Did you see the really pretty clouds over North Texas this afternoon? They looked like waves in the clouds. This cloud type is called Undulus Asperatus. It has just recently been recognized as an ...

The clouds are most closely related to undulatus clouds. Although they appear dark and storm-like, they tend to dissipate without a storm forming. The ominous-looking clouds have been particularly ...

These clouds are as mesmerizing as they are ominous, and even more so when viewed in timelapse. Alex Schueth, who posted the video, calls them “crazy wave clouds,” but meteorologists know them better ...