Widespread Winter Storm Likely for South/Deep South/Southeast/Tenn. Valley

All models agree on the fact there's going to be very cold air in place ahead of the Sunday/Monday storm, the only question is timing. Looking back at my maps from the storms with a similar setup, the January 13 1982 storm comes to mind with this one.  By Sunday morning , a strong upper low is in Texas with a surface low being spawned in the offshore waters of Houston. Snow will break out quickly across most of Arkansas, northern Mississippi and western Tennessee. By Sunday afternoon, the snow will be knocking on the door for Atlanta and the western Carolinas by nightfall. 
The track of the low is going to be crucial for who remains snow and who goes over to sleet and freezing rain, but at this point it looks like all snow for all of Tennessee, and North Carolina, with mostly snow in the Upstate of SC, northern GA (Atlanta may go over to ice), northern GA, northern Alabama and northern Mississippi.

The amounts of moisture usually with a track like this should be very substantial, and honestly this is how the Shelby area has got its big snows in the past.
Following the storm, once again, very cold arctic air pours in.  I'll begin working on maps this afternoon.  This is just a heads up that a major snowstorm (and icestorm for some) is on the way to much of the Carolinas, Tennessee, and the northern half of the Gulf states...One of the biggest, most widespread snow and icestorms since the 1980's.