Thunderstorms, some strong, this evening through Wednesday afternoon; storms can bring hail and damaging winds Details >
May 20, 2013; 10:24 AM ET Be extra alert about the weather because dangerous thunderstorms threaten.
A large tornado sent Oklahoma City residents scrambling Monday, the day after several tornadoes touched down in the Midwest killing two people in Shawnee.
More than 20 tornadoes were reported by the National Weather Service with hundreds of hail and wind reports Sunday afternoon through Sunday night.
Severe storms may erupt from Oklahoma to Wisconsin on Monday as the storm system that spawned several tornadoes across the Plains on Saturday and Sunday shifts slowly to the east.