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Tony Rogers
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Mammatus
Clouds Over Monclova, Mexico
Normal cloud bottoms are flat because moist
warm air that rises and cools will condense into water droplets
at a very specific temperature, which usually corresponds
to a very specific height. After water droplets form that
air becomes an opaque cloud. Under some conditions, however,
cloud pockets can develop that contain large droplets of
water or ice that fall into clear air as they evaporate.
Such pockets may occur in turbulent air near a thunderstorm,
being seen near the top of an anvil cloud, for example.
Resulting mammatus clouds can appear especially dramatic
if sunlit from the side.
Credit & Copyright: Raymundo Aguirre
May 14, 2004 |
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