I might drive in tomorrow morning, just to see the carnage.
I'm feeling fairly confident that we see 1" or so on elevated surfaces in my area of east-central Fairfax County, but not so confident of accumulation on roads and sidewalks. Totally fine though. Just getting on the board right now will work for me, unless I see deck pics of 4" of marshmallow, in which case I'll be pissed.