On this early Saturday morning, all the computer models are going crazy and the NWS has the Boston and Providence areas and south and east under a BLIZZARD WATCH. Everyone else is still under a Winter Storm Watch, with the exception of the south coast of CT, they are under a BLIZZARD WARNING at the current time. Now, why the big change. Simple, the storm is moving more north and to the west than predicted yesterday.
So, there you go. Starts tonight anytime after 7pm, becomes moderate to heavy by midnight, turns to near blizzard conditions by 4am and that will last until about 9am, then snow just turns moderate to heavy for a while and all tapers off by tomorrow evening sometime.