Forecast discussion: The strong storm has moved offshore, and Boston was left with about 18 inches of snow. The big winner in eastern Massachusetts was Boxford, which received 23.8 inches. Now, after the snow, we will be feeling some bone chilling low temperatures this evening. We will be warming up to almost April like temperatures by Monday, before another blast of Arctic returns.
Clear skies are over the state, and this will allow for temperatures to drop rapidly. By the early morning, temperatures will fall to about 5 below zero. Any winds we do experience will make temperatures feel like 10 to 15 below zero. For this reason, the National Weather Service has issued a Wind Chill Advisory for most of eastern Massachusetts until 9 a.m. Saturday. The advisory extends to Plymouth, but does not include the Cape and Islands.
It will be much warmer for Saturday night, as our winds shift to the southwest allowing for some milder air to move over the state. Also, we will be seeing increasing clouds, which is a good insulator of keeping the heat from escaping into the atmosphere. It will feel almost balmy Saturday night, as lows only fall into the lower 20’s.
By Sunday, a cold front over the Ohio River Valley will slowly move eastward. Also, some upper level energy over the coastline of North Carolina will help bring moisture up towards the north. The two systems will combine and help bring rain showers by the mid-afternoon. However, we will begin to see some melting of this snow, as temperatures reach the lower 40’s. We will see patchy to dense fog Sunday night, as warmer air moves over the cold, snow covered ground. Also, the precipitation will remain as showers, as temperatures remain above freezing.
By Monday, we will continue to see rain showers, but we will also be seeing a temperature change. The cold front will begin to move through the area, and our temperatures will begin to plummet. The precipitation may change over to snow showers, before all precipitation ends early Tuesday morning. Overnight lows will plummet into the lower teens.
The Arctic blast will remain over the region on Tuesday, as temperatures struggle to reach 20 degrees for a high temperature. Temperatures will rebound by the middle of the week, and winds will once again switch to the south. However, with so much cold air in the atmosphere, we may see some snow showers on Thursday, as a weak frontal boundary moves towards the area from the Mid-Atlantic. We may see a passing snow or rain shower until Friday afternoon, when the precipitation moves offshore.
72 hour forecast:
Tonight: Clear skies and bone chilling cold with the low temperature of -6. Any winds will produce wind child of 10 to 15 below zero.
Saturday: Mostly sunny and warmer with a high of 27. Winds will come from the southwest at 7-10 mph.
Saturday night: Partly cloudy and much warmer with a low of 24. Winds will come from the southwest at 6-9 mph.
Sunday: Increasing clouds through the morning with rain showers by the mid-afternoon. We will see a high of 42.
Sunday night: Light to moderate rain and patchy fog with a low of 39.
Monday: Rain/showers ending by the early evening. With the cold front expected to pass through the state by the evening commute, changing to snow showers. We will see a high of 48 before dropping in the afternoon.
Monday night: Mostly cloudy with scattered snow showers ending around 2 a.m. It will be much colder with a low of 11.
Tuesday: Partly sunny and much colder. Highs 14-17, lows 8-11.
Wednesday: Partly sunny with possible ocean effect snow showers along the Cape and Islands during the early morning. Highs 24-27, lows 16-19.
Thursday: Partly sunny until the early afternoon, with possible snow showers by the evening. Highs 32-35, lows 23-26.
Friday: Overcast with a passing snow/rain shower until the afternoon. Highs 39-42, lows 21-24.