AllExperts > Meteorology (Weather) 
Search      
Meteorology (Weather)
Volunteer
Answers to thousands of questions
 Home · More Meteorology (Weather) Questions · Question Library  · Free Encyclopedia ·
More Meteorology (Weather) Answers
Question Library

Ask a question about Meteorology (Weather)
Volunteer
Experts of the Month
Expert Login

Awards

About Us
Tell friends
Link to Us
Disclaimer

 
 
 
About Walter Denman
(Top Expert on this page)

Expertise
I was a weather observer in the USAF for 6 years, a forecaster for the USAF for 3 years. I am the meteorologist in charge at a private company in Atlanta Georgia and have been for over 20 years. I have been an expert witness in legal proceedings regarding meteorology. B.S. in meteorology from Texas A&M University.

   

You are here:  Experts > Science > Weather > Meteorology (Weather)

Questions Answered By Expert  Walter Denman 
In Category  Meteorology (Weather)

SubjectDate Asked

question about future weather12/29/2008
  Q: I am planning an outdoor wedding this upcoming year, I live in south east Michigan, but the wedding ...
  A: Tiffaby, Good luck in your upcoming wedding - regardless of when it is. You can try ...
Cities with steady and higher barometric pressure12/26/2008
  Q: I have severe rheum. arthritis and am adversely affected by low and dropping barometric pressure -- ...
  A: Sandi, I am so sorry for your physical condition. Barometric pressure changes fairy regularly ...
goegraphy homework6/5/2007
  Q: i am in grade 8 and we were asked to give the difference between sleet, snow and hail. i read chris' ...
  A: Jade, all three form in about the same place in the atmosphere as snow. This happens at about ...
Is there a difference?11/6/2006
  Q: Is there a difference between weather and meteorology? If so can you explain? Thanks a lot.
  A: Jade, weather is the state of the atmosphere, mainly with respect to its effects upon life and human ...
phone weather10/24/2006
  Q: Denman Why is Verizon discontinuing the weather as of 11/1/06? How many people call in for weather ...
  A: Patricia, I am not sure why they are discontinuing the service. It probably has to do with a change ...
barometer pressure10/4/2006
  Q: What is or how do I find the correct barometric pressure reading for my location. (Syracuse NY)
  A: Tom, For a barometer in the home go to http://weather.noaa.gov/weather/current/KSYR.html near the ...
thermosphere9/20/2006
  Q: Denman, What device do they use to measure temperature in the thermosphere if the molecules are so ...
  A: Dana, The temperature in the thermosphere is very dependent on solar activity. Because of the thin ...
comparison9/12/2006
  Q: please, can you mention the comparison between the water vapor and fog? thanks.
  A: Khedir, Fog will form as water vapor turns into droplets (fog). Although water vapor is present in ...
Thunderstorm paths8/24/2006
  Q: Is there some specific reason that thunderstorms seem to follow major roadway paths? Here in MN, ...
  A: Colleen, temperature diffences aid in thunderstorm development. With all other variables in the ...
temperature inversion8/2/2006
  Q: Mr. Denman: I was wondering if it is possible to forecast temperature inversion days, say one or ...
  A: Priscilla, The answer to your questions are yes on all counts. What is needed is a comprehensive ...
Terminology7/8/2006
  Q: My question is this: What does "northerly" mean? Every dictionary I have seen lists two definitions. ...
  A: Joe, In weather, wind direction is defined as the direction from which the wind is blowing. The ...
Climate7/2/2006
  Q: My wife and I are ready to relocate to Oregon/Washington and would like to find the area in either ...
  A: Roger, I am not intimately familiar with the climate of Washington and Oregon but I believe you can ...
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: Augusto, You are correct that moving a few hunderd yards could be several degrees different. Go to ...
Windy weather5/19/2006
  Q: Why are we in the south east, SC, experiencing continual windy dry weather, every day for the past 6 ...
  A: Shawn, just like some years are wetter than others, some years are more windy. It has to do with ...
storms never pass over our house4/3/2006
  Q: I have lived in Chicago for 10 years, and have been making some observations weather-wise about the ...
  A: Naroslav, If your observations are based on radar displays (which I suspect they are) the ...
tornadoes3/26/2006
  Q: I've heard that tornadoes only occur in the United States. Why do no other countries experience ...
  A: Amanda, maybe you should have made a bet on this! About 90% of all tornadoes occur in the united ...
Wind direction and regional air pollution3/21/2006
  Q: Mr. Denman: I have a question regarding wind and its ability to carry air pollutants. I am doing ...
  A: Priscilla, be advised that wind speed and direction are variable with height. For a forescat of ...
advice3/20/2006
  Q: I am currently working towards my A.S in science and then i am planning to transfer to Northern ...
  A: Tim, if you haven't yet, go to http://www.ametsoc.org/atmoscareers/index.html and ...
weather forecasting3/13/2006
  Q: can you tell me the steps in weather forecasting? can you explain to me the different kinds of air ...
  A: Leslie, I am not aware of any steps in weather forecasting. In order to make a good forecast one ...
tornadoes2/20/2006
  Q: I need to ask an expert how tornadoes start. It is for my science fair on Tuesday morning. I am 7. ...
  A: Nate, It is highly improbable for you to experience a tornado at 8000 feet elevation (notice I did ...
Why is it so windy in San Francisco2/14/2006
  Q: Has it always been windy in San Francisco?
  A: Yes. The location of SF topographically, as well as being close to relatively cold waters while ...
Frost2/11/2006
  Q: Why does frost form on the surface of automobles and windsheilds when the temp. is above freezing ie ...
  A: Jerry, the temperature of the glass is equal to or less than 32 degrees. Where did you get the 36 ...
weather1/23/2006
  Q: why coastal communities usually experience milder tempertures than cities that are notlocated near ...
  A: Brenda, coastal cities have the added benefit of a very large body of water nearby and water ...
what causes steamy mornings?1/13/2006
  Q: Several mornings in December the weather was, for lack of a better term, steamy. It wasn't ...
  A: Phillip, you picked the correct word in "steamy" as this is commonly refered to as steam fog. It is ...
circle1/12/2006
  Q: I have seen some of the photographs with circles around the moon, but tonight the moon has a circle ...
  A: Greg, whether day or night, whenever there is a thin veil of cirrus cloud (translucent is best) you ...
North American climate1/8/2006
  Q: Why is boston's(MA) weather so cold as compared to Portland (OR), when they have around same ...
  A: Ruchika, Latitude and elevation have minimum impact on weather differences. The main reason there ...
Hurricane Activity1/4/2006
  Q: Sir: According to the experts for the next five or ten years we are suppose to be in a climatic ...
  A: Woody, I can't speak for all forecasters and I am sure their opions differed then as now. IMHO ...
Barometric pressure1/3/2006
  Q: I have a barometer that I keep in my office. The office is located at an elevation of 1010 ft. I ...
  A: George, If the difference is constant the difference may be the elevation of the airport, the ...
What causes a spectacular sunrise or sunset?12/18/2005
  Q: What causes a spectacular (photogenic) sunrise or sunset, and can such a thing be predicted in ...
  A: Robin, beauty is in the eyes of the beholder. As a meteorologist I love to see lots of clouds and ...
What causes weather?12/5/2005
  Q: I'm doing a project for a class. I have to learn about what causes weather. I'm looking mostly for ...
  A: Danielle, This topic is much to large to answer here. Please go to ...
Hurricane wind speed at 3 ft from the ground11/8/2005
  Q: Good morning. I am designing an enclosure that will be out in the weather and housing expensive ...
  A: Kevin, I am not aware of a rule of thumb for your problem. Due to different frictional forces and ...
Upper winds10/23/2005
  Q: Is there any particular model to apply for interpolating winds between Flight Levels?, Will linear ...
  A: Nagaraj, Did you mean at FL 320 winds of 320/110? A correct linear interpretation of your values ...
Hi Walter, I was wondering...10/12/2005
  Q: I was wondering if anyone has ever tried to explode a bomb near the eye of a hurricane. The idea ...
  A: Doug, I'm not aware of a bomb that would produce enough energy to disrupt the energy of a hurricane. ...
High altitude turbulence - West Texas, SE New Mexico9/29/2005
  Q: I'm a pilot with a major airline, can't seem to get a definitive answer from other pilots, dispatch, ...
  A: Matt, you hit the nail on the head. Topo features are reflected to much higher altitudes in regard ...
East and West Weather9/21/2005
  Q: My questions to you are why do the western states have less humidity then the east coast? Both have ...
  A: Julie, upwelling causes colder water along the california coast (Florida gets the warm gulf stream). ...
Types of Meteorology9/15/2005
  Q: I am doing a school project and I want to know what kinds of meteorology there are (ex. climatology, ...
  A: Johnathan, this kind of question is asked so many times there are several web sites that answer it. ...
Interview9/12/2005
  Q: I go to Lee's Summit West High School in Missouri and we have to do a paper in our Composition II ...
  A: Allie, I usually do not do homework assignments, but if you will go to ...
summer storms7/18/2005
  Q: A. and I work as a ride operator at a local amusement park we were told it is safe to run rides ...
  A: Trish, When I was a weather observer we were told that a thunderstorm begins the moment we hear ...
Hurricane Emily7/17/2005
  Q: What determines the path of hurricane Emily after it enters the Gulf of Mexico? Or what would it ...
  A: David, forecasts are like noses, everybody has one - and they use different methods of determination ...
A career interview questions.6/22/2005
  Q: Walter Denman Subject: Request For meteorology Career Information. I am a college student taking a ...
  A: Charles, I can't answer regarding other companies requirements and necessary skills for their type ...
Gustnados6/13/2005
  Q: While watching TV coverage of servere weather last night, I heard numerous mentions of "gustnados" ...
  A: Jo, Gustnadoes are weak vortices that form along the gust front of a thunderstorm, therefore the ...
My questions about severe thunderstorms.5/28/2005
  Q: During what month do you think Pennsylvania have more severe thunderstorms? Why does severe ...
  A: Patty, go to http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/svr/home.rxml for info on how a ...
Tornadoes5/19/2005
  Q: I live in West Central Texas and am interested in learning more about how to spot tornadoes. I know ...
  A: Anissa, try http://www.hpc.ncep.noaa.gov/html/contract.html or http://spc.noaa.gov/misc/about.html ...
Temp. Drop5/3/2005
  Q: Could you please tell me why just before sunrise the temp. seems to drop a few degrees? Thanks Al;
  A: Al, the coldest time of day (under ideal conditions - high pressure, light wind, etc.) is at sunrise ...
tornadoes4/14/2005
  Q: What do you do in details?
  A: Joyce, I am a little confused by your subject of tornadoes and your question. If you want to know ...
Humidity3/10/2005
  Q: Can you explain to me, please, just what is meant by, say, 50% humidity? I ass/u/me that it doesn't ...
  A: Don, go to http://daphne.palomar.edu/jthorngren/measures.htm for some humidity info. It does not ...
ice at the north and south poles3/3/2005
  Q: As water evaporates from the oceans and rivers from around the world it is picked up by the winds ...
  A: Mark, general circulation cells (Hadley cells) move moisture around pressure systems, not around the ...
weather2/25/2005
  Q: if hot air rises, why is it hotter in the cities & desserts & colder in the canyons?
  A: Sean, this is not always true. I would need to know more about the particular times and locations ...
Is there a difference between...2/22/2005
  Q: Is there a difference between a tornado and funnel clouds? If so could you explain? Thanks
  A: Marcella, a funnel cloud is a tornado that is not touching the ground. Some funnel clouds never ...
snow2/19/2005
  Q: My buddy and I have been having an argument over whether a "dusting" of snow is more (or less) than ...
  A: Bob, the term "trace" is an official term defined as not enough precipitation to cover an exposed ...
rain, snow, sleet, hail2/14/2005
  Q: Here's a dumb one for you. After 37 years, I still don't really know! What is the actual ...
  A: Chris, Most all precipitation begins as snow or ice crystals that form about 20000 feet above the ...
sun and rain1/29/2005
  Q: Why will it start to rain harder just prior to sunrise and then cease when the sun comes up?
  A: Tyson, I am not quite sure where your information comes from, but as far as I know it is not a fact ...
Millibars1/23/2005
  Q: What differences might I expect to see between the weather conditions on the surface in my city and ...
  A: Michael, Besides the obvious pressure difference, it will be colder and usually more wind. Go to ...
Tsunami1/21/2005
  Q: Do you know the origin of the word Tsunami? Is it Hawaiian? JApanese? Polonesian? Other? Thanks ...
  A: Jo, Let me quote the 20-volume Oxford English Dictionary definition of “tsunami”: “A brief series ...
Relative Humidity1/17/2005
  Q: I am responsible to ensure that the relative humidity is below 85% when pavement markings are ...
  A: Mike, The relative humidity that is measured at the local airport is measured between 6 and 10 feet ...
Sunsets1/9/2005
  Q: Why are autumn sunsets much more spectacular than spring sunsets, when presumably the angles of the ...
  A: Paul, the only I difference I can think of (speaking in generalities) is that from winter to spring ...
Tidal Waves12/30/2004
  Q: What is the difference between a Tidal Wave and a Sunami. also, years ago, what was the ...
  A: Bill, I am not qualified to answer your question. You would need to contact an oceanographer or a ...
The circle around the moon12/26/2004
  Q: Its christmas night in San Diego California. We were sitting outside and looked up at the moon. ...
  A: Jacalyn, you were probably viewing a corona (or a halo). Light reflecting through the moisture of ...
snow question12/5/2004
  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: Paul, the weather is cyclical and occurs for days between events (one cold front to the next) or ...
FROST11/16/2004
  Q: MY HUSBAND AND I HAVE A DISAGREEMENT ABOUT FROST. I SAY IT HAS TOO BE 32 DEGREES FOR FROST. HE ...
  A: Anna, the disagreement occurs because the "official" temperature as measured at a nearby location ...
Rain in Deserts11/14/2004
  Q: I am rather frustrated with your response to our question. Our 1st grade daughter is curious about ...
  A: Dionne and Elaine, when I receive several similiar questions from different people it is considered ...
Oklahoma weather11/13/2004
  Q: I need to know what direction the storm systems in Oklahoma move. I have always been told(and ...
  A: Alanda, Weather systems rarely move from east to west across Oklahoma, but it is POSSIBLE, not ...
Clouds11/12/2004
  Q: Clouds are lite enough to float in the sky why do they not continue to ascend even higher . It seems ...
  A: Bill, when clouds form they reach an altitude in the atmosphere where they are in equlibrium with ...
Frost11/4/2004
  Q: How can frost form when the temperature is above 32 degrees? The low in my area last night was 36, ...
  A: Jo, the temperature you heard about as the "low" was recorded 6-10 feet above the ground at an ...
barometer and rain11/4/2004
  Q: My question is, how does a barometer corilate with rain. Is ther a scale that can be used if a ...
  A: James, There is no direct corelation between pressure and precipitation. Lower pressures are ...
relative humidity11/1/2004
  Q: Could you please tell me what is meant by the phrase 'relative humidity' and how is it determined? ...
  A: Ed, Basically, R.H. is a measurement of the amount of moisture in the air. It is a complicated ...
wind10/17/2004
  Q: walter..i have just moved to minnesota from london and experiencing my first winter here. its cold. ...
  A: Daniel, go to http://ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/fw/home.rxml for a good explanation about ...
Climate differences10/11/2004
  Q: I'm a 37-year-old female from Philly, PA and I was wondering why is it that if two states are on the ...
  A: Kim, latitude is way down the list of factors relating to a locations climate. Topography, location ...
Bad Weather10/1/2004
  Q: I live in South-east Florida. We had two hurricanes, an F2, and a F3, hit our house. My wife wants ...
  A: David, If it is possible for you to move there are places that are less likely to experience violent ...
Your Insight10/1/2004
  Q: I am a senior in highschool, and I will soon be joining the USAF to make my dream of being a ...
  A: Meg, When I enlisted I had no idea what I would be doing. After a series of tests I was offered air ...
"sticking"9/26/2004
  Q: i was reading "to kill a mocking bird" and it was snowing. a lady thought it was "sticking" ...
  A: Michelle, Sticking means that the snow is wet enough to accumulate. When it is bitterly cold snow ...
travel9/16/2004
  Q: I have rather an unusual question regarding air travel and weather. I've only been on 2 ...
  A: Tim, I do not have the space here to answer this question in detail. Got to ...
USAF weather7/26/2004
  Q: What was it like being a weather observer in the AF? I hear its easy to get into because of the ...
  A: Mike, I'm not sure about now, but when I enlisted it was rather difficult to get into weather (they ...
WEATHER7/23/2004
  Q: Why is it so humid in summer in the Washington D.C. area and so dry in the forests out west?
  A: Al, the humidity in D.C. is mostly due to the closeness of a water source (both the bay and the ...
weather7/21/2004
  Q: Do the prevailing winds travel from east to west or west to east in Maryland? Also, does the ocean ...
  A: Joe, the prevailing wind changes with season. Go to ...
Air front movements6/11/2004
  Q: I would like to ask a question for a phenomenon that I cannot understand. Can you please tell me ...
  A: George, The atmosphere and the earth rotate as one. There is no dragging of air. Air movement is ...
TAF4/28/2004
  Q: Respected sir I am Faisal nazir, flight dispatcher, from Pakistan . I have some questions about TAF ...
  A: Faisal, BECMG is an abbreviation for becoming (soon to be) followed by the time frame of expected ...
Barometric Pressure4/24/2004
  Q: my name is Joe, and I live in Henderson, Nevada, 10 miles outsside of Las Vegas. A few weeks ago I ...
  A: Joe, I wouldn't put much trust in those generalities for the type of weather associated with certain ...
Meteorology Career3/28/2004
  Q: I believe I emailed you once before but when i reformatted my computer, I lost all the resources you ...
  A: David, sorry to hear of your computer snafu. The following links are great for career info: ...
weather forecast and sunset question3/7/2004
  Q: Mr. Denman, Harry, I plan on proposing to my girlfriend in the coming week. She loves sunsets, so ...
  A: Carter, First things first - congratulations! Beautiful sunsets are in the eyes of the beholder so ...
thunder2/26/2004
  Q: I live in North Carolina what does it mean if it thunders while it is snowing and the wind blows?
  A: Missy, the thunder is because the atmosphere is unstable, which also is the reason for the wind and ...
weather forecasting2/18/2004
  Q: hope to find u in good health.i have a question regarding weather forecasting. can u kindly suggest ...
  A: Abdul, I am sorry but I do not know of a web site that forecasts for a month into the future. Be ...
beaches1/28/2004
  Q: I live near Los Angeles, typical suburban neighborhood. I don't get to the beach very often and ...
  A: Tim, due to the proximity of the water it is more LIKELY to have higher humidities (which include ...
Clipper Systems1/15/2004
  Q: I live in Michigan, and the meteorologists recently talked about a "clipper system" that came into ...
  A: Carl, go to http://www.weathernotebook.org/transcripts/2001/01/12.html for a great explanation of an ...
Weather11/20/2003
  Q: 1) does sound travel at the same rate ospeed over ground as water? 2)Is ...
  A: Billy, Sound travels at different speeds in air with different temperatures and travels at different ...
weather9/9/2003
  Q: i've been really stuck on this question and was wonder if you can help me a.s.a.p.create a graph ...
  A: Sina, I usually do not help with homework problems but will make an exception this time. Go to ...
lightening9/6/2003
  Q: Roughly how many lightening strikes hit the ground a year? An answer for the UK or the USA or the ...
  A: Dan, - Florida ranks first in the Umnited States for lightning, with an average of 100 thunderstorm ...

All Questions in This Category

Email this page
     
User Agreement | Privacy Policy | Kids' Privacy Policy | Help
Copyright  © 2006 About, Inc. AllExperts, AllExperts.com, and About.com are registered trademarks of About, Inc. All rights reserved.