Dec 13: Snow Tonight, Sunday Storm Potential

As posted this evening, an unexpected band of moderate snow developed near NYC and quickly expanded and intensified to cover most of the area with a steady light to moderate snow. While most places are currently with a dusting, some places may end up with as much as 1/4 to 1/2 inch of snow if the snow is heavy enough. The heaviest snow totals are possible in Long Island and southern Connecticut, where a large snow band from the Atlantic Ocean is moving inland.

Meanwhile, much colder air is currently moving into the region, which will produce very cold temperatures for tomorrow, with high temperatures struggling into the 20s and wind chills in the single digits tomorrow morning. The cold will moderate afterwards with a snowstorm passing to the south of NYC on Thursday, but by the weekend another storm may be possible for the area.


Tomorrow's Outlook:

Tomorrow will be a mainly cloudy day with a breezy northwest wind. High temperatures will be in the lower 20s inland, lower to upper 20s in the immediate NYC area, and in the upper 20s for Long Island/S CT. Isolated snow showers are expected, however they will not be as widespread or as heavy as those of tonight.

Due to the windy conditions combined with the cold temperatures, very cold wind chills are expected in the area tomorrow, as low as the single digits in the immediate NYC area, and sub-zero wind chills are possible for the northwestern parts of the area.


Wednesday - Friday: Moderating Cold, Snowstorm South Of NYC

On Wednesday, the cold will moderate with less cloud cover expected, however highs will still be chilly, in the mid to upper 20s inland and in the upper 20s to lower 30s for the rest of the area. A breezy WNW wind is expected, and wind chills in the morning will once again reach the single digits across parts of, if not most of the area.

For Thursday, a weak low pressure will bring a light accumulating snow event south of the area, mainly focusing on Virginia, however partly to occasionally mostly cloudy skies are still expected, with slightly warmer temperatures.

Friday will bring warmer temperatures, with highs potentially reaching the 40 degree mark again in NYC, with Saturday bringing bringing similar conditions, however a potentially interesting set up is on the way for Sunday.


Sunday - Monday: Potential Coastal Storm?

Yesterday, I mentioned the potential of a storm affecting the region on Sunday and Monday. The models have picked up on this possibility, with the GFS model showing near or over a foot of snow for the area 3 out of 4 of its runs today. The ECMWF and GGEM models are further east, but there is still time for trending. Due to the set up, this storm is unlikely to track inland, and while there is still uncertainty and time left for things to change, at this time I'd give a storm track range from a track right along the coast to a storm track well offshore. If the solution in between verifies, the area may see snow, with potentially significant amounts.

Stay tuned for more details on this potential storm and how it may affect the area.