Did you see any of these clouds this weekend? Lisa Towns snapped this picture of KHI clouds (Kelvin-Helmholtz billows) in Ruston Saturday evening.
Think of these clouds as "eddies" or "waves" in the sky. They form when two layers of air are moving at different speeds. They top layer is moving faster than the lower layer. We had a very turbulent atmosphere on Saturday which easily formed the "Kelvin-Helmholtz Wave Clouds."