10 Strangest Clouds on Sky. Photos gallery

roll cloud
A roll cloud near Lake Hendricks, Minnesota, on June 20, 2015.
Facebook/Thomas L. Stritecky

Lenticular cloud
Lenticular cloud taken in Washington State of Mt. Rainier by Jim George of Puyallup

Mammatus clouds
Mammatus clouds by Jef Harrison

Undulatus Asperatus Clouds
Undulatus Asperatus Clouds by NYKat33

Supercell, fantastic structure
Supercell, fantastic structure by Tim Holmes

Shelf cloud
Shelf cloud associated with a squall line moving over Belgian countryside Courtesy of Erwin Klein

A wall cloud
A wall cloud is seen on a storm that eventually produced tornadoes in Kansas on May 25, 2012. Photo by CWG photographer Ian Livingston

Kelvin-Helmholtz Wave Clouds
. Kelvin-Helmholtz Wave Clouds over Capitol Hill, Seattle by Chat Noir Photographie

Ash cloud. The Puyehue volcano in Chile erupted
Ash cloud. The Puyehue volcano in Chile erupted by Ian Salas/EPA

Mushroom Clouds, atomic bomb
Mushroom Clouds, atomic bomb source: Gizmodo