2:34AM
High pressure holds on for one more day today with fair and mild weather. A strong cold front will move through on Saturday, but rather slowly, as a storm system organizes off the Mid Atlantic Coast. This appears to be a complex development with some questions on the details yet to be answered, but it appears that the bulk of the heaviest precipitation will remain over water south and east of New England as the eventual storm center passes well southeast of Cape Cod during Saturday and Saturday night. The slowness of the cold front will allow enough mild air for precipitation to start as rain from Boston south on Saturday morning to around noon – limiting accumulation of snow there as it will take longer for the cold air to arrive. To the north and west of Boston, where cold air will be in place sooner, lighter precipitation is expected, therefore snow totals will be held down there as well. What this means is that overall accumulations should be mostly minor and low impact, falling during the daylight hours. A few heavier amounts favoring higher elevations southwest of Boston may occur with a few enhanced bands of snow after the cold air arrives. Once the storm is beyond the region, a few snow showers may linger Saturday evening as much colder air finally filters in, setting the Boston area up for a fair, windy, and very cold day Sunday. A frigid start Monday will be followed by a temperature recovery in the afternoon. A return to above normal temperatures is expected by Tuesday, which will also carry the next chance of precipitation – a system that looks minor at this point.
Boston Area Forecast…
TODAY: Clouds at dawn & sunset but sun dominating for much of the day. High 46-51. Wind W 5-10 MPH.
FRIDAY NIGHT: Clouding over. Low 32-37. Wind SW 5-15 MPH.
SATURDAY: Cloudy. Rain develops Boston southeastward and light mix to snow northwest, then snow all areas in the afternoon, but mostly on the light side, except a few periods of moderate snow possible over higher elevations southwest of Boston. Snow accumulation a general inch or 2, locally 3 or 4 inches possible in the higher elevations southwest of Boston. Wind W under 10 MPH shifting to N and increasing to 10-20 MPH.
SATURDAY NIGHT: Mostly cloudy. Chance of snow showers early. Low 10-15. Wind NW 10-15 MPH and gusty.
SUNDAY: Mostly sunny. High 25-30. Wind NW 10-20 MPH with higher gusts.
MONDAY: Mostly sunny. Low 6. High 34.
TUESDAY: Mostly cloudy. PM rain or snow showers. Low 29. High 42.
WEDNESDAY: Partly sunny. Low 29. High 45.
THURSDAY: Partly cloudy. Low 25. High 40.