In New York, residents will wake up to subzero wind chills on Saturday, the final day to prepare for the storm, and once the system clears out Monday, the Arctic grip will not relent all week, meaning all that snow and ice will not melt away anytime soon, a rare phenomenon in recent years.
After initially fighting the dry, cold air mass, the snowfall will begin in earnest Sunday morning, likely around dawn, in New York City and the Tri-State area, with rapid accumulations from snowfall rates that could reach 1 to 2 inches per hour accompanied by whiteout conditions. Well north and west of New York City, the snow will pile up unimpeded until early morning Monday, when it will finally taper, leaving 12 to 18 inches.
In and around New York City, including parts of New Jersey and Long Island, expect 8 to 12 inches, and mixing later in the day could hold down totals. Even so, toward the of the event, it could go back to snow.