Beautiful and unusual clouds

From lava lamp-like mammatus clouds to tubular wave clouds to eye-catching roll clouds, the skies overhead rarely look like this. Lucky for us, Flickr members were in the right place at the right time to snap these incredible shots.

Epic Mammatus
Stormlover87Epic Mammatus
Strange Cloud Formation
pws5252Strange Cloud Formation
Roll Cloud
wbirt1Roll Cloud
Pirata en el cielo
"Special Moments"Pirata en el cielo
Thunderhead
Nicholas_TThunderhead
Strange cloud formations
Chris_JCStrange cloud formations

Check out this selection of beautiful and unusual clouds from around the world, and please share photos from your collection of incredible clouds.

Are you passionate about taking great weather photos? Join the Project Weather group on Flickr to submit your photos, and your work could be featured in the award-winning Yahoo Weather app.