Cloud helix

Rainbow cloud helix

Asperatus Clouds Over New Zealand.

Clouds

Spectacular shelf cloud from Morton IL

SUNSET!

clouds

A rare cloud formation called a mammatus, where clouds take on a  bubble-like shape, appeared in the skies above Regina, Saskatchewan in Canada following a thunderstorm on June 26.

spectacular!

✯ Clouds

Strange cloud formations...

Awesome Harvest Moon

An Amazing Storm (what's also amazing is how this image, a small piece of screen, can convey such bigness) / stunning nature photography

Above the clouds: Savannah London Looks like the clouds I was up in when the engines went out on the plane...beautiful clouds tho

Cloud spiral in the sky. An Iridescent (Rainbow) Cloud in Himalaya. The phenomenon was observed early am October 18, 2009.

Moon and Clouds

WEATHER PHENOMENON: The Sky Is Falling In Bozeman, Montana - Stunning And "Unusual" Shelf Cloud Formation-- Oct. 1, 2013

Clouds trail - Ibiza, Spain

Chile Puerto Natales spectacular lenticular cloud at sunset by Dave Curtis, via Flickr

Beautiful photography: Amazing Rain Photography Part 5

Lenticular Clouds Above Washington Credit & Copyright: Tim Thompson http://apod.nasa.gov/apod/ap090203.html# @Maxim Maximkin another great example of this cloud formation