Mississippi was pounded Friday and Saturday by tornadoes, and the storms are expected to produce even more supercells before it moves out.

The weather cut a swathe of destruction across an area of the country that is home to more than 100 million people.

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 moveing east.