Tornado Alley, the part of the Western and Midwestern United States where tornadoes are most likely to occur, is shifting eastward, and climate change is almost certainly at least partially to blame.
There is basically no part of the United States, or indeed the world (with a few exceptions), that is 100 percent safe from tornadoes. But in the U.S., the overwhelming majority of them have occurred in the so-called “Tornado Alley.” Depending on which scientist you ask (there’s no official definition), Tornado Alley extends roughly from northern Texas, northward into much of western Kansas and eastern Colorado, and into parts of Nebraska and South Dakota.