Multiple tornadoes struck northeastern Arkansas late Friday, according to reports from the National Weather Service.

Violent tornadoes ripped through parts of the U.S., wiping out schools and toppling semitractor-trailers in several states.

The threat of tornadoes moved east into the Mississippi Valley and Deep South on Saturday, a day after a massive storm system moving across the country unleashed winds that damaged buildings, whipped up deadly dust storms and fanned more than 100 wildfires.

Severe storms in Arkansas have caused at least three people to die and injured 32 others across eight counties.

The dynamic storm from Friday through Sunday had earned an unusual “high risk” designation from weather forecasters.

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.