Asperatus clouds

A new cloud classification — the first new classification since 1951.

First seen in 2005/2006

Clouds look like the agitated surface of the ocean — called undulus asperatus, Latin for “rough” [wiki]

Discovered by Jane Wiggins of Des Moines, Iowa, who snapped a digital photo from a downtown office building in June 2006. [pic]


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UK Guardian’s gallery

Large photos in gallery at io9

In the media

AP article

USA Today

National Geographic, June 2009 (illustrated)

CBS news story includes criticism of new cloud category

First published on July 8th, 2009 at 2:57 pm