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NOAA Photo Library Image - nssl0044

Wall cloud - Towering cumulus with rain-free base. A wall cloud, a lowering of the cloud base underneath main storm updraft, forms in this thunderstorm. Tornadoes can form out ot the wall clouds.

Image ID: nssl0044, NOAA's National Severe Storms Laboratory (NSSL) Collection
Photo Date: 1982
Credit: NOAA Photo Library, NOAA Central Library; OAR/ERL/National Severe Storms Laboratory (NSSL)

High Resolution Photo Available





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April 23, 2007