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Eye on the Sky

January 23, 2017

Detailed Forecast

Today

Cloudy, with a slight, but rising chance of snow, sleet, or freezing rain north late, and a wintry mix developing south. Highs 28-38. East wind increasing to 15-30 mph with some PM gusts over 50 mph over high terrain, south.

Tonight

Windy. Snow and sleet developing north. Snow changing to sleet or freezing rain south. Precipitation may be moderate or heavy at times. Moderate snow and sleet accumulation possible —heaviest over east-facing slopes of southern Adirondacks, s’n Greens, and New Hampshire monadnocks. Lows 22-30.

Tuesday

Snow and sleet eastern New York and the St. Lawrence Valley of Quebec; sleet mixed with snow or freezing rain at times western Vermont and northern New Hampshire through the Eastern Townships; sleet, freezing rain and rain in Vermont’s Northeast Kingdom; sleet and freezing rain changing to rain southeast Vermont and southern New Hampshire. Possible total snow and sleet accumulations: 2-6” Vermont, New Hampshire, northwest Massachusetts, and Eastern Townships; 3-8” Adirondacks and St. Lawrence Valley. Highs 27-35.

Tuesday Night

Precipitation tapering to scattered snow showers. Lows 20-30.

Significant/Hazardous Weather

WINTER WEATHER ADVISORY 7PM MONDAY-10PM TUESDAY all of e’n NY and VT/NW MA. WIND ADVISORY S’N GREEN MTNS, NY TACONICS, MASSACHUSETTS BERKSHIRES 7 AM MONDAY-7 AM TUESDAY. WINTER STORM WATCH S’N Half of NEW HAMPSHIRE MONDAY EVENING THROUGH TUESDAY AFTERNOON. WINTER STORM WATCH ALL S’N QUEBEC LISTENING REGION FROM MONTREAL METRO REGION THROUGH EASTERN TOWNSHIPS.

Extended Forecast

Today

Cloudy, with a slight, but rising chance of snow, sleet, or freezing rain north late, and a wintry mix developing south. Highs 28-38. East wind increasing to 15-30 mph with some PM gusts over 50 mph over high terrain, south.

Tonight

Windy. Snow and sleet developing north. Snow changing to sleet or freezing rain south. Precipitation may be moderate or heavy at times. Moderate snow and sleet accumulation possible —heaviest over east-facing slopes of southern Adirondacks, s’n Greens, and New Hampshire monadnocks. Lows 22-30.

Tuesday

Snow and sleet eastern New York and the St. Lawrence Valley of Quebec; sleet mixed with snow or freezing rain at times western Vermont and northern New Hampshire through the Eastern Townships; sleet, freezing rain and rain in Vermont’s Northeast Kingdom; sleet and freezing rain changing to rain southeast Vermont and southern New Hampshire. Possible total snow and sleet accumulations: 2-6” Vermont, New Hampshire, northwest Massachusetts, and Eastern Townships; 3-8” Adirondacks and St. Lawrence Valley. Highs 27-35.

Tuesday Night

Precipitation tapering to scattered snow showers. Lows 20-30.

Wednesday

Mostly cloudy north. Chance for snow showers. Becoming partly cloudy south, slight chance for snow or rain showers. Highs 31-41.

Wednesday Night

Mostly cloudy. Chance for snow showers. Lows 20-25 RT 2 north; 25-35 otherwise.

Thursday

Mostly cloudy. Chance for snow or rain showers. Highs near 30 RT 2 north; 33-43 otherwise.

Thursday Night

Mostly cloudy north through southern mountains; variable clouds southern valley floors. Scattered snow showers. Lows 15-25.

Friday

Mostly cloudy mountains, scattered snow showers. Variable clouds northern and southwestern valleys, widely scattered flurries. Partly cloudy southeastern valley floors. Highs 22-32.

Significant/Hazardous Weather

WINTER WEATHER ADVISORY 7PM MONDAY-10PM TUESDAY all of e’n NY and VT/NW MA. WIND ADVISORY S’N GREEN MTNS, NY TACONICS, MASSACHUSETTS BERKSHIRES 7 AM MONDAY-7 AM TUESDAY. WINTER STORM WATCH S’N Half of NEW HAMPSHIRE MONDAY EVENING THROUGH TUESDAY AFTERNOON. WINTER STORM WATCH ALL S’N QUEBEC LISTENING REGION FROM MONTREAL METRO REGION THROUGH EASTERN TOWNSHIPS.

Recreational Forecast

General:

Cloudy, with a slight, but rising chance of snow, sleet, or freezing rain north late, and a wintry mix developing south. Highs 28-38. East wind increasing to 15-30 mph with some PM gusts over 50 mph over high terrain, south.

Brief:

Large, intense low pressure over western North Carolina this morning will redevelop near the mouth of the Chesapeake Bay by this evening, then lift north-northeastward towards Nantucket tonight and Tuesday. The robust storm circulation will pull copious Atlantic moisture inland over New England where it will overrun a marginally cold wedge of polar air feeding southwestward from High pressure over south-central Quebec. This should produce a sizeable fall of mixed wintry precipitation. At this time, it looks like sleet will predominate after an initial burst of sleety snow over westerm Vermont, with freezing rain mixing in or becoming predominant over northeastern Vermont. Southeastern Vermont and southern/central New Hampshire may get a good burst of sleety snow or plain sleet, followed by freezing rain, then plain rain for a time. Sleety snow should hang on over the Adirondacks into the St. Lawrence Valley/Montreal Metro area. The Eastern Townships and northern New Hampshire will see sleety snow, then possibly a mix. This will be a real mess. Heaviest precipitation should fall tonight and Tuesday morning for the southern half of the region and late tonight through Tuesday midday to mid-afternoon for the northern half.

Winds:

Today: East increasing to 10-25 mph with some PM gusts to 50 mph over high exposed terrain, south. Tonight: East 10-30 mph with some gusts to 50 mph over high exposed terrain, south. Tuesday: Northeast 10-20 mph. On the open waters of Lake Champlain, the National Weather Service forecast is for east winds 5-10 kts today and this evening, becoming northeast at 5-15 kts after midnight. Tuesday, North wind 10-15 kts, diminishing to 5-15 kts in the afternoon. Waves on the open water 1 foot or less today through this evening, increasing to 1-2 feet after midnight and continuing so through Tuesday. For further information on lake levels and water temperatures consult http://forecast.weather.gov/product.php?site=BTV&product=REC&issuedby=BTV

Mountain:

Today: Cloudy or becoming so. Sleet or snow spreading north during the PM. Tonight: Sleet and snow developing north; sleety snow changing to sleet south. Light to moderate accumulation possible. Tuesday: Sleet or freezing rain s'n Greens/Tacs/Berks/Monadnocks; Snow or sleet Ads, n'n Greens, Whites. Some freezing rain may mix in over the Whites, and the Northeast Kingdom highland peaks.

Winds Today Tuesday Wednesday
2000ft E 10-20 mph E-NE 15-20 mph W-NW 5-10 mph
4000ft ESE 20-40 mph E 30-50 mph WNW 10-15 mph
6000ft ESE 15>35 mph E 50>30 mph NW 20-25 mph
Temperatures Today Tuesday Wednesday
2000ft 28-33 29-32 30-35
4000ft 24-27 27-33 26-33
6000ft Nr 17 Nr 27 29>25