TOM WARNER / WEATHERVIDEOHD.TV / SCIENCE PHOTO LIBRARY TOM WARNER / WEATHERVIDEOHD.TV / SCIENCE PHOTO LIBRARY
Timelapse footage of the passage of a thunderstorm showing mammatus cloud formations. Mammatus clouds are rounded pockets of cloud on the underside of clouds, typically on violent cumulonimbus thunder clouds. As such, they are often associated with heavy rain, lightning and turbulence. Filmed over South Dakota, USA, in summer.
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