Op runs at 4 days plus? Always going to be variable. As @dallen7908s posts show, even ensembles have only bought in for about 48 hours for the cities. IMO if the Thursday 0z runs show mostly/all rain for the metro corridor, then it’s pretty unlikely to bounce back to mostly snow. But this is a pretty standard mid-Atlantic winter storm…mixing issues, sharp gradient in snow amounts, elevation important, subtle factors could make a big sensible weather impact.