Just a possibility that needs to be put on a board of possibilities; a few analogs would be good to look into, at this point. But usually with a huge high-pressure with blistering cold and a subtropical jet over the south east. Leads to overlapping and colder air at the surface with warmer air above.
Generally at this point a blistering cold high pressure needs to cautious with many cases with the dense cold air pushing in quicker or more profoundly. Kinda has to do with the role of boundaries and atmosphere.
The 1998 Ice Storm is the one I have bad memories from. Slipped on ice and fractured my wrist on my writing hand. Had multiple trees fall on my sister's house next door and my dad's house didn't have power for almost 3 weeks. Luckily he had gas heaters installed on all of the walls of his house back then.
It's highly unlikely that in the next week or week and half or so that somebody in the deep south doesn't get some form of wintry precip, seems unlikely with the possibility of atleast two short waves making there way through possibly through the Gulf as a closed low or just as a broad shortwave with increased precip. We ACTUALLY have the cold air for a little while at the front door to make it happen this go round; we are right around peak timing for a winter precip with late January/ early February being the most likely time for snow in the deep south historically.