Hopefully wrong but, does happen. If the Low intensifies enough adequate moisture should still make it North. That along with the GL phasing Lp carrying moisture already within should still support at least a probable 3-6" Snowfall in the Great Valley.
Without Storms along Gulf robbing moisture transport we could be looking at a Valley wide 6-10" with a lolipop of a foot imo. .
The Blizzard in '93, '96 etc had Storms all along the Gulf before it's adjacent front passed those area's and Heavy Snow stiill streamed well ahead of them. Of course, their strength and dynamics were through the roof but, strong enough pull,lift and internal moisture can still work with a decent phasing System as well.