Tuesday, April 30, 2013

"Tornado" Report in Forest City


"The Weather Channel says it wasn't a tornado, but a landspout. The landspout was short lived & caused no damage. A landspout is a type of "tornado" not associated with a thunderstorm. A landspout is "technically" a tornado but they form in a different way then your typical supercell thunderstorm tornadoes.   While a typical tornado develops from rotation within the supercell thunderstorm eventually coming down from the cloud making contact with the ground, landspouts develop when a circulation at the surface is picked up by the updraft of a thunderstorm and eventually that circulation is "ingested" into the cloud.   An easier way to think of it is a "tornado" forms in the cloud and eventually works its way down to the surface while a landspout begins at the surface and works its way up into the cloud.   Since a tornado is defined as a rotating column of air in contact with the earths surface and the cloud above, technically a landspout is a tornado by definition. They are usually very weak and short lived."http://www.wlos.com/shared/news/features/top-stories/stories/wlos_tornado-report-forest-city-11432.shtml

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