There are two problems for getting snow Friday night:
1) The bulk of the moisture is passing to the south
2) Temperatures, while cooling sufficiently at upper levels for a brief period of snow, will be well above freezing at the surface (35+).
Maybe, over the northern neck of Virginia and southern Maryland, where precipition is a bit steadier, the rain mixes with snow before ending with no accumulation. That’s the most I expect.
I’m trying hard to find snow, and just don’t see much promise - whether it’s the short term or the long term.