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 outbreak of February 28 – March 2, 2007
In the end, there were 56 tornadoes confirmed during the outbreak, including three EF3 tornadoes reported across three states, as well as three EF4 tornadoes; two in Alabama and one in Kansas, the first such tornadoes since the introduction of the Enhanced Fujita Scale. Total damages were estimated at over $580 million from tornadoes alone, making it the fourth-costliest tornado outbreak in US history (the figure not including damage from other thunderstorm impacts including hail and straight-line winds). Insured losses in the state of Georgia topped $210 million, making this outbreak the costliest in that state's history. Enterprise, Alabama, which was hit the hardest, sustained damages in excess of $307 million.