Before we get to the 18th/19th:
There is still a slight chance for a snowstorm next Saturday for the coastal northeast after the front comes through and a storm forms offshore. This is from the National Weather Service covering Long Island and the tri-state area: "... a large digging trough in the Northern Plains and Upper Midwest allows a large low pressure system to develop over southern Canada. This system drags a cold front through the area toward the weekend and then develops a low pressure system over the Western Atlantic Ocean into the weekend as vorticity rounds the base of the very deep trough. This will need to be watched as any shift in this very complex pattern can result in big changes" to the forecast.
Here are the projected storm locations for next Saturday at 1 PM from the Euro ensemble members. The 2nd image shows the projected snowfall for Long Island for the next 15 days as a running total from every Euro ensemble member.