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Photograph of cirrus clouds
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Courtesy of Lisa Gardiner

Cirrus

Cirrus clouds are the most common of the High Cloud (5000-13000m) group. They are composed entirely of ice and consist of long, thin, wispy streamers. They are commonly known as "mare's tails" because of their appearance.

Cirrus clouds are usually white and predict fair weather.


Last modified September 25, 2007 by Becca Hatheway.

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