Managed to make it out WAS-NYP tonight. They're running on a single track and the snow is interfering with the signals, so expect some potential long delays at station stops en route (we boarded at 6:10p, sat in WAS until 8pm before departing, stopped at the first station for about 15 min, then at BWI for about an hour - looking at nearly 7 hrs travel time right now.)
Looking at all of the NE Corridor cancellations on Amtrak.com, it would have been much easier if they'd just stated which trains would be running rather than which ones were cancelled!