For the third weekend in a row, a sizable coastal storm will bring snow to much of Southern New England. Unlike the past couple of storms, this weekend’s system will track closer to the coastline with less cold air overhead. As a result we’ll see more mixing in spots.
Precipitation will break out first late Saturday afternoon and evening. The storm will begin as snow to the north and west of Boston, with a mixture of rain and snow for areas closer to the city and in Southeastern Massachusetts. That mixture comes courtesy of a gusty east wind transporting in relatively milder ocean air. The gusty onshore winds will also result in some minor coastal flooding.
As the storm passes by winds will remain gusty, but will shift to more of a northerly direction. That will allow all areas to turn to snow by Sunday morning. However, the heaviest snow looks to end by midday.
With that in mind, the heaviest snow with this storm will likely fall north and west of Boston, outside of 128. In these areas 8″+ are likely.
Less snow will fall in the city and in Southeastern Massachusetts, but there will be some accumulation after the transition to snow.
A specific snowfall total forecast will be issued by Thursday night, so check back for more complete details.