The concerns of the snow shield not advancing very far north has come to fruition and the snow has barely made very far north of interstate 84. With the storm tracking so far off shore and the northern fringes of the snow shield fighting extremely dry arctic air pouring in from the North, it was suspected there would be a sharp cut off in the snowfall and this evening it is clear where it has set up. Snowfall has surpassed six inches across parts of Westchester and Rockland Counties while not even a dusting has occurred in parts of Orange and Putnam. Below is a look at the current radar, below the black dashed line is where the best snowfall has occurred, below the red line is where snow has been very isolated and light with only a few locations reporting measurable snowfall, north of there the snow has been almost non existent. The blue arrow represents the cold and very dry air that has been pouring south in the wake of last nights passage of the arctic front. This dry air has acted as a force field against the snow shields northern progress and only continue to erode away the fringes of the snow.
Below is the updated snowfall map to reflect the changes to the forecast, the further south you head from the black dashed line, the more significant the snowfall accumulations, with Southern Westchester and Rockland Counties seeing anywhere from 5-10 inches, with some locations surpassing a foot, less across the Northern half of the counties.Some areas just north of this line will also see some accumulating snowfall, this will likely be contained to extreme southeastern Dutchess County.