Here’s the model data… now you decide. How much snow are you going to get in your neighborhood? “But Tim, they all say something different”. Welcome to the world of weather forecasting. Add angry commuters stuck in gridlock (as your viewers) on ice packed roadways (as Boston makes fun of you for being snow wimps) … and it gets a little intimidating doesn’t it.
A fellow weather enthusiast told me today that the American forecast models are initially showing more sleet falling (overnight and Thursday early morning) before the snow takes over and that may be why the snowfall totals are lower than the bullish European, UK, and Canadian models. Of course, temperatures could fall faster than indicated in the northern & western suburbs maximizing snowfall there with lower totals across southern Maryland. I expect some banding to develop on the radar tomorrow morning with snowfall rates occasionally reaching 2″ per hour!
DC Storms 
I am still on the bearish side of the models, but would love to be wrong.
A period of sleet would be absolutely no bargin for commuters. It would provide a foundation for snow to immediately stick on road surfaces, then as temperatures drop, the whole mess would freeze solid. Should be interesting one way or another.