The death toll rose to 21 people Saturday after confirmed or suspected tornadoes in at least eight states tore through the South and Midwest, leaving residents to pick up the pieces as more severe weather loomed.

U.S. power outages spanned a huge swath of the nation from Arkansas to New York and spiked to over 1 million customers on Saturday afternoon, according to poweroutage.us. The widespread outages come as bad weather moved toward the Northeast and parts Midwest and South recovered from destruction that began on Friday.

The storms left a path of damage across states including Arkansas, Alabama, Indiana, Mississippi, Tennessee and Iowa.

Meanwhile, the Ohio Valley, Northeast and mid-Atlantic braced for strong winds and severe thunderstorms, the National Weather Service forecasted. Isolated hail, scattered wind gusts up to 70 mph and a couple tornadoes are possible as severe thunderstorm watches were issued for parts of Ohio, West Virginia, Pennsylvania and New York, according to AccuWeather.

PHOTOS SHOW DESTRUCTION:Shredded homes, debris-filled streets, flipped cars

READ MORE:Bad tornado season in US is getting worse: Here’s what to know.

Seven dead in Tennessee’s McNairy County

Seven people died in southern Tennessee’s McNairy County, said David Leckner, the mayor of Adamsville, Tennessee. Most damage impacted homes and residential areas, and first responders went door to door Saturday to make sure everyone was accounted for, Leckner said.

In Lewis County, Tennessee, Melissa Keller ran to her bathroom to hide from the storm in the community where she’s lived with her family for nearly 50 years. Her house was still standing Saturday, but her sister’s was destroyed, she said.

“I’ve never seen nothing like this,” Keller said. 

‘Absolute chaos’: Illinois theater roof collapses during concert

A theater roof collapsed Friday evening in Belvidere, Illinois, about 70 miles northwest of Chicago, amid an intense storm, killing one person and injuring 28.

About 260 people were attending a heavy metal concert at the Apollo Theatre when the storm struck, Belvidere Fire Department Chief Shawn Schadle said.

“Chaos, absolute chaos,” said Belvidere Police Chief Shane Woody in describing the scene.

As security personnel urged concertgoers to take shelter in the basement, many scrambled to pull people from the rubble when parts of the roof gave in.