Forecast discussion: At the moment, high pressure ridging is over all of New England. The ridging is helping to keep the weather calm over Boston. But, northeast winds off the ocean are helping to keep temperatures cold, as well as create more mid-level clouds. By tomorrow, some snow showers will be over eastern Massachusetts.
The snow showers will be due to a weak cold front coming from Canada. It will move south into Northern New England this evening. This front will push down into northern Massachusetts by tomorrow afternoon. The front is forecast to not move through Boston, but rather slowly dissipate. This is due to a high pressure system over eastern Canada digging down into New England. The snow showers will be scattered, and I am only expecting up to half an inch for the highest snowfall totals.
As we move through the rest of the week, the high will protect the region, keeping a strong developing area of low pressure away from the east coast. So, the low will move out to sea. This will allow for a weak cold front to pass over the area on Saturday, and we could see some snow showers, especially during the morning to mid-afternoon hours. Another weak disturbance passes on Sunday, providing us with possible snow showers from Sunday afternoon into early Monday morning.
As we head into the weekend, you will notice that temperatures will also begin to rise. Thanks to winds shifting to the south, warmer air will begin to filter back into Southern New England. High temperatures will be reaching the lower 40’s for Saturday, which is what we should be seeing in early March. We will see dry weather next Monday, with a weak cold front bringing the chance for some scattered snow showers next Tuesday.
72 hour forecast:
Tonight: Mostly cloudy with some flurries and a low of 21.
Wednesday: Partly sunny with possible snow showers starting by the afternoon. We will see a high of 29. Winds will come from the north-northeast at 8-11 mph.
Wednesday night: Mostly cloudy with scattered snow showers ending around 1 a.m. and a low of 18. Winds will come from the north-northeast at 9-12 mph. A coating to a half inch is expected in snowfall.
Thursday: Partly sunny skies and a high of 30.
Thursday night: Partly cloudy with a low of 21.
Friday: Mostly sunny and milder with a high of 38.
Friday night: Mostly cloudy with a low of 28.
Saturday: Partly sunny with possible snow showers during the morning, but ending by the mid-afternoon. Highs 41-44, lows 27-30.
Sunday: Mostly cloudy with possible snow showers by mid-afternoon, ending by midnight. Highs 37-40, lows 21-24.
Monday: Mostly sunny. Highs 38-41, lows 26-29.
Tuesday: Cloudy with possible snow showers starting at midnight, but ending around 9 a.m. Snow showers return during the evening. Highs 35-38, lows 27-30.