Cirrus, Cumulus, Asperatus?

Whether on their own or back lit by the sun or moon, clouds can be beautiful as well as informative. Looking at strato-cirrus mares' tails one can determine the likelihood of precipitation 36 hours hence. And who hasn't heard: "Red sky in morning, sailor take warning. Red sky at night, sailor's delight"?

Now a new cloud type has been proposed: Asperatus


And they are a wild and turbulent--and beautiful--bunch based upon the photos at the link.

(h/t Ann Althouse posting at Instapundit this week)