Supercell thunderstorm over fields. A supercell thunderstorm is a severe long-lived storm within which the wind speed and direction changes with heigh

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Supercell thunderstorm over fields. A supercell thunderstorm is a severe long-lived storm within which the wind speed and direction changes with height. This produces a strong rotating updraft of warm air, known as a mesocyclone, and a separate downdraft of cold air. This was the most prolific supercell thunderstorm of 2009. The storm was over 30 miles (48 kilometres) wide and persisted for 9 hours. Photographed near Valentine, Nebraska, USA, on 13th July 2009.

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Size: 5616px × 3744px
Photo credit: © ROGER HILL/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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