With a little more snow on the way Tuesday morning, it looks like much of the region is going to have a White Christmas.
High pressure hangs on today with sunshine, but clouds start to move in later today as another Alberta Clipper moves into the Great Lakes, passing north of the region early Tuesday. We’ll see some snow showers develop tonight as a warm front ahead of the system moves in, but most of these will be north of the Mass Pike and on the light side. There may be a bit of a lull after these initial snow showers, and temperatures will start rising overnight as winds shift into the southwest. Light snow and snow showers redevelop before daybreak and continue through the morning before a cold front moves through. Across parts of the Cape Cod and possibly southeastern Massachusetts, temperatures will be near or even above freezing, so the precipitation may fall as rain or a mix of snow and rain. By the time everything winds down by early afternoon, accumulations will be on the order a coating to an inch in most places, mainly north of the Mass Pike, with the possibility for a few spots from the Merrimack Valley into southern New Hampshire seeing a little more As you head into central New Hampshire (north of Concord), some heavier amounts are possible. We’ll start to clear out later Tuesday, then a large area of high pressure builds in and remains in control right into the weekend with generally dry weather and temperatures near or a little above where they should be in late December. We’ll turn cloudy for Sunday as another low pressure system heads this way, but whether any precipitation from it makes it in on Sunday or waits until Monday remains to be seen.
Monday: Morning clouds and a few more snow showers across the Outer Cape, a mix of sun and clouds elsewhere. High 23-30.
Monday night: Becoming cloudy with some snow showers likely around midnight. Light snow and snow showers may redevelop near daybreak. Low 17-24 during the evening, temperatures start rising after midnight.
Tuesday: Morning clouds with light snow or snow showers, possibly mixed with rain across Cape Cod, some clearing develops in the afternoon. High 31-38, a little warmer across Cape Cod.
Tuesday night: Clouds hang around across Cape Cod, becoming clear to partly cloudy elsewhere. Low 15-22, milder across Cape Cod.
Christmas Day: Partly to mostly cloudy across Cape Cod with a few snow showers possible, partly sunny elsewhere. High 29-36.
Thursday: A mix of sun and clouds. High 33-40.
Friday: Partly to mostly sunny. High 35-42.
Saturday: Intervals of sun and clouds. High 37-44.
Sunday: More clouds than sunshine with a chance for showers. High 37-44.
Storm HQ 