Tornado Alley
States such as Missouri, Iowa, Minnesota, Wisconsin, Illinois, Indiana, and western Ohio are sometimes included in Tornado Alley. Research suggests that tornadoes are becoming more frequent in the northern parts of Tornado Alley where it reaches the Canadian prairies.
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.