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Eye on the Sky

September 18, 2018

Detailed Forecast

Today

Some early fog, then becoming mostly sunny west; mostly to partly cloudy east, except remaining mostly cloud northeast, with the slight chance of a shower over high terrain. Highs in the mid 60s north, upper 60s to lower 70s south. North winds 5 to 10 mph.

Tonight

Partly cloudy to clear, with areas of river valley fog developing late. Lows in the low to mid 50s, except in the 40s northeast and in the Adirondacks. North winds 5 to 10 mph in the evening, diminishing to light and variable.

Significant/Hazardous Weather

Extended Forecast

Today

Some early fog, then becoming mostly sunny west; mostly to partly cloudy east, except remaining mostly cloud northeast, with the slight chance of a shower over high terrain. Highs in the mid 60s north, upper 60s to lower 70s south. North winds 5 to 10 mph.

Tonight

Partly cloudy to clear, with areas of river valley fog developing late. Lows in the low to mid 50s, except in the 40s northeast and in the Adirondacks. North winds 5 to 10 mph in the evening, diminishing to light and variable.

Thursday

Areas of morning valley fog, otherwise mostly to partly sunny through midday, then increasing clouds from the Adirondacks and Route 2 northward, and slight chance of a late-day shower in the Adirondacks and St. Lawrence Valley. Highs from the mid 60s to around 70, except lower 60s in the hills of the Northeast Kingdom and Northern New Hampshire.

Thursday Night

Showers becoming likely north, widely scattered south. Lows from 50 to 60 east to west.

Friday

Clouds, perhaps a few breaks of sun. A rising chance of showers in the afternoon, especially west of the Green Mountains. Breezy and milder. Highs in the 70s, a few upper 60s over the higher terrain northeast.

Friday Night

A good chance for showers. Lows in the upper 40s to mid 50s.

Saturday

Variable clouds and sun, with more sun in southern valleys, and more clouds with a spotty shower over the higher terrain north. Cool. Highs in the 60s, a few upper 50s over the higher terrain north.

Significant/Hazardous Weather

Recreational Forecast

General:

This Afternoon: Rain ending early southeast. Widely scattered showers developing from the Adirondacks and Route 4 northward; a rumble of thunder possible. Highs from the upper 70s to mid 80s. Winds variable to north at around 5 mph, except 5 to 10 mph, and gusting to 15 late in the Champlain Valley.

Brief:

Mild, tropical rains from the remnant low pressure area that was Florence, are coming down in buckets in southern areas, particularly Lake George, Rutland and Orange counties, and south of the White Mountains. The storm’s center is tracking east into the Catskills of NY. At the same time, a weak cold front is settling south, with a ripple of low pressure along it, north of Quebec City. As this storm heads east, the front will settle south, bringing a few localized showers to northern areas, though a few breaks of sun are possible as well. Behind the front, much cooler, much more seasonable, September air spreads south over us later tonight into Wednesday, and lasting for several days or more. Some clouds will linger north and through much of NH later tonight into tomorrow morning, before gradual clearing increases the sunshine. It should remain quiet through Thursday morning, then a warm front approaches Thursday afternoon, increasing the clouds, and leading to showers by evening through the Adirondacks and St. Lawrence Valley, spreading east Thursday night. Warmer air briefly returns Friday, perhaps some breaks of sun, with a rising chance of afternoon showers, especially west of the Green Mountains. On Friday night, a cold front swings through with showers, likely more concentrated north, followed by chilly weather for next weekend, timed well with the arrival of autumn.

Winds:

Winds today light, becoming north up to 10 mph, gusting to 20 mph in the Champlain Valley, with waves on the open waters of Lake Champlain building to 1 to 2 feet. Tonight, winds from the north 5 to 10 mph, gusting to 20 mph in the Champlain Valley, with waves on the open waters of Lake Champlain 1 to 3 feet. On Wednesday, winds light, mainly from the north up to 10 mph, gusting to 15 mph in the Champlain Valley, with waves on the open waters of Lake Champlain 1 to 2 feet. Thursday’s outlook calls for light winds, becoming south 5 to 10 mph west of the Green Mountains.

For more details on Lake Champlain, go to: http://forecast.weather.gov/product.php?site=BTV&product=REC&issuedby=BTV

Mountain:

Low clouds and rain will obscure the southern summits today, with rain, occasionally moderate to heavy south of Rt. 4 and Laconia. Northern summits will be cloudy, with a few showers, mainly in the afternoon. Winds light, and temperatures a bit cooler. Wednesday calls for clouds, a few breaks of afternoon sun, with light north to northwest winds, and cooler temperatures. The outlook for Thursday starts with sun, then increasing clouds over northern areas, lowering late in the day with a rising chance of showers in the Adirondacks toward evening. Winds turning to the south, and temperatures about the same.

Winds Today Thursday
2000ft N 5 to 15 mph S 10 > 20 mph
4000ft N 5 to 15 mph SSW 10 > 20 mph
6000ft NW 30>N 20 mph W 20 to 30 mph
Temperatures Today Thursday
2000ft near 60 59 E/64 W
4000ft low 50s low 50s
6000ft low 50s low 50s

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