Millions of Americans across the country are on alert for a severe weather outbreak as violent, long-track tornadoes with damaging winds of up to 80 mph and large hail are expected across the Midwest and South with the cross-country storm moving east.

A tornado watch is in effect for portions of southeastern Georgia, eastern South Carolina, and southeastern North Carolina, according to the Storm Prediction Center, and severe thunderstorms in Georgia and South Carolina will move across the watch area.