Cumulonimbus cloud, with towering anvil head and rain storm, over San Francisco Bay, California, USA. Cumulonimbus clouds form when atmospheric instab

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Cumulonimbus cloud, with towering anvil head and rain storm, over San Francisco Bay, California, USA. Cumulonimbus clouds form when atmospheric instabilities allow strong updrafts of warm, moist air to keep rising and condensing, up to altitudes of around ten kilometres. The end result is typically a storm with thunder and lightning. Photographed in mid-afternoon in November.

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Size: 5156px × 3437px
Photo credit: © STEPHEN BURT/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: -, 21st, 29, 2018, afternoon, america, american, anvil, anvilhead, autumn, bay, california, cb, century, cloud, cloudhead, coast, coastal, coastlines, cumulonimbus, francisco, geographical, geography, island, islands, land, marine, maritime, meteorological, meteorology, north, november, ocean, pacific, rain, raining, san, sea, sky, states, storm, towering, united, usa, water, weather