Pretty reasonable NWS map honestly. Sure, maybe totals along 95 are a bit risky given the uncertainty around track, but most areas look pretty much in line with the consensus of guidance - including dc and Baltimore.
GFS certainly has the full support of its ensembles. This is the literal exact situation we wouldn’t trust its thermals over the euro or NAM nest (inside 48 hrs) though. 6-10+ for the immediate metros and 8-12+ for areas away from 95 seems like a reasonable call at this juncture. Could we see 12-18” up this way? Maybe. But I’m going to play it safe with 8-12 with upside
They all have sleet.. even the GFS (albeit the least) What gives BWI 10-13” is the massive thump of snow prior to the mixing. It’s also kuchera, which is probably dropping near 20:1 ratios at the peak.