines the reliability of a weather forecast? A: A very good question! Accurate verification is by NOAA observers who measure with accurate ... | |
| HOW TO CALCULATE POUNDS PER SQUAR FOOT | 10/18/2006 |
| Q: WHAT IS THE FORMULA,(IF ANY), TO CALCULATE PONDS OF PRESSURE PER SQUARE FOOT WITH A WIND VELOCITY OF ... A: I don't know what a "18 14" screen is but I assume it is either a 18 X 14 inch or foot screen over a ... | |
| fire weather | 10/16/2006 |
| Q: I am a college student doing a presentation on the weather patterns both causing, and resulting from ... A: I'm not aware that the AMS has any special interest in fire weather. However, the following sites ... | |
| Hail with stone centers | 10/15/2006 |
| Q: No one has been able to answer this in the last several weeks. What phenomenon could cause hail ... A: There are four possibilities which I will list in order of probability: 1. Ice being transported by ... | |
| Why is late spring wettest season? | 10/15/2006 |
| Q: why are May and June the wettest months in the Plains and Midwest? If it's due to the clash of warm ... A: A quick guess would be that the sub tropical jet is more active in the spring. ... | |
| What is the cause of a lightning stroke? | 10/14/2006 |
| Q: what causes lightning to strike between clouds or touch the earth? A: A lightning discharge occurs when there is a significant difference of electrical charge between a ... | |
| Hurricane criteria as to strength and naming | 10/2/2006 |
| Q: What makes a storm a hurricane and why did they name the one in New Orleans Hurricane Katrina? A: A storm is considered a hurricane when the winds in the storm are at least 74 mph and the center of ... | |
| White rain | 10/1/2006 |
| Q: A few years ago I was sitting in a car with my windows open watching it rain. Some rain drops came ... A: Back in 2002 the only thing that I concluded was that the whiteness showed up after mechanical ... | |
| NHC advisory wind field forecasts | 9/17/2006 |
| Q: In NHC advisories on hurricanes, does the distance from the center of the storm that they report ... A: The wind field forecasts are based on distance from the center of the eye. The wind forecasts are ... | |
| Climate information for Washington, DC | 9/14/2006 |
| Q: Good day to you, I am getting ready to move to Washington DC in November and I wanted to know what ... A: A forecast for November, 3 months in advance, would not be reliable. Though, looking at the jet ... | |
| Sun's effect on weather | 9/14/2006 |
| Q: My son is doing a 'research' paper on the following criteria: How does the Earth's tilt effect the ... A: Sounds like a worthy research project!! The distance from the Earth to the Sun is important because ... | |
| A 30% chance of rain means what?? | 9/12/2006 |
| Q: Explain "30% Chance of rain". does this mean an area has a 30% chance that it will rain that day ... A: NOAA defines as: "Precipitation Probabilities (PoP): It is defined as the likelihood of occurrence ... | |
| a question | 9/8/2006 |
| Q: I need to know what the weather forecast was in Daingerfield Texas which is located in Morris County ... A: I believe you're looking for what the observations were om March 6, 2006 at Daingerfield TX: ... | |
| Lightning hit on a lake or ocean | 8/20/2006 |
| Q: I have often wondered if there can be lightning strikes in the lakes or oceans and what would the ... A: Lightning strikes into a water body can kill fish and people- depends upon many variables such as ... | |
| Edgemere PA climatology | 8/18/2006 |
| Q: I am trying to determine the annual rainfall amount in inches for Edgemere, a town in Pike County ... A: The annual precip (rain & snow) averages around 41 inches: http://tinyurl.com/qboe8 You could try ... | |
| Hurricane intensity rating scale | 8/14/2006 |
| Q: During Hurricane Wilma's stint as "the most powerful hurricane in Atlantic history" with a pressure ... A: There is a new measuring stick being used to rate hurricane seasons and individual storms; it's ... | |
| Lightning in Hong Kong and lightning safety | 8/10/2006 |
| Q: I would like to ask for the Thunderstorm days per year in Hong Kong. Also I would like to ask if ... A: The average is about 49 days per year: http://www.hko.gov.hk/cis/statistic/lgday_statistic_e.htm ... | |
| Can you make it rain inside a building? | 8/8/2006 |
| Q: Can a person make it rain inside his/her house? Why or why not? Thank you for your help. A: To get "rain" you must have several factors at work; one way is the Bergeron process: ... | |
| Cause of seasonal weather patterns | 8/7/2006 |
| Q: what could be some reasons for experiencing strabnge weather patterns in los angeles, such as record ... A: The cause of seasonal weather patterns are the positioning of the jet stream. So, if the jet stream ... | |
| Weather in Grand Cayman August 4th-12th 2006 | 8/3/2006 |
| Q: My family is traveling to the Cayman's from the US. Are trip is scheduled from Aug.4 - Aug.12. We ... A: Tropical storm Chris has been weakening but should impact the Cayman's on the 5th & 6th with showers ... | |
| Weather forecast for a year in advance | 8/2/2006 |
| Q: I know this is a long time from now but I am planning a wedding for July 28, 2007. The wedding will ... A: It is not possible to give an accurate forecast beyond a couple of weeks. Your best bet would be ... | |
| Lightning | 7/29/2006 |
| Q: what is the record for the most lightening strikes with in hour, and where was it. A: I don't believe anyone knows the answer to that question. However, the place with the most lighnting ... | |
| Global Warming as it affects the ocean height | 7/27/2006 |
| Q: all the global warming weather people keep mentioning the expansion of the oceans due to heating. I ... A: A difficult question(s)! Before I try to figure out the answer let me say that glacial melting ... | |
| drought and global warming | 7/25/2006 |
| Q: There is much concern about drought caused by global warming. Wouldn't there be more rain, though, ... A: A very good question! The answer is yes and no though. Why? As the evaporation increases, even ... | |
| Green lightning | 7/24/2006 |
| Q: Yesterday my roommate and I observed a severe storm with bolts of lightning and also what looked ... A: Most likely you were seeing power lines shorting out with the ground as they fell and the flashes ... | |
| weather for August 2007 | 7/23/2006 |
| Q: Hello I am getting married on August 18 2007 I live in Euclid Ohio and are weather is often very ... A: It is not possible to give an accurate forecast beyond a couple of weeks. Your best bet would be ... | |
| weather July 2007 | 7/22/2006 |
| Q: Please give me all Sat. nights for 2007 in July where I will have good weather...I have had a party ... A: It is not possible to give an accurate forecast beyond a couple of weeks. Your best bet would be ... | |
| Where does lightning come from? | 7/20/2006 |
| Q: Me and my boyfriend both have different oppinions on where lightening comes from, I say from the ... A: You're both right! Different lightning bolts can come from the ground to cloud, cloud to ground or ... | |
| Antarctic peninsular - weather and daylight | 7/20/2006 |
| Q: I am writing a screenplay and a part of it is set on the Antarctic Peninsular from November to ... A: Here are a few links that should give you a good idea about the weather & climate of the Antarctic: ... | |
| strange lightning | 7/19/2006 |
| Q: Last night (1am est) Our town of Eastham, MA was hit by a very strong thunderstorm. 10 minutes into ... A: You ask a hard question because many odd things happen when it comes to lightning! I watched the ... | |
| Marine Air and Thunderstorms | 7/19/2006 |
| Q: Can marine that invades during a heat wave inhibit thunderstorms? A: Marine air is stable air which inhibits and/or diminishes the intensity of thunderstorms. However, ... | |
| heat index | 7/19/2006 |
| Q: What is a heat index? what does it indicate? A: A heat index is composed of the interaction of temperature and humidity to give a measure of human ... | |
| wedding weather | 7/18/2006 |
| Q: You must get alot of these. I am planning on having a wedding in Marblehead, MA- one of the most ... A: It is not possible to give an accurate forecast beyond a couple of weeks. Your best bet would be ... | |
| power of the sun | 7/18/2006 |
| Q: On one day it can be 25oC, clear blue sky, no wind. And a week later it can be exactly the same ... A: While the conditions at the surface of the earth may be the same the difference is in changes at ... | |
| Is global warming caused by people? | 7/17/2006 |
| Q: i was wondering how do we know that the global warming is caused by humans and not a natural earth ... A: Here is a link that shows there is global warming: http://tinyurl.com/mewlc and a link that shows ... | |
| Force of wind | 7/8/2006 |
| Q: How could I convert wind speed, to show how much force it has, like in newtons? Like if the wind ... A: Here is a formula for "Newtons": http://www.physicalgeography.net/fundamentals/7n.html ... | |
| Does a Northerly wind come from the north? | 7/8/2006 |
| Q: My question is this: What does "northerly" mean? Every dictionary I have seen lists two definitions. ... A: A "Northerly" winds means a wind from a northerly direction- typically from the north but could be ... | |
| Weather forecast for a year in advance | 7/6/2006 |
| Q: What kind of predictions are there for the weather on July 7, 2007 in Baltimore, MD? I have an ... A: It is not possible to give an accurate forecast beyond a couple of weeks. Your best bet would be ... | |
| Traverse City Michigan Climatology information | 7/4/2006 |
| Q: Can you tell me what the average number of sunny days for Traverse City is? Also, how many tornado ... A: Take a look at the "cloudy day" chart at: http://www.city-data.com/city/Traverse-City-Michigan.html ... | |
| Global warming - is it real? Other questions. | 6/28/2006 |
| Q: Do you believe global warming is actually occurring? What do you believe as the top factor ... A: A couple of weeks ago I was asked the same question, so I'm copying my answer here: The question of ... | |
| Tropical Storm ocean smell | 6/28/2006 |
| Q: I live in central (near Charlotte) NC. Why does the air/rain from a so-called "tropical storm" ... A: Since tropical storms/hurricanes form over the ocean, they have their moisture derived from salt ... | |
| How far away does lightning strike & I can still see it? | 6/27/2006 |
| Q: How far does ligtening strike? Is it true it can strike up to 10 miles away? A: Some types of lightning, such as heat-lightning and sprites can be seen 100's of miles away. Local ... | |
| Weather (Week of 6/25/06) NJ | 6/24/2006 |
| Q: Mr. Rosenfeld, My family and I have slotted a week-long trip to Toms River, NJ (beginning Monday ... A: That forecast means that there are chances for afternoon showers or thunderstorms but they will be ... | |
| hurricane season 2007 | 6/22/2006 |
| Q: Mr. Rosenfeld, My sisters are planning on taking me on a trip next Aug. for my 40th birthday. I ... A: A year in advance for hurricane forecasting is too far for accurate forecasting! However, August is ... | |
| Pittsburgh Weather | 6/14/2006 |
| Q: Mr. Rosenfeld, I'm writing for The Pitt News this summer, and the current story I'm working on is ... A: All good questions! 1.) Do Pittsburgh's three rivers (Monongahela, Ohio and Allegheny) affect the ... | |
| Hurricane scale | 6/14/2006 |
| Q: Do you think that they should add a Category 6 to the Saffir-Simpson scale? A: I think the Saffir-Simpson scale has worked well and people are used to it; so, my answer would be ... | |
| Planning for Engagement Party | 6/7/2006 |
| Q: I live in Middle Village, which is in Queens, N.Y. I am planning an engagement party for 01/27/07. ... A: It is not possible to give an accurate one year forecast. Your best bet would be to look at the ... | |
| wedding | 5/31/2006 |
| Q: i am planning a wedding for betweenmarch and may of 2007 in portland oregon, i have no clue if i ... A: It is not possible to give an accurate one year forecast. If I knew the city the great! event was ... | |
| cooler at the coast? | 5/30/2006 |
| Q: I had a bit of an argument with friends over this: When we were going to the beach over the ... A: You're right! Water temperature does not change as fast as seasonal atmospheric temperature. What ... | |
| Rain temperature | 5/29/2006 |
| Q: I live in West palm beach, florida. Prior to a sudden, severe thunderstorm this afternoon, the ... A: Rain falling from higher elevations is always cooler. It is true that lower elevation temperatures ... | |
| weather for 2007 | 5/27/2006 |
| Q: i am planning a wedding for april 21, 2007, i was wondering if you could tell me the best way to get ... A: It is not possible to give an accurate one year forecast. If I knew the city the great! event was ... | |
| seasonal temperatures | 5/23/2006 |
| Q: My Son has a weather test this week and they need to know the ranges of temperature for each season. ... A: More: Winter December, January, February Spring March, April, May Summer June, July, August ... | |
| hurricanes | 5/14/2006 |
| Q: how do they forecast hurricanes? A: Meteorologist forecast hurricanes basically the same way they forecast other large scale storms. ... | |
| Wedding Weather! | 5/11/2006 |
| Q: My fiance and I are planning to have our wedding on August 11, 2007 outside his parents' home in ... A: Over a year in advance is too far in the future for exact weather forecasts. Indiana can have ... | |
| Hurricanes causing early labor? | 5/6/2006 |
| Q: What are the real facts surrounding the theory that hurricanes (barometric pressure) can cause early ... A: It is true that extreme drops in barometric pressure (atmospheric pressure) can cause early labor, ... | |
| Army Signal Corps weather | 5/3/2006 |
| Q: My great grandfather, Thorpe Butolf Jennings (the family called him TB) was dispatched to Kansas ... A: One of these links might help: http://www.gordon.army.mil/ocos/Museum/ ... | |
| Doppler | 5/1/2006 |
| Q: Well a few weeks back we had a twister just north of my town i was GLUED to my Doppler there was no ... A: Probably the tornado was hidden by the strong treturn from the hail. When you say: :How could I ... | |
| global warming | 4/23/2006 |
| Q: Mr. Rosenfield, I am a journalism student at SDSU in California. I am writing a story on global ... A: A couple of weeks ago I was asked the same question, so I'm copying my answer here along with ... | |
| tornadoes | 4/9/2006 |
| Q: Why are tornadoes more common in certain areas of the country like the Midwest? A: There is a confluence of factors: Topography (flat land), moisture source (Gulf of Mexico), ... | |
| Global Warming/Cooling Scare | 4/9/2006 |
| Q: I've always been leery of the endless media scares, such as bird flu, E Coli/Salmonella etc., which ... A: The question of global warming has been settled; there is global warming. The questions not settled ... | |
| air temperature and water temperature... | 4/6/2006 |
| Q: does air temperature affect water temperature (temperature of the creek or stream)? od does the ... A: Good question! Both affect each other. There is a transfer of warmness/coolness to each body by the ... | |
| lighting | 4/3/2006 |
| Q: questions about lighting A: I didn't see your question so I'm going to guess: You have 3 questions: 1. How does lightning ... | |
| Weather Report Chance of Rain | 3/29/2006 |
| Q: I have heard different answers from different people about what it means when the weather report ... A: "A 30% chance of rain" means that a person standing at the location of where the forecast covers ... | |
| 2007 forecasts | 3/27/2006 |
| Q: Anyone care to take a stab at weather conditions around Destin, Florida the later part of April ... A: A forecast of a year is kind of risky!! :) However, take a look at: Temperature: ... | |
| offshore breeze | 3/23/2006 |
| Q: can you tell me why the term "offshore" breeze, means a breeze blowing FROM land to sea, whereas ... A: The reason is that it is a local wind that is derived from a difference between the land and water ... | |
| air stability | 3/20/2006 |
| Q: Mr. Rosenfeld: I am interested in learning more about how I can classify air stability using the ... A: Take a look at: http://www.eglin.af.mil/weather/Pasquills.html ... | |
| Tornado's | 3/19/2006 |
| Q: My question is this: If i were to live on a rock bluff approx. 250 ft. above the next lower level ... A: A tornado is water vapor and dust with winds that are very strong (150 mph or more) and when it hits ... | |
| high pressure vs low pressure | 3/19/2006 |
| Q: My 10 year old son is doing a project about the weather. What is present during heavy snow falls, ... A: Low pressure; high pressure is associated with fair weather. For more, see: ... | |
| precipitation | 3/9/2006 |
| Q: is there any relationship between the amount of precipitation and air temperature? does air ... A: Well, with snow, 1" of rain would be about 10" of snow at 32 F but at 20 degrees you'd get around ... | |
| weather history | 3/1/2006 |
| Q: i'm doing a university project on the spanish armada and need info on specific meterological ... A: More info: http://tinyurl.com/gxg97 http://tinyurl.com/gxg97 ... | |
| Weather | 2/26/2006 |
| Q: Why do we have weather? A: Well, the earth has an atmosphere, a sun shining into it, oceans and land to provide differential ... | |
| tornadoes | 2/19/2006 |
| Q: I need to ask an expert how tornadoes start. It is for my science fair experiment at school. It is ... A: Tornadoes form in unstable air and from a pre-existing thunderstorm- most of the time associated ... | |
| Why is it so windy in SF? | 2/14/2006 |
| Q: Has it always been windy in San Francisco? A: Any location that is next to the ocean tends to have average higher wind speeds compared to inland ... | |
| meteorologist | 2/13/2006 |
| Q: what are meteorologists and what tools do they use to predict the weather A: Meteorologists are weather people who try to predict what the atmosphere will do at time and ... | |
| Northern lights | 2/12/2006 |
| Q: Strictly speaking a travel query rather than a meteorology one, but I can't find a travel expert who ... A: See if these links help: http://www.spacew.com/www/aurora.php http://www.auroraborealisyukon.com/ ... | |
| meteorology | 2/8/2006 |
| Q: You hear a weather forecast in the middle of the summer that predicts a warm front moving in. Do you ... A: Depends upon what part of the country you're in; however, generally a warm frontal passage means ... | |
| Weather Predictions | 2/8/2006 |
| Q: How does a meteorologist determine that there is a "percent" chance of precipitation? (i.e. 70% ... A: Basically, there are two ways: The most common is that the Meteorologist bases his probability ... | |
| meteorolgy | 2/6/2006 |
| Q: What is a result of high and low pressure activity? Needle lik snowflakes are called------ where ... A: High pressure bring fair weather and low pressure brings stormy weather. ... | |
| weather movement | 2/4/2006 |
| Q: i ve heard that weather cant move east to west i live in ohio and i was wondering if it was possible ... A: Generally speaking the weather systems move from west to east or some variation of same. But, there ... | |
| Freezing level | 2/2/2006 |
| Q: I live in Oregon and I am an avid snowboarder. I look at weather everyday and am wondering the ... A: The "free air freezing level" is the elevation at which the temperature of the air is below 32 ... | |
| Yankee Clippers/nor'easters | 1/25/2006 |
| Q: I'm sure I've heard the term "Yankee Clipper" used in reference to storm systems (snow/cold) that ... A: A Yankee Clipper refers to a ship: http://en.wikipedia.org/wiki/Yankee_Clipper A northeaster is a ... | |
| Wind Velocity | 1/25/2006 |
| Q: Hey Donald, I was wondering what factors affect the velocity of wind. I am a university student, ... A: Temperature and or orographical differences for local winds and pressure gradient for all others. ... | |
| Jet Stream | 1/19/2006 |
| Q: Rosenfeld, Thank you for fielding my amateur weather buff question. We are having a warm winter ... A: Lot's of people are bored by this winter- you're in good company! The jetstream is the cause and ... | |
| eye of hurricane | 1/19/2006 |
| Q: I understand that in the eye of a hurricane the airflow is down rather than up as it is in the ... A: A very good question! The wall of the eye (eyewall) has greater upward motion of air and the net ... | |
| Wind force | 1/12/2006 |
| Q: What is the force in psi of a 60 mph wind? A: Based on the chart at: http://www.noahs-ark-anchors.com/content/wind.htm it looks like at 60 mph ... | |
| lake noises | 1/11/2006 |
| Q: Last night we were walking past our 1 hectare lake in central France. it has been frozen for some ... A: Probably due to contraction because of the surface change of temperature from day to night. For ... | |
| weather term | 1/10/2006 |
| Q: I am supposed to look up the amount of precipitation per day for school. I keep getting the term "T ... A: "T" means a trace of precipitation and "in" means inches and "cm" means centimeters. For more, see: ... | |
| Lightning | 1/6/2006 |
| Q: I am doing a science project on lightning. Can you recommend sites. How does lightning work? A: Lightning happens when there is a difference of electrical charge between cloud and ground or cloud ... | |
| Hurricane Activity | 1/4/2006 |
| Q: Sir: According to the experts for the next five or ten years we are suppose to be in a climatic ... A: Most of the current predictions are based on warmer sea temperatures. Other reasons are the cycles ... | |
| out of season tropical storms | 1/2/2006 |
| Q: Tropical Storm Zeta formed on December 30. Now that it is 2006, if another tropical storm forms in ... A: A very good question. The 2005 hurricane season ended November 30th and the new one starts on June ... | |
| Evaporation | 12/30/2005 |
| Q: Rosenfeld, Hi, i'm working on a chemistry project and one of the requirements was to ask an expert ... A: The experts at Allexperts are not supposed to do homework for a questioner. With that in mind, let ... | |
| frost | 12/29/2005 |
| Q: What causes the frost on a car's windshield on freezing mornings? Why does frost not occur when a ... A: A car windshield is separated from the car by a band of rubber glue. This allows the window itself ... | |
| science | 12/19/2005 |
| Q: 1.Why were weather forecasters so important during the drought and wildfire season in Florida in ... A: what grade level would you like me to revise the answer to?? Hi Amanda Weather forecasters were ... | |
| direct anthropogenic thermal pollution | 12/18/2005 |
| Q: This is my second submission of basically the same question. The answer I received from you or ... A: The best answer that I can give is through a link and that is an inferential answer. This link was ... | |
| weather and storms | 12/17/2005 |
| Q: What is the difference between a Tornado, Hurricane, Whirlwind and a Typhoon? I have had so many ... A: A hurricane and a typhoon are the same except that the hurricane is in the Atlantic and the typhoon ... | |
| ancient weather | 12/17/2005 |
| Q: I have heard that during the time of dinosaurs, the earth rotated more quickly causing a shorter ... A: See if these links help: Earth rotation: http://deschutes.gso.uri.edu/~rutherfo/milankovitch.html ... | |
| fronts | 12/13/2005 |
| Q: last spring the set up was this, a slow moving cold front was in the middle of michigan moving ... A: The quickness of the wind shift is directly proportional to the pressure gradient (the rate of ... | |
| New Zealand Nor'wester | 12/11/2005 |
| Q: I'm currently on a sabbatical in Christchurch, New Zealand, and the biggest weather-related ... A: Downslope winds bring warmer temperatures; take a look at: ... | |
| Weather | 11/16/2005 |
| Q: Explain the process by which weather forecasters know what the weather will be like. A: Weather forecasters use tools like: http://www.weathercontest.com/forecast.html They learned about ... | |
| weather | 11/7/2005 |
| Q: What insturments are used in forecasting the temperature and what weather factors influence the ... A: Measuring temperature is done with a thermometer: http://en.wikipedia.org/wiki/Thermometer As to ... | |
| Lightning | 11/2/2005 |
| Q: What are the odds of a person getting struck by lightning? Or, how many people in the United ... A: Don't know about poker, but these links will help you with the lightning questions: ... | |
| Hurricanes! | 10/26/2005 |
| Q: What are scientists doing to prevent hurricanes from reaching land? if you are unable to answer this ... A: Not much because it seems impossible to alter the course of hurricanes; take a look at: ... | |
| electrical charge | 10/24/2005 |
| Q: Donald, Thank you for that list. It was interesting seeing that others have had the same ... A: I would think that low clouds would be indicative of higher humidity at ground level. I would agree ... | |
| Hurricanes and "what's inside" | 10/22/2005 |
| Q: Donald- I'm a little embarrassed to ask this question, but I really don't know. I live in ... A: Hurricanes contain salt water when they are over water because of the wind creating salt ocean ... | |
| electrical charge | 10/20/2005 |
| Q: Donald, I appreciate that you are pursuing this. I'm sorry if this answer gives more detail than ... A: See if these links help; if not, let me know: http://tinyurl.com/b4yf2 http://tinyurl.com/cdtml ... | |
| Lightning and Thunder | 10/17/2005 |
| Q: Mr. Rosenfeld: In August I was driving through the Mojave desert when I encountered the most ... A: There are two causes for no thunder with close lightning strikes; the first is very heavy rainfall ... | |
| Lightning& thunder | 10/11/2005 |
| Q: What are all the different forms of lightning? A: There is cloud to ground, ground to cloud, cloud to cloud, and cloud to space (sprites). Heat ... | |
| IR atmospheric windows | 10/2/2005 |
| Q: I have recently learnt somethings about IR atmospheric windows. I know that they are named J, H, K, ... A: "The near-IR bands (J, H, K, L, M, N, Q) are not named mnemonically, but almost alphabetically ... | |
| hurricanes | 9/19/2005 |
| Q: whats the max winds a hurricane can strengthin to? A: Further thought: Typhoon Paka (1997) had winds of around 240 mph so I think the upper limit would ... | |
| Hurricane Katrina | 9/19/2005 |
| Q: my name is Gina. I attend Lees Summit West High School and I am doing a project on Hurricane ... A: *How come the levees were only built for a category 3 hurricane? The local and state government ... | |
| Hurricanes, storms, etc | 9/14/2005 |
| Q: With the recent Katrina tragedy, my friends and I have been thinking about hurricanes and typhoons ... A: A typhoon is the same as a hurricane except it occurs in the Pacific. A tropical storm is a weaker ... | |
| Cat 4 or 5 Hurricane hitting Central fla. | 9/13/2005 |
| Q: Would like to know since I live in Central fla,, what would happen to us if a catagory 4 or 5 hit ... A: Since Florida is basically flat, there would be little reduction of windspeed inland. The biggest ... | |
| Questions about hurricanes | 9/9/2005 |
| Q: My name is Max Brown. I am sophomore at Lee's Summit West High School and we are doing an I-Search ... A: 1. How do hurricanes get started? In tropical areas, thunderstorms some times develop into low ... | |
| Storm Surge | 9/5/2005 |
| Q: Donald: How far inland did the Storm Surge from Katrina go? And how far inland would there be ... A: I haven't heard any one say exactly how far the surge went inland. These links may give you some ... | |
| Hurricanes | 8/31/2005 |
| Q: Since a hurricane requires water temperature of >80 degrees Farenheit, if the water temperature ... A: A breakwall wouldn't do the trick- Why? Because a lot of the energy/warm water comes from beneather ... | |
| Why do storms have low pressure? | 8/31/2005 |
| Q: Mr. Rosenfeld - Why do thunderstorms and hurricanes have low air pressure? I know storms are formed ... A: Thunderstorms typically have normal air pressure. An exception would be a tornado which does have ... | |
| probability of precipitation | 8/27/2005 |
| Q: What does it mean when a forecaster predicts x% chance of rain? A: A 40 % chance of rain means that at the spot you're at, for the exact atmospheric ... | |
| Terminology | 7/5/2005 |
| Q: I have some questions that have been bugging me... 1. What's the difference between "partly cloudy" ... A: Mostly sunny has very few clouds but partly cloudy means a greater amount of clouds. Isolated is ... | |
| Sounds of high flying jets | 6/15/2005 |
| Q: Don't know if you can answer this. At first glance the question doesn't seem to have much to do with ... A: "Jet engines create noise in two different ways. As a plane is flying towards someone, the air ... | |
| Warm and cold fronts | 6/15/2005 |
| Q: I have heard the term high pressure systems and low pressure systems, and I have also heard the term ... A: Here are the different fronts: cold, warm, stationary and occluded. Take a look at: ... | |
| El Nino Followup | 6/14/2005 |
| Q: I answered two of them, but the third one I still couldn't find any answers too: What effects do ... A: Both influence the temperature of the upper ocean surface which is paramount to El Nino/ La Nina ... | |
| El Nino | 6/9/2005 |
| Q: I am doing a high school project on El Nino and La Nina. I was wondering about a few things: Are El ... A: Here are some links to help you but if you still have questions, ask again: ... | |
| climate of new york city | 6/5/2005 |
| Q: I am trying to find out what affects the rainfall patterns in new york (e.g. convectional, cyclonic ... A: Basically, the ocean and northeasters have the biggest effect on the amount of rainfall that New ... | |
| Coreolis effect | 5/21/2005 |
| Q: I have asked several people, including meterologists in town and have yet to receive a satisfactory ... A: The jet stream, whichj moves from west to east in the northern hemisphere is the governing force in ... | |
| Recent Polarized Sunlight | 5/13/2005 |
| Q: I and some acquaintences have recently noticed that around sunrise and sunset sunlight seems to be ... A: You may be seeing a "sun pillar". Take a look at: http://tinyurl.com/93sbl ... | |
| hurricane frances | 5/6/2005 |
| Q: i need a picture of hurricane frances over the state of fl and any info you feel i could use in my ... A: Try: http://tinyurl.com/c52fe http://www.srh.noaa.gov/mfl/newpage/frances/satellite_lg.jpg ... | |
| Hurricane Ivan and Grand Cayman | 4/27/2005 |
| Q: I was on Grand Cayman during the storm and was hoping to find the reason behind this surge. The ... A: Ivan was a very intense hurricane cat 4 and Gilbert was a cat 3 when they passed the Grand Cayman. ... | |
| Hurricane Ivan and Grand Cayman | 4/27/2005 |
| Q: I wanted to know if there were any factors that may have increased the intesity and height of the ... A: Looks like the storm surge was about 8 feet. For more, see: ... | |
| salt particles on air? | 4/20/2005 |
| Q: how salt particles located on air (above sea)? which parameters are related with salt amount on ... A: Salt particles get into the air via evaporation of sea water in the oceans and through wind ... | |
| Daily temperatures in India | 4/13/2005 |
| Q: Where on the Internet can I get daily temperatures of various Indian cities ? I would like to make a ... A: Go to: http://www.wunderground.com/global/IN.html and pick a city on the left side of the pqage. ... | |
| Frontogenesis Isotherm and Streamline | 4/13/2005 |
| Q: If isotherm lines be relatively in perpendicular with respect to streamlines who can possible to ... A: Here are two good links for confluence/diffluence: ... | |
| Tornados/Hurricanes | 4/12/2005 |
| Q: my name is Brandon and I attend St. john Nepomuk school in Racine, WI. I am in 7th grade. In our ... A: Well, first, NOAA (the weather bureau) does not name tornadoes. As to the alphabet, they don't ... | |
| aurora | 4/12/2005 |
| Q: my name is Kyle and I attend St. John Nepomuk School in Racine Wisconsin. In our comnputer class we ... A: Very good question! Solar flares from the sun send electrons that interact with the magnetic field ... | |
| lightning | 3/25/2005 |
| Q: does lightning strike from the sky down? or does lightning strike from the ground up? A: The answer is both and more. There is cloud to ground, ground to cloud, cloud to cloud, and cloud ... | |
| tropical cyclone names | 3/22/2005 |
| Q: I have information from the noaa, but I want to know how these names are chosen. The web addresses ... A: The WMOO, World Meteorological Organization, is in charge of the naming process; some areas are ... | |
| elevated thunderstorms | 3/21/2005 |
| Q: if elevated thunderstorms downdrafts do not rach the surface because of their high bases , then why ... A: Depends upon the strength of the down drafts. Shelf clouds (bow echos) indicate a more intense ... | |
| cumulonimbus clouds | 3/19/2005 |
| Q: all info about Cb clouds important for aviation,in tropical regions only.THANKS A: The single two most important things about cumulonimbus clouds are that they are associated with ... | |
| Clouds | 3/18/2005 |
| Q: It might seem like a simple one, but it has caused a few constructive arguements at the office. My ... A: A very good question. The answer is that they are both the same except one is higher than the ... | |
| weather | 3/16/2005 |
| Q: How do interactions of air, water and land create earth's weather? A: All are part of the process of weather; air houses weather, water provides the moisture for clouds ... | |
| The Weather | 3/14/2005 |
| Q: I go to Merrimack College in North Andover, MA and I am an elementary education minor. For a ... A: A goodI think the simple answer is that there is a mix of components in the atmosphere that needs to ... | |
| Rainbows | 3/14/2005 |
| Q: Why do we see the colors of the rainbow that we do? A: Light is refracted when it passes through water droplets, that causes rainbows. For more, see: ... | |
| Days without Sun in A Sunbelt State | 3/1/2005 |
| Q: I once read that Oklahoma has 300 or more days of cloudless sunshiney days per year, but I can't ... A: All of the four url's refer to or include Oklahoma; take a look at: ... | |
| Ice Storm | 2/28/2005 |
| Q: I'm wondering about the ice storm that happened in 1998 in Quebec. It seems that no one was really ... A: I've heard of no changes in engineering standards. The forecasting isn't a problem and wasn't the ... | |
| hurricans and cyclones | 2/27/2005 |
| Q: are cyclones and hurricans the samething A: Depend upon what part of the world your in! Cyclones and hurricanes are both low pressure areas but ... | |
| Climate change | 2/17/2005 |
| Q: I remember reading somewhere that the present phase of global warming has not yet reached that which ... A: I think that is true, but, the bigger question is what is causing Global warming and whether man's ... | |
| hurricans and cyclones | 2/15/2005 |
| Q: are cyclones and hurricans the same thing A: Depend upon what part of the world your in! Cyclones and hurricanes are both low pressure areas but ... | |
| snowflakes | 2/12/2005 |
| Q: ive been told that no 2 snowflakes are alike...is that true and if it is true....how in the world ... A: It is true in that no two have been found to be exactly the same. But, never, is a long time! ... | |
| Shade Temperatures | 2/3/2005 |
| Q: Donald, Thanks for your answer to Gina regarding temps in shade/direct sun, I found this ... A: Looking back at Gina's question (immediately below) Name:gina Subject: weather Date: August 1, ... | |
| Tornadoes | 2/2/2005 |
| Q: Ryan, a student in my gifted and talented group, is doing an independent "investigation" of ... A: A tornado will pick up everything except a very large office building. However, the tornado is ... | |
| Atmospheric pressure/water pressure | 2/1/2005 |
| Q: I am in 4th grade and doing the science fair. I want to know if atmospheric pressure affects water ... A: Water has force depending upon what is pushing it. Hi Glenn Well, the weight of air is 14.7 lbs ... | |
| Meteorologist science fair project | 1/23/2005 |
| Q: I need help better understanding how to read my homemade barometer. I'm using a ruler how do I ... A: You could get the barometric pressure for your town by going to: http://www.wunderground.com/ and ... | |
| Anemometer | 1/18/2005 |
| Q: I have seen various sites on the internet that talk about making a homemade anemometer using a ping ... A: I'm unable to answer this: but, I'd guess that you'd need to know the weight of the ball plus the ... | |
| Find high / low temperatures for my town | 1/14/2005 |
| Q: Do you know of a place where I can find high / low temperature data for my area (Elyria, Ohio) for a ... A: Try: http://www.wunderground.com/US/OH/Elyria.html and scroll down the page to: "Detailed History ... | |
| thunder and Lightning | 1/14/2005 |
| Q: Hello my name is Michael Smith I'm a student at Elmira Free Academy in Elmira New York. I'm doing a ... A: I'm a private meteorologist so my answers may be atypical. My first question is what made your job ... | |
| warm air aloft/ what is the most snow ever recorded in an hour? | 1/9/2005 |
| Q: Good Evening Mr. Rosenfeld Those of us who are snowlovers hate nothing more than a nice snow ... A: I've seen sleet in the teens. Freezing rain into the upper 20s. I've seen 5" a hour in one or two ... | |
| east coast winterstorms/cyclogenesis | 1/9/2005 |
| Q: Good Evening Mr. Rosenfeld I have an avid interest in meteorology with a very specific interest ... A: Take a look at: http://www.ametsoc.org/pubs/books/index.html The two books that you should get ... | |
| Tornado Destruction | 12/18/2004 |
| Q: What makes tornadoes so destructive? What kinds of destruction do tornadoes cause? How much ... A: Tornadoes are destructive because of very high winds- 100 to 350 miles per hour! The destruction is ... | |
| snow question | 12/5/2004 |
| Q: I was born in 1969. I live in Connecticut and have so since I was born. Over the past 35 years or so ... A: Sometimes older people remember snow depths as being higher "way back" because they were younger and ... | |
| Rainbows | 12/1/2004 |
| Q: What are the chances of seeing a rainbow everytime it rains? A: Depends upon several issues: Viewing location Sun location Rain shield position Rain shield ... | |
| weather maps | 11/21/2004 |
| Q: what is on weather maps? A: Weather maps show temperature, pressure, wind direction and speed plus storm and fronts; for more, ... | |
| Rain in Deserts | 11/14/2004 |
| Q: Okay, well I must apologize. As I sent this to you I realized it was Walter that gave us that ... A: Deserts are located where there is very little rainfall. Distribution of rainfall is governed by ... | |
| rain | 11/4/2004 |
| Q: My question is, how does a barometer corilate with rain. Is ther a scale that can be used if a ... A: Take a look at: http://www.medfordclock.com/bfacts.html http://www.medfordclock.com/bfaq.html#3 I ... | |
| Weather in the mountains | 10/17/2004 |
| Q: can you tell me why high mountains are always covered in snow and very cold- seeing as they are the ... A: It's the same reason that with winter temperatures snow stays around- COLD!! With respect to ... | |
| Coriolis and altitude effect on wind direction at low latitudes | 10/6/2004 |
| Q: How many degrees might one expect surface winds to back (due to coriolis effect) at a position of 1 ... A: At a given location you'd have no effect from the Coriolis Effect. It is only significant over large ... | |
| Wind Direction | 10/6/2004 |
| Q: Can you send me picture of the way wind direction is determined with a aneometer.Like Wsw were onthe ... A: The "wsw" is located at 8pm on a clock. The trick to understanding the reported/forecasted wind ... | |
| Hi Donald, Every year I read... | 9/27/2004 |
| Q: Every year I read that the southeast US has hurricanes. Yet the news makes it sound like this type ... A: More hurricanes in Florida. The cause? The steering currents aloft along with a blocking high ... | |
| Hurricanes... | 9/25/2004 |
| Q: Mr. Rosenfeld: Why do just about all hurricanes tend to have a "left to right" hook in their ... A: Hurricanes start out moving from east to west and then tend to move in a more northerly direction ... | |
| milobars | 9/7/2004 |
| Q: now I see that inches of Mercury and milobars are basically different ways of saying the same ... A: Well the formula to convert millibars to inches is: MB X 0.0295 = inches of mercury ... | |
| milobars | 9/7/2004 |
| Q: I would like to know what exactly are the reasons or purposes of the different levels of milobar ... A: Well, millibars, hectopascals, and inches of mercury are all ways to express what the atmosphere ... | |
| hurricanes | 9/5/2004 |
| Q: My wife and I are discussing the following question, "When a hurricane passes over water does it ... A: The hurricane does cause sea water to get into the lower atmosphere due to the strong winds taking ... | |
| Pittsburgh summer weather | 8/31/2004 |
| Q: Mr. Rosenfeld: I'm a studnet at the University of Pittsburgh and am writing an article for one of ... A: The summer precip was enhanced by a more active and lower latitude jet stream that normally resides ... | |
| barometer | 8/16/2004 |
| Q: When making a backyard barometer with my kids - jar, ballon and straw. I explained that when the ... A: If you read through all below it should give you the insight you'll need. If it doesn't, let me know ... | |
| Weather | 8/9/2004 |
| Q: I was wondering if you could help me answer any of the following questions for a GS badge. ... A: a.)Scientifically, what makes a "bad hair day"? High humidity b.)What happens if the jet stream ... | |
| aurora borealis | 7/27/2004 |
| Q: I hope you're living the good life. My name is Willis and I usually go by "Toik". I used the All ... A: Must be an upside down mirage caused by an inversion. For more, see: ... | |
| weather | 7/23/2004 |
| Q: Why is it so humid in summer in the Washington D.C. area and so dry in the forests in the western ... A: It basically has to do with average wind direction in those areas by season. Washington is affected ... | |
| Maine weather in October | 7/20/2004 |
| Q: I am writing a children's book which is set partially in Maine (Bar Habor area, made-up town), and ... A: For the climate info, you can get a fairly good idea using: ... | |
| thunder and lightning | 7/11/2004 |
| Q: Donald, i am from england and have recently moved to minneapolis and have a few questions about the ... A: I think the difference bewteen England and Minneapolis is the general air mass stability- England's ... | |
| LCL and Surface Pressure | 6/23/2004 |
| Q: I am very fascinated in meteorology and I have been studying it privately as a hobby for a few years ... A: Question 1: They (NOAA) send up a radiosonde and the curve is derived by observation; however ... | |
| Barometric Pressure | 6/6/2004 |
| Q: I hope everything is going okay for you, and that you are in good health. My name is Joe, and, I ... A: To correctly use your new aneroid barometer you need to adjust it to sea level pressure; to ... | |
| low barometric pressure | 6/6/2004 |
| Q: Why does barometric pressure fall before rain/precipitation. Doesn't moist air weigh more than dry ... A: Sometin=mes the pressure stays the same or even rises. Generally speaking though, rain ... | |
| thermometer | 6/5/2004 |
| Q: I was wondering why there is a difference in in temperture in a dry bulb thermometer and wet blub ... A: The dry bulb temperature is the air temperature. The wet bulb temperature is the temperature that ... | |
| how weather affects radio wave transmissions | 6/2/2004 |
| Q: I am a reporter with The Dallas Morning News. I am based in Cuba and filed a story today on Cubans' ... A: Sometimes temperature inversions can act as a high television antenna to propagate tv signals ... | |
| Tornados | 5/31/2004 |
| Q: Does the amount of forestation in an area - specifically Washington State - have any effect on the ... A: Forestation tends to reduce thermal updrafts do to a reduction in differential heating which ... | |
| clouds and raining | 5/30/2004 |
| Q: An area of clouds can obviously contain large amounts of water to give off rain for days. How much ... A: A cloud is constantly changing with new moisture coming in and moisture either falling out or ... | |
| fog | 5/29/2004 |
| Q: I'm trying to explain how fog forms to a 9 year old. We've done some reading on the subject and some ... A: Take a look at: http://tinyurl.com/2fltg http://pollux.nss.nima.mil/calc/humidity.html ... | |
| rainbows | 5/28/2004 |
| Q: Just askin' My mom called me and told me to get my son (2 1/2 yrs old) and look out the window to ... A: The horizon at sea level is about 3 miles- but, the rain bow extends above so you should be able to ... | |
| Rainbows | 5/25/2004 |
| Q: We get lots of rainbows here in Dannevirke, New Zealand. I recall someone from America saying that ... A: America has a normal distribution of rainbows. It is usual to have rainbows in all countries. It is ... | |
| ice atmosphere | 5/14/2004 |
| Q: Is it possible for a solid ice layer to form in the atmosphere? I think i read one time that one of ... A: Solid ice could not form because gravity would make it fall prior to be a "skating" rink. Hail does ... | |
| tornado | 5/9/2004 |
| Q: 1. could tornados possibly fall from the sky because of polar forces? the same that cause lightnig, ... A: Those forces would not be strong enough to cause a tornado. #2: Electrons exist in the atmosphere; ... | |
| Lightening | 5/8/2004 |
| Q: When I was a small child, about 1941/42, my sister and I were walking down a remote country road. ... A: First, it was probably ball lightning. Ball lightning is more random on hit pattern. Regular ... | |
| weather conditions ina valley | 4/29/2004 |
| Q: I'm writing a children's picturebook (fiction)and it takes place in a valley at the base of a large ... A: I guess I should give you some more info to try to make this mountain effect clearer; take a look ... | |
| jet stream | 4/26/2004 |
| Q: how does the jet stream affect weather locally, regionally, and nationally? A: The jet stream brings or keeps away storms and or big changes of temperature. For more, see: ... | |
| Weather | 4/25/2004 |
| Q: I live in Chicago, just several blocks from Lake Michigan. If its about 40 Degrees where I am, why ... A: The lake acts as a warm source in the winter and a cool one in the summer. The 40 degrees in the ... | |
| smell of the sea inland | 4/20/2004 |
| Q: I live in south west Scotland, about 40 miles inland. In January I was walking in a conifer forest, ... A: What happened was that the precipitation was formed from moisture that was captured over the ocean ... | |
| Barometric Pressure | 4/14/2004 |
| Q: I am pulling some archived weather information up for a local city and noticed that there is a large ... A: It could be observer error, barometer error, adjustment error, or, more likely, a difference in ... | |
| Weather forcasting 50 years from now | 4/13/2004 |
| Q: If you could look into your crystal ball and tell me what the distant future holds for forcasting ... A: With satellite and computer and model improvements, weather forecasting will become extremely ... | |
| Becoming A Meteorologist | 4/11/2004 |
| Q: Rosenfield, I am 13 years old and in the 7th grade. Pursuing meteorology is my goal. To become a ... A: First, do well in school because all courses are important. Math and science are most important as ... | |
| hurricanes | 3/31/2004 |
| Q: How can hurricanes cool down the earth? Thanks alot i was readin an article about them cooling down ... A: Hurricanes over the ocean cause "upwelling" which brings ccooler sub surface ocean water to the ... | |
| weather | 3/30/2004 |
| Q: How is a tornado similar and different then a hurricane? How bad are sandstorms compared to ... A: Tornadoes are small scale compared to hurricanes. They both have low barometric pressure and strong ... | |
| weather forecast and sunset question | 3/7/2004 |
| Q: Mr. Rosenfeld, Harry, I plan on proposing to my girlfriend in the coming week. She loves sunsets, ... A: Forecast for New York City March 11th 6pm: Partly Cloudy, temps near 50, winds light (under 15 mph) ... | |
| Studying Meteorology | 2/21/2004 |
| Q: I have a B.S. in Mathematics, and am very interested in studying meteorology. I am having a bit of ... A: When you say "New York area", what does that mean in miles? My guess is you would not need more ... | |
| beach | 1/28/2004 |
| Q: I live near Los Angeles, typical suburban neighborhood. I don't get to the beach very often and ... A: In some beach areas it is true most of the time except in cases of a new airmass moving in with ... | |
| Equator weather | 1/19/2004 |
| Q: I have been searching the internet -- but I was unable to come up with a lot of information about ... A: It is possible to snow near the equator...and it DOES!! (up high elevations). Take a look at: ... | |
| weather | 1/4/2004 |
| Q: How does barometric pressure affect our health (eg. sinus pressure, etc.)? A: The weight of air, by varying, does cause changes in our sinuses. Take a look at: ... | |
| Hurricanes | 11/11/2003 |
| Q: Rosenfield, Hi. My name is Charles and I live in Bergenfield, NJ, which is 10 miles west of New York ... A: I think it's a great idea and I wish you well!! Take a look at: ... | |
| Global Warming | 10/25/2003 |
| Q: My daughter is doing a report on "Global Warming and it's Effect on Storms Intensity and Frequency". ... A: Sounds like a nice project! Take a look at: ... | |
| WeatherBug | 8/28/2003 |
| Q: I downloaded weatherbug on my computer, and i was wondering how accurate it was. thanks! megan A: Well, that's a hard question; local observations are only as accurate as the equipment used and ... | |
| Front Tracking | 8/22/2003 |
| Q: I am a high school student preparing to do a "science fair" (Virginia Junior Academy of Science, to ... A: Let me suggest that the better approach would be to track the low pressure areas because you would ... | |
| barometric pressure | 8/18/2003 |
| Q: I know were not gods, but is there a way to raise the barometric pressure in a home. IS there some ... A: It is true that sciatica can be affected by low barometric air pressure. Instead of trying to ... | |
| lightening strikes | 8/11/2003 |
| Q: I am having a dissagreement with my girlfriend regarding lightening strikes!? She says there are 2 ... A: She says there are 2 different types of lightening strikes called sheet and fork: There are cloud ... | |
| weather | 8/1/2003 |
| Q: i have had this discussion with a number of people lately and figured I needed a real answer. When ... A: It's taken in the shade. If it wasn't, the sunlight would cause a false reading. The air in the ... | |
| wet bulb temp | 7/19/2003 |
| Q: at work they use a wet buld temp diff to determine the amount of time in one hour that we need to ... A: Wet bulb temperature is the lowest temperature that can be obtained by evaporating water into the ... | |
Meteorology (Weather)
Answers by Expert:
Donald Rosenfeld
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Any questions (except private) answered from the 1st grade level on up pertaining to any aspect of Weather. I am a 20 year member of the American Meteorological society and a long time forecaster of eastern United States snow storms and Hurricanes.
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