WEATHERVIDEOHD.TV / SCIENCE PHOTO LIBRARY WEATHERVIDEOHD.TV / SCIENCE PHOTO LIBRARY
Timelapse footage of classic mountain lee wave rotor clouds. The rotation seen in mountain lee waves can last for hours, and is due to the flow of air down the slope of the mountains. Rotors are associated with great turbulence inside the cloud, and are avoided by pilots. Filmed in Colorado, USA, in spring.
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