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.
Illinois State Police say five people were killed and six others injured when a van in which they were riding left a southern Illinois freeway and overturned several times.
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.