The state's largest November tornado outbreak on record took place Nov. 11, 2015. At least 19 tornadoes struck Iowa that ...

Minnesota has seen 48 preliminary tornadoes so far this year, topping its average of 46 annually between 1991 and 2010. Tornadoes generally occur from May through September, and from 2 p.m. to 9 p.m.

If you've been hearing more about tornadoes this spring than recent years, there's a reason for that: So far this year, the U.S. has seen more twisters reported by early May than in any year since ...