May 20, 2013; 10:24 AM ET Be extra alert about the weather because dangerous thunderstorms threaten.
According to the state medical examiner's office, 37 were killed in a massive Oklahoma tornado and the death toll expected to rise in Moore, Okla.
Thunderstorms, some strong, this afternoon through Wednesday afternoon
Keep up to date on the severe thunderstorm outbreak unfolding across the Midwest and the Plains by tracking local radars.
Extended Weather forecast overview for the North Central United States
Heavy rain returning to the northern Plains will generate a renewed flood threat for the Red River.
Evan Myers and Elliot Abrams talk heat and humidity.
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.
Be extra alert about the weather because dangerous thunderstorms threaten.
Keep up to date on the severe thunderstorm outbreak unfolding across the Midwest and the Plains by tracking local radars.
Read Story >
Several tornadoes touched down from Oklahoma to Iowa, including near Wichita, Kan., and Oklahoma City, on Sunday.
Read Story >