Forecast Summary from the National Weather Service

A very active weather pattern will continue for the remainder of the week into the upcoming weekend.

Today, an area of low pressure will intensify. Light snow will envelop the region through the day and into the evening hours. Heaviest snowfall amounts are expected across southeast New England, especially the outer-Cape and Nantucket where around 2 to 4 inches are forecast. Behind this system, northwest winds will usher cold arctic air across the region. The combination of the two will result in wind chill values into Friday morning of around 15 to 25 degrees below zero across interior Southern New England.

Another night of cold conditions is expected late Friday night into Saturday morning. Temperature lows across much of the area will be well below zero. Combined with lighter winds, there is the likelihood for wind chill values to fall as low as 20 below-zero across the interior.

Into the weekend, light to moderate snow will spread across southern New England Saturday into Saturday evening. Overnight into Sunday, this low pressure system will strengthen quickly presenting the potential for blizzard conditions across east and southeast coastal New England with snowfall amounts in excess of a foot and winds gusts up to 60 mph on the Cape and Islands, up to 50 mph along the coast and in southern Bristol and Plymouth counties, and up t0 40 mph in central and northeastern MA. The storm concludes Sunday night into Monday, but behind it, some of the coldest air of the season arrives delivering the potential of high temperatures on Monday barely breaking the teens in eastern MA and in single digits in central and western MA.

Highlights of the weekend storm include:

  • Potential for a significant snowfall of over a foot with blizzard conditions across east and southeastern coastal New England
  • Significant impacts to travel.
  • Northerly winds will be gusting 35 to 45 mph Sunday into Sunday night with 50+ mph gusts possible for the Cape and the Islands.
  • Snow will be fluffy and combined with winds expect blowing and drifting of snow.
  • Expect visibilities of a quarter mile or less, especially for east and southeastern coastal Massachusetts.
  • Tides above 10 feet in Boston Sunday morning; surge likely; threat to north-facing beaches (i.e., Cape Cod Bay).
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