Forecast discussion: After a wet weekend over eastern Massachusetts, we continued to see precipitation over the state on Monday. However, thanks to colder air coming down from Canada, some rainfall mixed with sleet and snow flurries. It also helped to reduce visibility at times for drivers. As of writing this article, Boston is now seeing dry weather, with a few showers still over the outer Cape.
As the precipitation shield leaves Southern New England, we are still dealing with some minor flooding issues. Some rivers and streams have gone above their flood stage, although minor flooding is being reported. A Coastal Flood Advisory is in effect for the entire eastern coastline of Massachusetts, along with Nantucket, from 11 p.m. until 3 a.m. Tuesday morning. The alert has been continued, due to the chances of some roads and basements becoming flooded, especially during high tide. By Tuesday morning, all streams and rivers will recede below flood stage.
High pressure ridging will remain over New England for the next few days. We will see mostly sunny skies for Tuesday, with some moisture moving into our atmosphere Tuesday night. A weak frontal boundary will come through the area on Wednesday, but the computer models suggest there will be no precipitation. A high pressure system over central Canada will keep a strong low pressure system now over southern Minnesota from entering New England until Friday evening.
We will begin to see more showers from this system before midnight early Saturday morning. By this time, the ridge will begin to weaken, as the low pressure system pushes through New England. Unlike the previous weekend, this system will be offshore by early Saturday night. We will return to sunny skies for Sunday. We will continue to keep dry weather entering next Monday. Temperatures will remain slightly below to seasonable conditions, starting on Wednesday.
72 hour forecast:
Tonight: Partly to mostly cloudy skies during the overnight with a low of 30. Some black ice is possible for the morning commute.
Tuesday: Mostly sunny with a high of 47. Winds will come from the north-northeast at 11-15 mph.
Tuesday night: Partly to mostly cloudy with a low of 34. Winds will come from the north at 4-7 mph.
Wednesday: Partly sunny with a high of 51.
Wednesday night: Mostly cloudy with a low of 37.
Thursday: Partly sunny with a high of 53.
Thursday night: Mostly cloudy with a low of 36.
Friday: Partly sunny with showers arriving before midnight. Highs 49-52, lows 37-40.
Saturday: Light to moderate rain ending by 7 p.m. Highs 50-53, lows 36-39.
Sunday: Mostly sunny. Highs 49-52, lows 34-37.
Monday: Mostly sunny. Highs 52-55, lows 36-39.