Such a dramatic sky today, had to snap some pictures out of the car window.
What causes those flowing, sharp edges? Is it some kind of lenticular variety? It's been pretty windy, I bet it has something to do with turbulence, at least.
Took a photo of these weird, “upside down” clouds recently:
There goes the neighborhood.
Did some googling, and found out about “our newest cloud type”, the Asperitas. Then found this stunning (and kinda scary) time-lapse. It looks just like underwater footage of waves breaking!