This upcoming system is expected to usher in even colder conditions, with some areas bracing for single-digit lows and temperatures in the low teens — marking the coldest weather of the winter so far.
The NWS has issued warnings this weekend after a powerful polar vortex plunged temperatures nationwide during the week.
A winter storm is expected to blast the southern United States with heavy snow, ice and rain Thursday and Friday.
The National Weather Service issued an updated winter weather advisory at 3:38 a.m. EST on Thursday in effect until 9 a.m.