Tornado Alley
It has also been asserted that there are numerous Tornado Alleys. In addition to the Texas/Oklahoma/Kansas core, such areas include the Upper Midwest, the lower Ohio Valley, the Tennessee Valley and the lower Mississippi valley. Some studies suggest that there are also smaller tornado alleys located across the United States.
Tornado myths
It is often thought that tornadoes only occur in North America. The majority of recorded tornadoes do occur in the United States; however, tornadoes have been observed on every continent except Antarctica.