Recently this type of cloud formation was named "undulatus asperatus". Originally shot in infrared, as black and white. The blue wash was a reflection of the mood I felt while taking this storm's image. I have posted another taken in color with my Leica camera, in my gallery.
These clouds formed over former Native American lands, in Indiana. I keep re-discovering new spirit images in the clouds. Have you noticed any?
As always feel free to download, just give me photo credit.