The posts in this forum are NOT official forecast and should not be used as such. They are just the opinion of the poster and may or may not be backed by sound meteorological data. They are NOT endorsed by any professional institution or 
Areas obviously are subject to change, big problem area is Eastern PA, is it warm enough for rain at first ??? Even if not, does storm come together too late for this region as it did with the January Blizzard for NE, and finally area is in good location for a potential dry slot...
Big Cities could see accumulating snow after a rainy start (Boston obviously the exception), but the threat for snow greater than 6" is low...
Areas in the reddish-purple could see accumulations rivaling that of the Januray Blizzard, as storm could bomb out in a mega way...
Breakdown of the Cities...
Washington- Forget about it it's just rain
Baltimore- See Washington
Philadelphia- Rain at start, accumulating snow possible by stroms end
New York- At threshold for decent snow after rainy start
Hartford- Major snowstorm possible
Boston- Crippling storm is possible
