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.
Moore, Oklahoma
The Oklahoma City metropolitan area (of which Moore is a part) is located in Tornado Alley and is subject to frequent and severe tornadoes and hailstorms, making it one of the most tornado-prone major metropolitan areas in the world.