The latest radar image from the NYC area (Upton, NY) radar shows moderate to heavy snow bands increasing and move onshore into Long Island and the remainder of the NYC metro area. The latest observation at the JFK International Airport confirms what the radar is showing, with heavy snow and one-quarter mile visibility:
As you also probably noted on the latest observation (times are Eastern, by the way), the wind had increased to 23 mph with gusts to 32 mph. Unfortunately, the wind will only grow stronger as the afternoon and evening wears on. Steady winds of 30-40 mph with gusts of 50-60 mph will be possible at times later this afternoon into this evening across much of the region. This will result in blizzard conditions across much of the region.
If you live or have travel plans anywhere along the Jersey to NYC to Boston corridor, it would be best to stay indoors and table those plans until at least Tuesday.