Snow is already falling in parts of Arkansas and Tennessee this early afternoon, and the snow should eventually shift further south throughout the evening into Sunday as precipitation increases across the Southeast. This increase in precipitation chances across the region is in response to a shortwave moving out of Texas and one moving out of the Plains. These two features will phase together and cause an enhanced area of lift across the region.
With surface temperatures in the 30s and 40s, surface dewpoints in the teens and 20s, and cold air aloft, it is likely that far northern parts of Alabama, Georgia, and Upsate South Carolina will see snow mix in with the rain at some point late today or Sunday morning. Confidence is relatively high with this scenario. When it comes to accumulations, that’s when the confidence level drops. Right now, it doesn’t appear much accumulations will occur outside of Tennessee, the highest terrain of Georgia, and the mountainous regions of North Carolina. It should be noted, the dynamics with this system are pretty strong, so there is the potential for a small enhanced zone that sets up somewhere in the region. This could cause a quick inch or two of accumulations if it evolves, but again, this type of feature is too hard to forecast where it may setup. At this point, the best chance of accumulations will be on the roof of your car/homes and possibly on bridges/overpasses.
This pink region outlines which areas have the best chance of seeing snow mix in with the rain. This is not an accumulation map.