The cold will continue to dig in this week and next week before a late week warm up at the end of next week through the weekend of December 21st. That warm-up will give way to bitter cold from the plains early Christmas week. I believe we have about an 80% chance of a white Christmas.
This weekend, temperatures will rise a little on Saturday to bring us closer to freezing but I do not believe, at this point, that the temperatures will go above freezing. Therefore, what ever precipitation we get on Saturday is likely to fall as snow. Right now, I am putting totals around 3-6″. This will be similar to our last couple of set-ups where the freezing line should be just to the south of Pittsburgh.