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08-19b 08_19b.jpg |
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| Title: | TORNADOES ARE ASSOCIATED WITH DOWNDRAFTS AND UPDRAFTS |
| Caption: | (b) A classic tornado extending from the wall cloud of a supercell thunderstorm near Alfalfa, Oklahoma. A clear slot immediately in front of the wall cloud is formed by a downdraft which may contribute to the tornado development. The wall cloud is formed by an updraft. Both the wall cloud and tornado are typically silhouetted against lighter sky where very little rain is falling from the storm. (NOAA Photo Library, NOAA Central Library; OAR/ERL/National Severe Storms Laboratory [NSSL]) |
| Keywords: | atmosphere, air pressures, atmospheric pressures, lows, tornadoes, cumulonimbus clouds, winds, funnel clouds |