The National Weather service issued a preliminary report indicating extraordinarily wide and long-running tornados were responsible for the damage in Comfrey, Le Center, and St. Peter on March 29, 1998. The review identified a total of seven seperate tornadoes which hit Brown, Nicollet, Le Sueur, Rice, and Dakota counties. Two, or possibly three, of the tornadoes were especially destructive "multiple vortex" tornadoes.

Frequently referred to as the 1998 Comfrey–St. Peter tornado outbreak, 14 tornadoes (including an F3 & F4) wrought destruction in southern Minnesota on March 29, 1998. More than 3,000 buildings were damaged or destroyed by the tornadoes. The towns of St. Peter and Comfrey were utterly devastated. Storms left two people dead and dozens injured.