A powerful storm system that tore across the United States in recent days is poised to move offshore Monday into the Atlantic, but in its wake are devastated communities across states hit with violent tornadoes,

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.

Austin Police said at least five people died and 11 were hurt in a crash involving at least 17 vehicles, including semi-trucks, on Interstate 35 in north Austin late Thursday night. "We look forward to continued engagement ... to support public health, build consumer trust and promote consumer choice."

Several states throughout the Midwest and South reported tornadoes overnight, with widespread damage and multiple fatalities reported in Missouri. KSDK's Megan Kernan and Travis Cummings report on the latest damage.