While Christmas may ultimately be brown in quite a few spots around the region, there is a chance that some folks could see some snow on Christmas Eve or Christmas Day. The best chances of this will be in the Poconos, the higher elevations up to our north, but computer modeling seems to suggest a chance for some of the northern fringes of our region to see accumulations from the third wave of what could be four waves of low pressure to track along over the next week through the Mid Atlantic.
Wave #1 is for Wednesday and will be rain...and mild. We have that one pretty well established. However, it could be cold enough at the surface in the Poconos for freezing rain at the onset late Tuesday night and early Wednesday morning. Odds are pretty low that this occurs.
The second wave is for Thursday night into Friday. Again, mild enough to support mainly rain except perhaps the highest hills in the Poconos, where snow or sleet could fall. This is a relatively modest system in all likelihood -- it may scoot through with just a couple of tenths of an inch of rain, perhaps a half inch at most, but the odds are that this system is relatively weak as the pattern is forcing these lows to move quickly along and does not give them time to organize into stronger systems.