NYC residents who leave early for work will wake up to snow falling outside there window. There may be a coating to as much as 1 inch of snow accumulating in central park by morning. Essentially all the colder surfaces such as cars, tree limbs and grassy surfaces could be coated in white when heading out for work this morning.
The morning commute into NYC from the north will be slick with snow having already accumulated, so drive carefully. If driving in from the south the commute should be less troublesome, but drive with caution none the less. The expected early morning snow will be a result of overrunning (warm moist air over top cool dry air) compliments of a storm system in the upper mid west with an associated warm front extending eastward toward the mid-atlantic coast. Come late morning the snow should begin to transition to a rain/snow mix as the storm begins jogging east and the warm front to our south lifts closer to the area.
By the afternoon the winds, out ahead of the nearby warm front, will shift from a northeasterly direction to a more easterly direction which should moisten the boundary layer (air near the surface) enough to transition the precipitation to a cold rain. In the afternoon, if you will be heading out for lunch or need to get around, it will be a good idea to have the umbrella handy. The rain should be falling with varied intensity, so keep that in mind if you think the rain has called it quits when you look out the window and it’s simply drizzling.
For the evening commute heading out of NYC, it should still be raining so the initial drive home doesn’t look to be all that bad. With that said, it will be slick if your commuting north of the city to places like Sussex, NJ; White Plains, NY and Danbury, CT as it will likely be snowing in those areas for the evening commute with light to moderate snow accumulation already on the ground at that time.
As the storm makes it’s way off the NJ/Delaware coast overnight Wednesday there should be enough cold air funneling back in on northeasterly winds to transition the precipitation to a snow/sleet mix. Pre-dawn hours on Thursday, the precipitation should go over to all snow. The exact timing of this transition– a function of exact positioning, speed and intensity of low pressure– will determine how much snow will accumulate in NYC by Thursday morning. It appears NYC (the 5 boroughs) is in line for 1-4 inches of snow with 4 inches possible in the Bronx, and about 1 inch in Staten Island.
The storm will begin to wind down late Thursday morning. Any lingering precipitation should be in the form of light snow showers, but shouldn’t amount to any additional accumulation. The Thursday morning commute into NYC will likely be slick no matter where your traveling from so it would probably be best to use public transportation.