Since I’m currently reading about atmospheric circulations and how eddies are formed, I thought I’d share a picture of billow clouds with you guys. Unfortunately, I can’t say I’ve ever seen these in real life, but they are quite beautiful. (This photo is from WebEcoist, where there’s also an article attached.)
An “eddy” is basically just a whirl of air. When an eddy forms on the downwind side of a mountain in an area where wind shear is present (wind shear is when the wind suddenly changes direction or speed), these billow clouds can form. These clouds are the visual that means Kelvin Helmhotlz waves are present.
Fun stuff, am I right?