A hectic day before Thanksgiving is in store for many in the Mid-Atlantic and Northeast. Toughest challenges are 1) finding that crucial rain/snow line, and 2) honing in on QPF totals, especially when considering the deformation band that’s expected. It will be a heavy, wet snow that will at least initially struggle to accumulate on the roads. Expecting it to start as rain around the greater D.C. region, changing over to snow in the mid-to-late morning hours.
Best confidence is for places 20-30 miles north+west of I-95 and points west. Western edges could shift a decent amount still from the MD/WV Panhandles into PA, depending on the storm track. There’s high bust potential in both directions along the I-95 corridor, where heavy snow rates will battle against marginal surface temperatures of 33-35 degrees.