Stormy and sultry clouds captured in their dramatic formations above prairies, mountain ranges, and other locations across Canada and the U.S.

Share your favorite cloud photos by joining the Clouds, Storms, Sunsets & Sunrises group or other cloud-loving groups.

Photos from noahbw, david haggard, justbelightful, IanDMcGregor, cord1964, foto.holic, and floralgal.