I would take the globals and smooth out the precip maps on them. They aren't going to be too good at nailing anything too specific in that regard. Snow max could end up anywhere from RIC to Mason/Dixon line.
Epic sick textbook snow pattern should be in place by 1 Jan... oops I mean 10 Jan... uh make that 15 Jan... never mind, try 18 Jan... sorry, I got it this time, 22 Jan. That's the window I am sure of it!