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Tornado Alley, also known as Tornado Valley, is a loosely defined location of the central United States and Canada where tornadoes are most frequent. [1] The term was first used in 1952 as the title of a research project to study severe weather in areas of Texas , Louisiana , Oklahoma , Kansas , South Dakota , Iowa and Nebraska .
People live closer together in the South than in the traditional area associated with Tornado Alley, meaning that more significant numbers of people can be in the path of a tornado.
A tornado is a violently rotating column of air in contact with the surface and a cumuliform cloud base. Tornado formation is caused by the stretching and aggregating/merging of environmental and/or storm-induced vorticity that tightens into an intense vortex. There are various ways this may come about and thus various forms and sub-forms of ...
Tornado alley has changed and shifted over the years, but as of 2023 Accuweather lists eight states as being part of this area with a unique combination of geographic and meteorological factors ...
Tornado Alley, a cluster of states in the central U.S. where tornadoes are most likely to occur, is shifting eastward, according to recent research from Northern Illinois University.
Two weeks after the April 14–16 event, Dixie Alley was the epicenter of the 2011 Super Outbreak, which was the largest tornado outbreak ever recorded, as well as the fourth-deadliest outbreak in United States history, with over 300 people dead. [19] The Easter 2020 Tornado Outbreak also happened in Dixie Alley.
The concept that tornado alley may be shifting eastward is an idea that's percolated for years, Wilson said. He joked that he's received something like 75 media requests on the topic this year alone.
Date: 1994 and 1995: Location: Tornado Alley: Also known as: Verification of the Origins of Rotation in Tornadoes Experiment 1: Outcome: Documented an entire tornado, which, in conjunction with deployment of the NEXRAD system, helped the National Weather Service to provide severe weather warnings with a thirteen-minute lead time, and reduce false alarms by ten percent.