Forecast discussion: Although Boston and most of eastern Massachusetts was spared, the Cape and Islands felt the full brunt of a late Nor’easter. Boston only received a coating of snow, with about an inch in New Bedford. The Cape and Islands received at least 6 inches, with Nantucket Island receiving the most snowfall, coming in at 9 inches. Also, with the winds reaching 50 mph, it made travelling almost impossible. Schools were closed along much of the coastline. Also, it created high waves in the waters outside of Boston and Provincetown Harbors.
The strong winds also created some power outages. At noon on Wednesday, NStar reported about 400 power outages along the Cape. National Grid reported 1,200 power outages on Nantucket. This storm created hurricane force wind gusts. At the airport on Nantucket, they reported a wind gust of 92 mph. Meanwhile, a weather buoy off the shores of Portland, ME reported a wind gust of 112 mph! The only other weather feature strong enough to make a wind that strong is a category 3 hurricane. In fact, the central pressure of the low was one millibar higher than Hurricane Bob back in 1991. For Boston, winds remained sustained at 27-32 mph with gusts of 45-50 mph.
As we head through the overnight, skies will clear but winds will remain strong. It will also be bitterly cold for this time of the year, as overnight lows fall into the middle to upper teens. Wind chills in the area will make it feel like zero at times. As the high moves closer to New England, the winds will continue to diminish, and temperatures will increase slightly. It will not be until Friday that we will fell spring like temperatures. But, a cold front will pass through New England, and bring showers by late Friday morning. The front will move offshore, and precipitation will end by early Saturday morning. Rain will return for the rest of the weekend, as a low pressure system along that frontal boundary moves over Long Island Sound. We will see moderate rainfall Saturday night, and will not taper to showers until the mid-afternoon on Sunday. So, this may cause some street flooding at times. The showers finally end by early Monday morning.
For the rest of the forecast period, we will see partly to mostly sunny skies and seasonable temperatures. However, some computer models are predicting more showers for Tuesday. For now, I will keep them out of the forecast, but my overall confidence in Tuesday’s forecast is low.
72 hour forecast:
Tonight: Partly cloudy, windy, and cold with a low of 19. Winds will come from the northwest at 20-25 mph with gusts of 35-40 mph.
Thursday: Mostly sunny with a high of 40. Winds will turn to the west-southwest at 11-14 mph by the afternoon.
Thursday night: Becoming cloudy during the overnight with a low of 33. Winds will come from the southwest at 9-12 mph.
Friday: Cloudy with showers arriving by 11 a.m. and breezy with a high of 55.
Friday night: Showers end by midnight but remaining cloudy with a low of 40.
Saturday: Partly sunny with showers arriving by 4 p.m. We will see a high of 50.
Saturday night: Moderate rain with a low of 37.
Sunday: Windy with moderate rain tapering to showers by the mid-afternoon. Highs 42-45, lows 32-35.
Monday: Showers end during the early morning, and becoming mostly sunny by mid-morning. Highs 45-48, lows 33-36.
Tuesday: Partly to mostly sunny. Highs 48-51, lows 33-36.
Wednesday: Partly to mostly sunny. Highs 47-50, lows 32-35.