Van Gogh clouds! Like breaking ocean waves. They are called Kelvin Helmholzt clouds, aka billow clouds or shear-gravity clouds It’s widely believed that these waves in the sky inspired the swirls in Van Gogh’s masterpiece Starry Night. Here’s a special kind of cloud known to scientists as a Kelvin Helmholtz cloud. These clouds look like breaking ocean waves, with the rolling eddies … Continue reading Clouds that look like ocean waves. What is it?