3:28AM
SUMMARY…
The boundary line between Spring warmth and Spring chill is located just south of New England and will wave around there through Thursday. A disturbance will move along this boundary from west to east Wednesday night and early Thursday while high pressure tries to push down from the north as well, supplying cold air. In mid Winter, this would be a set-up for a light to moderate snow event. At this time of year, it will be an event of rain, mix, and some snow, depending on where you are. It’s a little iffy getting these zones just right, but it looks like most of the precipitation will be Wednesday night and in the form of snow/sleet in southern NH, sleet and rain in northern MA with some snow possible, and mostly rain in southern MA and RI with some sleet possible. Another disturbance and a northward push of the boundary later Thursday through early Friday will end up as rain with warmer air moving in aloft. Finally on Friday, southeastern New England should end up on the warmer side of the boundary, but still with lots of clouds and a rain shower threat as a cold front approaches from the west. This front will push through the region early Saturday and we will see a transition to slightly cooler, drier air during Saturday. High pressure builds in Sunday and moves off to the east Monday with fair and generally mild weather, but watch for the ocean’s influence keeping coastal areas somewhat cooler. High pressure will try to hang on Tuesday but we’ll also have to watch another disturbance advancing in from the west.
SOUTHEASTERN NEW ENGLAND FORECAST…
WEDNESDAY: Cloudy. Spotty light rain/sleet/snow afternoon. Highs 40-45 north, 45-50 south. Wind E to NE 5-15 MPH.
WEDNESDAY NIGHT: Overcast. Mix to snow/sleet southern NH with 1/2 to 2 inches accumulation, rain to sleet and some snow northern MA with coatings likely, rain mixed with sleet southern MA/RI with no accumulation expected. Lows 32-40, coldest to the north of Boston. Wind NE 10-20 MPH and gusty.
THURSDAY: Cloudy. Spotty light mix north and rain south. Highs 38-45. Wind NE 5-15 MPH and gusty.
THURSDAY NIGHT: Cloudy. Rain likely. Temperatures rising slowly through the 40s. Wind SE 5-15 MPH.
FRIDAY: Mostly cloudy. Chance of light rain/drizzle mainly northern MA and southern NH early. Chance of rain showers in the afternoon from northwest to southeast. Highs in the 50s to near 60. Wind S to SW 10-20 MPH and gusty.
SATURDAY: Mostly cloudy to partly sunny. Scattered rain showers early. Low 45. High 55.
SUNDAY: Mostly sunny. Low 40. High 60, cooler some coastal areas.
MONDAY: Mostly sunny. Low 45. High 55 coastal areas to 65 inland.
TUESDAY: Partly cloudy. Low 45. High 60, cooler some coastal areas.