Tens of millions of Americans from Texas up toward the Great Lakes face the threat of severe weather Tuesday, including the risk of hail, winds that could reach hurricane force, and some tornadoes. A weather system moving into the Plains is expected to spark widespread thunderstorms stretching from central Texas to the Mississippi River Valley and into the Midwest. According to the National Weather Service’s (NWS) Storm Prediction Center (SPC), at least 60 million Americans