September 5th, 2022 at 3:17PM

geometrymatters:

Kelvin-Helmholtz clouds

are also known as “rotor clouds” and their spiraling pattern is the effect of a cloud generating a billowing wave pattern, which is a very rare occurrence. They happen when there is a severe vertical shear between two air streams, producing the upper-level winds to blow faster than the lower-level winds.

Images © WSLS 10, Dave Throup, Vivian Knezevich

(via grumpy-gh0st)

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13,189 notes #i love clouds im really into daytime sky rn
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