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.

Severe weather, including tornadoes, caused at least 34 fatalities across six U.S. states, with Missouri experiencing the highest death toll. More than 150,000 people remain without electricity. Missouri's Butler County faced extensive property damage.