Thursday's model runs will be the make or break for guidance. Most of the players will be within the upper air network in North America, and I'd be my bottom dollar that NOAA will be running extra planes for data sampling.
From what I can see, the real risk of ice/sleet is from EZF south to the Carolinas. I don't really see any truly suppressed members that have NOVA/DC/Baltimore smoking cirrus while the Carolinas win. It looks like the "worst case" is a moderate 4" - 6" event.
Cold ai pressing in better at the mid levels. It's a great trend. All of the inland primary lows that tried to run into SW PA or northern WV are gone. Clear signal for a better transfer to the/a coastal.
Also,
12z Euro AI is a CLASSIC Mid Atlantic snowstorm. Primary low drives into Tennessee, then hands of everything to the coastal quickly and cleanly. 8" - 12" cold powder, weekend snow.
Yea 12z Thursday is my go/no go for this event. I'd much rather deal with suppression than worrying about something cutting. With such a fresh, strong push of cold air coming I don't think we have to worry about this cutting too much this time.