51.5 MB (1.2 MB compressed)
5197 x 3465 pixels
43.9 x 29.5 cm ⏐ 17.3 x 11.6 in (300dpi)
ROGER HILL / SCIENCE PHOTO LIBRARY ROGER HILL / SCIENCE PHOTO LIBRARY
Supercell thunderstorm and tornado over fields on the outskirts of a town. 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. Photographed near LaGrange, Wyoming, USA, on 5th June 2009.
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