Severe thunderstorms will rumble across a large swathe of the U.S. Monday into the evening, with the most destructive potential in the upper Midwest. On Monday, 36 million people are under the risk of severe storms from northern Minnesota to southwest Texas,

"A regional severe weather outbreak still appears possible across the Upper Midwest, with a threat of strong to intense tornadoes, very large hail, and swaths of damaging winds," said NOAA's Storm Prediction Center (SPC) in an update issued at 7:37 a.m. Monday.