WEATHERVIDEOHD.TV / SCIENCE PHOTO LIBRARY WEATHERVIDEOHD.TV / SCIENCE PHOTO LIBRARY
Timelapse footage of mountain wave clouds, remaining stationary as the wind blows through them. These clouds form downwind of a mountain range, whose presence leads to the formation of a wave of air, with clouds forming at the crests of the wave where the temperature is below the dew point. Filmed in Colorado, USA, in winter.
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