With this very cold air mass coming in and pulling out rather fast the issue becomes what happens with the cold high pulls out. We are setting up a strong warm advection situation where we are going from bitter cold arctic air to very warm tropical air in a very short period of time. This will set up a warm front our south like last Sunday. However unlike last Sunday the warm front sets up much further south with cold air more important for a longer period of time. This creates the possibility of a solid band of accumulating snow before it goes to ice and then to rain. We will see temperatures essentially rise from the low teens and single digits Friday morning to the 50s by Sunday morning. Something has to give with such a temperature change and it could be with a front end accumulating snow.
I have situations in the past like this that have produced 4 to 8 inches of snow for some areas. Sometimes even the coast could get a significant snowfall but that is going to depend on how the high moves out and if cold air can get pinched in along the coast for a little while longer. We have no blocking which means that cold air is going to retreat. It is a question of how fast. This will also be a situation where the change over comes in from the southeast and moves northwestward...READ MORE AT http://www.meteorologistjoecioffi.com/index.php/2016/12/13/snow-ice-friday-night-saturday-early-thoughts/