Forecast discussion: Well, the busiest travel day of the year has been nothing but wet for the drivers in eastern Massachusetts as we move into Wednesday evening. Despite heavy rainfall during the morning hours, the rain/snow line never moved further east. So, Boston has been seeing heavy rainfall for much of the day.
So, if you had a chance to see the morning or noon news, you probably noticed the snow accumulation maps showing less amounts. Well, as the low tracked up the coast early Wednesday morning, the low’s center took a more westerly track. So, we remained in the warmer sector of the storm. Therefore, most of the day the state has seen mostly rain, with some mixture of sleet west of Boston. As we move into the evening, the colder air will move west to east, allowing people to see some frozen precipitation.
By about 3 or 4 a.m. Thursday morning, enough cold air should turn the precipitation to all snow. But, we will only see light snow showers, as the majority of the heavier precipitation moved north. Looking over the snow maps, I feel WPRI-TV’s snow map best resembles my forecast. Boston may see an inch of snow on the ground by the time everyone wakes up to begin heating the oven and starting the turkey. Moving west to Worcester County, I believe only 2-4 inches will fall.
There may be a few passing snow showers while we sit down at the dinner table in the afternoon. This is due to a second low pressure system forming out into the Atlantic. We may receive the outer edge of the precipitation shield into Thursday night. Some snow showers may continue into Black Friday, but this will not interrupt the highways or roads for any early shopping.
The weekend looks to be rather quiet, as a high pressure ridge moves over the eastern U.S. Friday evening. However, we will keep moisture in the upper levels of the atmosphere, so we will keep partly sunny skies during the daytime hours Saturday and Sunday, and mostly cloudy skies during the night. A new cold front will bring the risk of rain showers by Sunday evening. However, we will receive some warmer air from the south, as high temperatures may reach 50 degrees by Sunday afternoon. The warmer air will stick around for Monday, and highs will reach the lower 50’s under mostly sunny skies. The next chance for any showers will be Wednesday morning, as a warm front helps to raise our temperatures back into the upper 40’s to lower 50’s.
I wish all my readers a Happy Thanksgiving. Please drive safely if you have to be out this evening. I will not be updating the forecast until Friday evening, November 28.
72 hour forecast:
Tonight: Expect a mix of rain, snow and sleet up to 2 a.m. before changing to a snow/sleet mix after 2 a.m. The precipitation becomes all snow by 4 a.m. The coastal areas, including the Cape and Islands, will remain mostly rain. By sunrise, I am only expecting up to an inch of snow in the Capital City, with 2-4 inches between Boston and Worcester County.
Thanksgiving Day: Morning snow showers end by 11 a.m. Partly to mostly sunny skies expected by the afternoon. Passing snow/rain showers are still possible in the early afternoon. We will have a high of 39 with north-northwest winds of 7-10 mph.
Thursday night: Mostly cloudy with possible snow showers and a low of 29. Winds will come from the north-northwest at 9-12 mph.
Friday: Isolated snow showers end by 11 a.m. with clearing skies and a high of 36.
Friday night: Partly cloudy with a low of 22.
Saturday: Partly sunny skies with a high of 38.
Saturday night: Mostly cloudy with a low of 32.
Sunday: Partly sunny with possible showers by 9 p.m. Highs 48-51, lows 39-42.
Monday: Isolated showers end by 8 a.m. with sunny skies by the afternoon and slightly colder temperatures. Highs 51-54, lows 26-29.
Tuesday: Mostly sunny. Highs 36-39, lows 29-32.
Wednesday: Overcast in the morning with scattered showers by 11 a.m. Highs 49-52, lows 38-41.