Kelvin-Helmholtz instability, which transforms fair weather clouds into the form of crashing ocean waves, is a rare and wondrous phenomenon.

One of the best examples I’ve ever seen is in a video making the rounds on Facebook. The footage – embedded below – was taken at Diamond Peak ski resort in the Lake Tahoe region of Nevada, and posted by Darren Springer on March 11.

The wave-breaking action and structure are awesome.

How does this kind of instability happen? We talked about it in our August 22 post on weird clouds: