May 10, 2010

Sunday, Mother’s Day, was very windy with gusts reaching 40 miles per hour. It was sunny and there were many cumulus clouds in the blue skies. But there weren’t the usual puffy cumulus clouds that look like cotton balls.

 

Instead they were cumulus fractus (or fractocumulus) clouds, sometimes also called "scud"  by pilots. Fractus clouds are clouds that are torn by high winds and look very much like cotton balls that have been torn apart by fingers.   They change constantly and often move rapidly across the sky.

Posted by: Seymour Simon

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