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Meteorology (Weather)/Why are clouds big?

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Question
Hi Mr. Rosenfeld,

I'm 3.5 years old and am wondering why clouds are so big.  Could you please tell me?

Thanks for your time,
Silly Isaac

(Note from his mom: he really wanted to sign it silly Isaac.  I'm not sure why.)

Answer
Hi Isaac

I think it's not a "silly" question so that is why I'm calling you just Isaac!

Clouds are influenced by moisture, vertical lift and/or down draft, temperatures and wind strength from horizontal flows.

So, size of clouds are dependent upon the interaction of all of the above variables.

To see all types and sizes of clouds, see:

http://www.weather-photos.net/gallery/index.php?cat=9

http://web2.iadfw.net/danb1/clouds.htm

http://www.weatheranswer.com/public/Clouds_WMO.pdf

and, more about weather!:

http://weatherknowledge.com/learn.html  

Meteorology (Weather)

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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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