Missouri, Mississippi, Arkansas, Alabama and North Carolina all reported deaths from tornadoes or severe storms.More than 90 tornadoes, including at least nine EF-3 and three EF-4 tornadoes, have been confirmed.

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.

A multiday severe weather outbreak could blast cities across the central and eastern U.S. with thunderstorms capable of producing large hail and potential tornadoes.