The Tennessee Valley could see some of the heaviest snowfall, with 6 inches expected on Friday. A wide swath of the country is under winter weather warnings and advisories and will see impacts including "widespread closures, treacherous travel, scattered power outages, and downed branches," the weather service said.

Storm Cora will bring a round of snow and ice to many southern cities, including Dallas, Atlanta, Memphis and Raleigh. Several inches of snow and some ice will fall from Texas to Georgia and the Carolinas through Saturday.