9:13AM
DAYS 1-5 (NOVEMBER 18-22)
Discussion…
The 5-day run-up to Thanksgiving is here and many will be doing errands, finishing yard work, and perhaps doing some outside decorating and then comes the travel period for those departing or arriving for the holiday, so this is a high stakes period for weather impact. What can we expect? Variety, which is typical, but nothing that should result in any significant travel trouble. Let’s break it down day by day… Today, high pressure slips away and a warm front approaches, but it will take until tonight for its rain to reach the region so outside activities that need dry weather are a go for today! The warmest part of today will be tonight when the front passes and temperatures rise, and being in the warm sector will make the region very vulnerable to showers and even downpours as strong cold front approaches early Sunday. This front will cross the region from west to east by late morning and midday exiting via Cape Cod by early afternoon. The mild air of the morning will be replaced by wind and cold during the afternoon and this will continue through Monday, which will have a winter feel. A few stray snow showers may make a run at the higher elevations of southwestern NH and northwestern MA during the day, but don’t hear the word “snow” and suddenly think the wrong way. It will be a fine day for travel – just very chilly and windy. Look for dry and milder weather Tuesday as high pressure slips south of the region and we get a piece of “backside warmth”, relative to the season of course. Another cold front will cross the area Wednesday and may bring a passing rain shower as we’ll still be in relatively milder air, but it will turn colder again behind this system.
Detailed forecast…
TODAY: Clouds increase / sun fades. Highs 45-50. Wind light SE to S.
TONIGHT: Cloudy. Periods of rain through midnight. Scattered to numerous rain showers after midnight. Lows 40-45 evening. Temperature rising into the 50s overnight. Wind light SE to S evening, S to SW 10-20 MPH overnight.
SUNDAY: Mostly cloudy through early afternoon with episodes of rain showers, a few possibly heavy, and a slight risk of thunderstorms. Partly cloudy mid afternoon on. Highs 55-60 morning. Temperature falling into the 40s afternoon. Wind SW 10-20 MPH with higher gusts morning, shifting to W 15-25 MPH with higher gusts afternoon.
SUNDAY NIGHT: Clear. Lows 25-32. Wind W 15-25 MPH with higher gusts.
MONDAY: Mostly sunny to partly cloudy. Slight risk of isolated snow showers north central MA and southern NH. Highs 36-43. Wind WNW 15-25 MPH with higher gusts.
TUESDAY: Mostly sunny. Lows in the 20s. Highs from the middle 40s to lower 50s.
WEDNESDAY: Partly sunny. Slight chance of rain showers. Lows from the upper 30s to lower 40s. Highs in the 50s but may fall late.
DAYS 6-10 (NOVEMBER 23-27)
The front that goes by the day before will sit south of the region for 2 days and will allow a wave of low pressure to pass not too far south of the region and this will probably just bring a shield of cloudiness to the region later Thanksgiving Day and early Black Friday (November 23-24), but no significant weather problems are expected. More detail to come. Looking milder for November 25 and cooler November 26 as a cold front comes through during the weekend. During this time a short-lived blocking pattern may be establish and immediately amplify the pattern enough for a storm system to impact the region by the end of the period with odds favoring rain over anything frozen.
DAYS 11-15 (NOVEMBER 28-DECEMBER 2)
Amplified pattern delivers a shot of cold air to end November then moderating temperatures as December arrives and the flow flattens again. No major storminess expected.