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.

Residents pounded by unusually vicious weather across parts of the U.S. are surveying damage from violent tornadoes, high winds and blinding dust storms. A massive storm has decimated homes and

Meanwhile, the severe weather threat will linger through Sunday from Florida northward into the upper Ohio River Valley, forecasters warned.