Tornado Track Climatology

The map below of tornado tracks from 1961 - 1990 shows that weaker tornados are more common than stronger tornadoes and that tornados in general occur more frequently in the Mid-West. The bulk of tornadoes occur in the late spring and summer, but tornado formation is possible year round in the proper atmospheric conditions are met.

Tornado tracks of confirmed tornadoes from 1961 - 1990