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.

Salad And Go: will open late on Thursday. Waffle House will operate at normal hours. Medical emergencies won't wait until the winter storm passes, so North Texas hospitals are preparing to operate in the inclement weather. Click here for a list of open hospitals.

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