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.
List of 2008 Minnesota tornadoes
The following is a list of 2008 Minnesota tornadoes. Minnesota is a state located in the North Central United States along the northern edge of Tornado Alley, and on average receives 24 tornadoes per year. 2008 was a more active year historically, with 43 confirmed tornado touchdowns. Thirty-eight of the tornadoes (or 88%) were considered "minor", rated EF0 or EF1 on the Enhanced Fujita scale. The remaining five tornadoes were rated as "significant", at EF2 or EF3.