Maps show how “Tornado Alley” has shifted in the U.S.

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   There’s growing evidence that “Tornado Alley,” the area of the United States most susceptible to tornadoes, is shifting eastwards, according to a recent study looking at tornado formation patterns.

   “Tornado Alley” is a shorthand term that has typically described the central Plains region of the United States, but according to the study, published in April in the Journal of Applied Meteorology and Climatology, parts of the eastern U.S. now face the “greatest tornado threat.” Tornado activity is now much more likely to impact the Midwest and Southeast, the study said.

   The shift has been ongoing since 1951, according to the study, which used information from two different datasets, each spanning 35 years, to determine where and when tornadoes have been forming. The study looked at tornadoes rated F/EF1 or stronger. (A tornado is considered EF1 on the Enhanced Fujita Scale if its wind gusts are estimated at 86-110 mph, based on the amount of damage. The scale runs from EF0 up to EF5 for the most damaging twisters.)

   **Read more:** [https://www.cbsnews.com/news/maps-show-tornado-alley-shift-storms-weather/?ftag=CNM-05-10abh9g](https://www.cbsnews.com/news/maps-show-tornado-alley-shift-storms-weather/?ftag=CNM-05-10abh9g)