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Originally posted by InvisibleObserver
Nice pics and vid.
I think these are called Mammatus clouds, I could be wrong, I'm not a cloud expert.
I've seen them a number of times in the states, kinda freaky when you do see them overhead.
en.wikipedia.org...
Undulatus asperatus (or alternately, asperatus) is a cloud formation, proposed in 2009 as a separate cloud classification by the founder of the Cloud Appreciation Society. If successful it will be the first cloud formation added since cirrus intortus in 1951 to the International Cloud Atlas of the World Meteorological Organization.[1] The name translates approximately as roughened or agitated waves.