Tornadoes in the United States
The Midwestern states are very prone to tornado activity, as they are part of "Tornado Alley." States included in the area that are hit by tornadoes the most are Oklahoma, Kansas, Missouri, Nebraska, Iowa, and South Dakota. The Midwestern States are often hit by tornadoes during the late spring and early summer months, especially the months of May and June. This is due to the aforementioned air mass moving northward into the Midwest and combining with another air mass that move southward from Canada. This creates unstable air, creating the potential for storms to strike the most during these months. The frequency begins to decrease in the middle of the summer, as the air mass moves northward into the Great Lakes states.
Tornadoes of 2006
Tropical Storm Alberto made landfall on June 13, but was producing squalls well before then. Alberto's bands produced a small tornado event in the southeastern United States. There were 16 tornadoes reported; four in Florida, three in Georgia, six in South Carolina and three in North Carolina. At least seven of the tornadoes were confirmed; one was an F1 and the rest were F0. One person suffered minor injuries in one of the tornadoes.