Tornado Alley
Although the official boundaries of Tornado Alley are not clearly defined, its core extends from northern Texas, Oklahoma, Kansas, Nebraska, into South Dakota. States such as Missouri, Iowa, Minnesota, Wisconsin, Illinois, Indiana, and western Ohio are sometimes included in Tornado Alley. Some research suggests that tornadoes are becoming more frequent in the northern parts of Tornado Alley where it reaches the Canadian prairies.
Manhattan, Kansas
The state of Kansas falls within an area sometimes called Tornado Alley. The most destructive tornado in Manhattan touched down at approximately 10:30 pm on June 11, 2008. Thirty-one homes and several businesses were destroyed by the EF4 tornado. Kansas State University's campus incurred about $20 million in damage – a number of university buildings sustained significant damage and the tornado's winds destroyed the Wind Erosion Laboratory's garage. No one was killed.