As a cold front moves east of the area overnight we can expect occasional snow showers into Saturday morning. Most of us will see a coating to an inch by morning with a few spot two inch totals in some locations. The passage of the cold front puts an end to the mild temperatures of the past few days as we will trend to much cooler weather as the weekend progresses. Expect tonight’s low temperatures 25 to 30 degrees.
The front stalls offshore Saturday and low pressure will also be developing south of New England along the frontal boundary. An intense ocean storm will develop, but the question remains when and where. Most of the computer models have the low well southeast of Nantucket Island, with a few models suggesting a closer pass toward the coast. Either way, we should see light snow redevelop later in the day on Saturday or early Saturday night. It looks to be a light snow event locally, with eastern Massachusetts and especially southeast portions of the state seeing the potential for more snow. Periods of light snow are likely Saturday night, with an inch or two of accumulation by morning. It will be much cooler tomorrow as the mercury only recovers to 31 to 36 degrees, with nighttime lows falling to around 15 degrees. Winds will come around to the north at 10 to 15 mph. If the ocean storm comes closer than expected the snowfall accumulation increases. Further out to sea and we get very little if any snow at all. It is a close call either way.
What is for certain is once the storm pulls away toward Nova Scotia later Sunday and Monday we get quite cold and very windy here Sunday through Monday. Blustery conditions will make it feel quite uncomfortable outside as winds are forecast to gust upwards of 40 or 45 mph from the northwest. Skies should improve during Sunday with generally partly cloudy skies Sunday night and Monday. A snow flurry cannot be ruled out Sunday. Temperatures on Sunday only climb to near 25 degrees, dipping to around 10 Sunday night and rebounding back to 25 to 30 on Monday. Daytime wind chills will feel in the teens or single digits, given the gusty conditions.
Monday night will continue cold, however those gusty winds should be tapering off. Lows 10 to 15 degrees under fair skies.
Another storm system approaches from the Great Lakes Tuesday. Temperatures moderate a bit as highs jump back to near 40. We could see a spell of light rain showers Tuesday, possibly mixed with snow, with snow showers at night as temperatures drop into the 25 to 30 degree range.
More inclement weather could be in the works for the late Thursday and Friday timeframe.