These violent storms occur around the world, but the United States is a major hotspot with about a thousand tornadoes every year.
"Tornado Alley," a region that includes the area in the eastern state of South Dakota, Nebraska, Kansas, Oklahoma, northern Texas, and eastern Colorado, is often home to the most powerful and destructive of these storms. U.S. tornadoes cause 80 deaths and more than 1,500 injuries per year.
A tornado is a violently rotating column of air that extends from a thunderstorm to the ground. It's often portended by a dark,
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