The latest storm is knocking out power in Mississippi, Kentucky and elsewhere.
The winter storm that swept through Texas with freezing temperatures and rain has moved to the northeast, causing power outages and slick driving conditions from Mississippi to New York.
In Mississippi, images on social media showed trees and buildings coated in a layer of ice. Dangerous cold is expected in much of the state Thursday night and into Friday, causing black ice and slippery roads.
Nearly 200,000 Mississippi customers were without power as of Thursday morning, according to PowerOutage.us, and tens of thousands more were without electricity in Louisiana, Alabama, Kentucky, West Virginia and Virginia.
The Carolinas are also bracing for power outages from wind and fallen trees. Freezing rain had begun to fall Thursday morning and should continue all day, with a risk of flash flooding in some areas, according to the National Weather Service.
The utility company Duke Energy predicted a million customers in the Carolinas could lose power for several days from the storm.
“Ice buildup causing trees and branches to fall on power lines is usually the culprit for power outages during an ice storm,” the company said in a statement. “Ice buildup of a quarter-inch or more is often the threshold amount that causes trees and branches to fall.”
Gov. Roy Cooper issued a state of emergency Wednesday and encouraged people to plan ahead.
“People need to be ready to stay home and be prepared to lose power for a while, especially in the northern, western and Piedmont counties,” he said in a statement.
The National Weather Service also warned of possible significant ice accumulation across the southern mid-Atlantic.
Farther north, the icy rain has turned to snow. Winter storm warnings and advisories are in place for parts of New York, New Jersey and Connecticut through Friday night, and heavy snow was already falling in New York City Thursday morning. The city is expected to see several inches of snow.
Massachusetts is under a winter weather advisory, with three to seven inches of snow expected to accumulate through Friday evening.