America's Tornado Alley shifting east, new research indicates

Dan Weinbaum
October 18, 2018 - 7:25 am

ID 93697464 © Dan Ross |

Tornadoes are on the move, according to a study that shows activity is decreasing in Kansas, Oklahoma and Texas.

Researchers looked at data that has been gathered since 1979. Twisters are beginning to spin up more in states along the Mississippi River, in the Ohio Valley and farther east. 

The biggest increase has been taking place in states that border the Mississippi River. Scientists are not sure why, although they are looking at drier conditions in the Great Plains. Dry lines, with dry air to the west and moist gulf air to the east, are where tornadoes tend to form.

Severe thunderstorms, which include tornadoes, hail, lightning and strong winds, cause an average of $5.4 billion in damage each year in the U.S.

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