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.

As snow, freezing rain and sleet make their way through North Texas this Thursday and early Friday during the winter storm, most schools and offices are closing their doors, but many other services will remain open.

A mix of snow, sleet and freezing precipitation is leading to sloppy road conditions in the Dallas-Fort Worth metroplex and beyond.