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Mammatus Clouds

Distinctive clouds seen driving in East Greenbush, New York, USA. Later that night, the local news had a report about these eye-catching clouds.

 

Mammatocumulus is a cellular pattern of pouches hanging underneath the base of a cloud, typically cumulonimbus rainclouds, although they may be attached to other classes of parent clouds. According to the WMO International Cloud Atlas, mamma is a cloud supplementary feature rather than a genus, species or variety of cloud. They are formed by cold air sinking down to form the pockets contrary to the puffs of clouds rising through the convection of warm air. These formations were first described in 1894 by William Clement Ley.

Mammatus are most often associated with anvil clouds and also severe thunderstorms. Due to the intensely sheared environment in which mammatus form, aviators are strongly cautioned to avoid cumulonimbus with mammatus as they indicate convectively induced turbulence.

en.wikipedia.org/wiki/Mammatus_cloud#:~:text=Mammatus%20

 

iPhone 8 Plus. 1/1150 sec, f/1.8, ISO 20. Thanks for viewing.

 

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Uploaded on September 26, 2020