Friday, March 13, 2015

New England Snow on Winter's Final Weekend (FORECAST)

Jon Erdman
Published: March 13, 2015

By March, only the avid skier, snowboarder or student looking for more snow days wants more snow, particularly in New England during one of the snowiest seasons on record.
Ample moisture flowing into cold air will likely produce snow in parts of the Northeast this weekend.
After finally getting a warmer tease this week, more snow is on the way for parts of the Northeast during the final weekend of winter. Our apologies. We're only the messengers here.

The Ingredients

A plume of fairly deep and moist air along with a weakening upper-level low-pressure system is pushing northeastward from the southern U.S.
This moisture will join forces with cold air  – by "cold" we mean air at or below freezing near the ground – lingering over parts of the Northeast. In addition, fresh cold air will be arriving from the Great Lakes, ushered in by a dip in the jet stream.
This arriving dip in the jet stream, together with low pressure moving into the Gulf of Maine or near Nova Scotia, will allow snow, and some wind, to persist in parts of New England and Upstate New York through Sunday.

Saturday's Forecast

Sunday's Forecast

Snowfall Forecast

The Forecast

- Saturday: Moisture from the south should start intercepting the lingering cold air over at least parts of Upstate New York and northern New England. The best chance to see mainly snow is in parts of northern New Hampshire and Maine. Surface temperatures should stay warm enough in Boston rain. A little patchy freezing rain early may coat parts of Upstate New York, northern Vermont, New Hampshire and western Maine.
- Saturday night-Sunday: It gets more interesting, as the more vigorous jet stream dips in, bringing deeper, colder air into at least parts of the Northeast and interacts with a lagging offshore low. Snow may be heavy over parts of northern New England. This could be accompanied by strong winds. Rain may change to snow across parts of Upstate New York and southern New England for a time before the precipitation ends later Sunday evening.
Here is our general outlook:
Best chance of 6 inches or more of snow: Parts of Maine, northern New Hampshire, far northeast Vermont
- Some accumulating snow: Upstate, central New York, Vermont, southern New Hampshire, Massachusetts.
Little or no accumulating snow: I-95 corridor from NYC metro southward.
(FORECASTS: Boston | Bangor, Maine | Albany, New York)
Note that precipitation will fall as rain for a time across parts of the heavy southern New England snowpack.
However, the warm sector of this system will move along quickly enough to minimize what otherwise might be a threat of flooding from melting snow and rain.
(MORE: Warm Spring = Bad News For New England?)
Check back with us at weather.com and The Weather Channel for the latest on this mid-March weekend mess.

MORE: Boston's Snow Misery 2015

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