2:48AM
The Arctic air which inhabited Canada for much of the month of November headed back over the pole and into Siberia during December and has shown very little push back into North America. Though there are signs that this will finally begin to change, it will take place slowly, so systems between now and the holiday will have limited cold air to work with. This will limit, but not eliminate, the chance of getting some snow on the ground before Christmas. However, the system coming through southeastern New England today is not going to be one that brings the chance of any meaningful snowfall. A parent low pressure area is passing well northwest of the region while a secondary low moves right across southeastern New England. The most widespread rain will take place first thing in the morning, with just lots of clouds and a few showers otherwise. Tonight, cooler air will filter in, and some rain showers will be around at first, but eventually overnight and into Thursday morning, a disturbance will bring a chance of snow showers as air will become cold enough. Drier air will filter in later Thursday and especially Friday into Saturday as high pressure builds in. By Sunday, developing low pressure over the Southeast is expected to move off the Mid Atlantic Coast. At this time, it appears this system will not turn into a major storm, but it, combined with high pressure to the north, will bring cloudiness and a chance of some rain and snow to the region Sunday. Low pressure may be slow to move away so that some snow showers are possible Monday, before narrow high pressure brings dry weather for Tuesday.
SOUTHEASTERN NEW ENGLAND FORECAST…
TODAY: Cloudy with areas of fog into mid morning, including rain which will end southwest to northeast. Mostly cloudy to partly sunny with a chance of a few rain showers remainder of the day. Highs in the 40s. Wind light E to variable becoming W and increasing to 10-20 MPH in the afternoon.
TONIGHT: Mostly cloudy. Scattered rain showers before midnight. Chance of snow showers late at night. Lows in the 30s. Wind W to NW 10-20 MPH.
THURSDAY: Mostly cloudy to partly sunny. Scattered snow showers in the morning. Highs around 40. Wind NW 10-20 MPH and gusty.
FRIDAY: Mostly sunny. Low 20. High 35.
SATURDAY: Partly sunny. Low 19. High 41.
SUNDAY: Mostly cloudy. Chance of light snow/rain. Low 28. High 38.
MONDAY: Mostly cloudy. Chance of snow showers. Low 26. High 36.
TUESDAY: Partly sunny. Low 22. High 40.