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 powerful storm system sweeping through the central and southern United States has resulted in the deaths of at least 33 people.

"Get to the sturdiest structure you have access to and remain in place until the storms pass," the NWS told residents in Alabama on Saturday night, when multiple tornado warnings were issued. At least 250,

A tornado outbreak swept across 13 states Friday and Saturday, with dozens of tornadoes responsible for 24 deaths and the destruction of countless homes and businesses across 12 states. It was the deadliest tornado outbreak since March 31 - April 1,

Residents and work crews in the South and Midwest are beginning to clean up and survey the destruction from a three-day outbreak of severe weather. The outbreak kicked up a devastating combination of wildfires,