Forecast discussion: Friday seemed calm and peaceful, as high pressure brought sunshine to eastern Massachusetts. It gave time for the people of eastern Massachusetts to get ready for yet another snow storm, which is expected to start Saturday afternoon, and end by early Sunday morning. However, eastern Massachusetts will be seeing two different types of weather.
Right now, the National Weather Service has issued a Winter Storm Warning for Boston, starting at 10 a.m. Saturday and continuing through 5 a.m. Sunday. There is the potential of seeing at least 6 inches of snow. This also includes Bristol and Plymouth Counties. But, the eastern coastline, including the Cape and Islands, will be under a Blizzard Watch for the same time period. Because the coast will see stronger winds as the low continues to strengthen, visibility will be near zero at times.
I am expecting a mix of rain and snow to begin to fall around the capital city shortly after noon. As we move through the afternoon, the snowflakes will look bigger and wetter, as colder air tries to take over the upper levels. By the early evening, the precipitation should become all snow. We will see moderate to heavy snow from about 6 p.m. until about 2 a.m. before it begins to dissipate, and completely shut off by 4 a.m. For Boston, I am seeing between 4-7 inches when it is all said and done. But, as you head for the Cape and Islands, this area will actually see the most snowfall. This is because the low will be further out to sea, allowing for more moisture, more wind, and colder air to remain over the region. This part of the area, going west to Bristol County, may see between 8-12 inches of snow. I’ll make a link which will take you to a snowfall map right here. Also, winds will be strong during the overnight, as the low continues to strengthen. Wind gusts will be around 45 to occasional 50 mph at times, so expect some power outages.
By Sunday, we will see sunshine, as high pressure takes over New England. It will remain breezy, especially during the morning and early afternoon. Also, temperatures will be colder, thanks in part to the fresh snowfall on the ground, which will reflect the sun’s energy. Sunday night will be bitterly cold as well, as temperatures will try to remain in double digits in the capital city.
We will see limited sunshine on Monday, as a weak cold front passes through Southern New England. The precipitation along the front will be light snow early Tuesday morning, but will begin to turn to a wintry mix and then rain during the daytime hours. As we head into the middle of next week, the jet stream will actually create a very small upper level ridge over the eastern U.S. This will allow for some tropical air to actually move into Southern New England, giving us a temporary thaw. As warmer air filters over the region, a weak cold front may bring some isolated showers by Wednesday night. The most important part of the forecast is the temperatures. Yes, this is not a joke. Temperatures will actually rise into the middle and upper 40’s going into next weekend. This will help melt some of those large snow packs around the state.
72 hour forecast:
Tonight: Partly cloudy until midnight, with increasing clouds towards dawn. We will see a low of 26.
Saturday: Cloudy by the late morning with light to moderate snow/rain mix starting by 1 p.m. It will become all snow by the late afternoon, and will be heaviest during this time. Expect increasing winds by the mid-afternoon. We will see a high of 36 with northeast winds of 13-17 mph by the mid-afternoon.
Saturday night: Light snow ends by 3 a.m. with clearing skies. We will see a low of 21 with north-northwest winds of 25-30 mph with gusts of 45 mph.
Sunday: Mostly sunny and breezy with a high of 27. We will wake up to 4-8 inches within Boston.
Sunday night: Partly cloudy and bitterly cold with a low of 11.
Monday: Partly to mostly sunny with a high of 27.
Monday night: Cloudy with light snow starting around 1 a.m. and a low of 18.
Tuesday: Light snow changing to rain by mid-morning, before ending by the late afternoon. Highs 36-39, lows 26-29.
Wednesday: Partly to mostly sunny with possible showers by the evening. Highs 41-44, lows 31-34.
Thursday: Cloudy with isolated to scattered showers. Highs 44-47, lows 34-37.
Friday: Showers end by the late morning, partly sunny skies the rest of the day. Highs 47-50, lows 33-36.