A new tornado watch was issued Sunday for parts of West Virginia, Ohio and PA.
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.
The same storm system delivered raging winds to the Plains states earlier, leading to wildfires and severe dust storms that left more than a dozen people dead in Kansas, Texas and Oklahoma.
Overall, at least 40 deaths have been recorded from the cross-country storm system.
Tornado damage consistent with winds of 165 mph have been recorded in Cave City, Arkansas, according to the National Weather Service's tornado survey team.
"This is the very top of the EF3 scale," the NWS of Little Rock said in a post on X.
Additional surveys will continue over the coming days, the NWS said.
A line of severe thunderstorms continues to sweep across parts of the South and has already triggered multiple confirmed tornadoes in Mississippi, with damage over the past few hours.
There have been over 30 reported tornadoes across 6 states -- Missouri, Arkansas, Mississippi, Louisiana, Illinois and Indiana -- in the last 24 hours.
A "particularly dangerous situation tornado watch" remains in effect across much of Mississippi and parts of eastern Louisiana until 6 p.m. CT. Another is in effect across much Alabama, until 8 p.m. CT, including cities such as Birmingham, Tuscaloosa, Huntsville and Montgomery.
A line of severe storms is sweeping east across the region bringing the threat of strong tornadoes, damaging wind gusts, and large hail. Any stronger, slow-moving storms bringing torrential rain could also trigger areas of dangerous flash flooding in the coming hours.
The most dangerous tornado threat is now through the evening hours. The strong storms will continue to sweep across eastern Alabama and into Georgia Saturday night.
-ABC News' Daniel Peck
Arkansas Gov. Sarah Huckabee Sanders spoke to President Donald Trump on the phone Saturday afternoon following Friday night’s tornados in the state, she said in a post on X.
Huckabee Sanders served as Trump's press secretary during his first term.
"He said to tell the people of Arkansas he loves them and he and his administration are here to help with whatever we need following last night’s tornadoes," she said.
-ABC News' Kelsey Walsh
Multiple tornadoes are currently on the ground in Mississippi with two "particularly dangerous situation" tornado watches currently in effect.
A large and extremely dangerous tornado was located over Mendenhall, in central Mississippi, moving northeast at 45 mph. A confirmed large and extremely dangerous tornado was located 7 miles west of Tylertown, in south-central Mississippi, moving northeast at 50 mph, according to the National Weather Service.
A third confirmed tornado was located near Okolona, in northeastern Mississippi, moving northeast at 40 mph
Another particularly dangerous situation tornado watch has just been issued across much Alabama, until 8 p.m. CT. This includes cities such as Birmingham, Tuscaloosa, Huntsville and Montgomery.
This new watch is east of the existing watch across much of Mississippi and parts of eastern Louisiana until 6 p.m. CT.
