Heavy snow is expected to blanket large portions of the Eastern U.S. while much of the country will endure dangerously cold temperatures in the coming days

The widespread winter storm will most likely bring steady snow to the area by early afternoon. The snow will continue until just before 9 p.m. and then taper off through midnight, said meteorologist Joe DeSilva of the weather service’s office in Mount Holly, New Jersey. A winter storm warning is in effect until 1 a.m. Monday.

The National Weather Service issued a winter storm warning at 9:21 a.m. on Sunday in effect until Monday at 9 a.m. for Westmoreland Ridges and Fayette Ridges.