We received several photos of dramatic mammatus clouds this week, including two snapped in northern Texas on the same day the tornado struck near Oklahoma City.
Mammatus clouds are pouch-like protrusions hanging from the undersides of clouds, usually thunderstorm anvil clouds but other types of clouds as well. Composed primarily of ice, these cloud pouches can extend hundreds of miles in any direction, remaining visible in your sky for perhaps 10 or 15 minutes at a time. People associate them with severe weather, and it’s true they can appear around, before or after a storm. Contrary to myth, they don’t continue extending downward to form tornados. We received several photos of dramatic mammatus clouds this week. The first and last one on this page both were snapped in northern Texas on May 20, 2013, the same day the tornado struck in Moore, near Oklahoma City. These clouds can appear ominous. But, in a way that’s so common in nature, their dangerous aspect goes hand in hand with a magnificent beauty.
Pam Rice Phillips caught the same mammatus clouds as in the first image, above, on May 20, 2013. She’s in Granbury, Texas, which is southwest of Ft. Worth. Thank you, Pam.
source and credit a earthsky
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