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A dusting to an inch of snow before dark, most snow this evening

Posted by David Epstein  December 17, 2013 10:35 AM

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I just checked my thermometer and it read 4.6F. I donít like 4.6F. Nevertheless, I canít do anything about it, but hear the money turning on several times an hour. Sorry oil burner, but I have a love hate relationship with you. In addition to the cold, more snow is on the way, and since my driveway is still icy, in spite of building a beach there with sand the past few days, shoveling/snow blowing will be a real joy this evening.

I'll be updating the snow forecast as it changes on Twitter at @growingwisdom Please follow me there. Feel free to comment or ask questions too.

Another storm
There will be another system affecting the area later this morning into the first part of the night. During the day a low pressure area will develop along the coast south of New England, move along the coast and then exit up the Maine coastline and into eastern Canada. These types of systems can produce a few to several inches of snow and although not a big storm, this is most definitely going really foul up the Tuesday afternoon and evening commute. During the day, the storm is going to gain intensity. Itís also going to be pulling milder air in from the ocean. Unlike our weekend storm, the rain/snow line will not move very far north or west. Cape Cod, Nantucket and Marthaís Vineyard will most likely change to rain with that rain/snow line getting close to Logan Airport and the tip of Cape Ann at the end of the storm.

How much snow?
Our computer guidance is in very good agreement on snow amounts for tomorrow with a general 2-5 inch snowfall and some 4-6 inch amounts possible from the on the northeast side of Boston and also in eastern Middlesex County.
snowfall prediction.jpg

When does it start and end?
There will be some flurries or light snow from 11AM to 3 PM, but the heaviest snow is after that time period.latest map.jpg I think there will be two areas of snow from this storm, with a break between. We will have a burst of flurries around the start times the map on, then a small lull, then the steadier and heavier snow after 3 or 4 PM.
Start time.jpg
Snow will end from 8 PM to 11PM and perhaps linger a bit later over eastern Essex County.

Cold midweek, but milder finish
The cold continues into Wednesday when highs will still stay in the upper 20s to lower 30s, Boston should break freezing tomorrow. The good news, temperatures will warm further on Thursday along the coast, but staying colder inland and up north. This time of the year the sun is very weak and the only way we really melt snow quickly is with a mild rain. Friday is even milder with highs into the 40s for some real melting, at least on driveways, walkways and south facing areas. There could be some rain showers on Friday as well with the milder air.

The weekend
There is going to be some unsettled weather later this weekend. I am not sure just yet where the boundary between the cold and warm air will set up, but I am leaning towards more of a rain event Boston south and a mix north and west, but itís very early in the game.
Weekend garden tip
The video is from a few years back, but the tips on caring for a living Christmas tree are the same. Enjoy.

This blog is not written or edited by Boston.com or the Boston Globe.
The author is solely responsible for the content.

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About the author

David Epstein has been a professional meteorologist and horticulturalist for three decades. David spent 16 years at WCVB in Boston and currently freelances for WGME in Portland, ME. In 2006, More »
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