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Eye on the Sky

July 17, 2018

Detailed Forecast

Today

Patchy fog early, then partly to mostly sunny. Highs in the low to mid 80s south, and mid to upper 70s north, some lower 70s in the hills, and in the valleys near the Vermont/Québec border. Northwest winds 10 to 15 mph.

Tonight

Becoming clear with areas of river valley fog. Lows in the 50s, except in the 40s northeast and in the Adirondacks, with colder hollows around 40. Winds diminishing to light and variable.

Significant/Hazardous Weather

A severe thunderstorm will remain possible this evening in areas south and east of the Champlain Valley, before storms taper off in eastern areas around sundown.

Extended Forecast

Today

Patchy fog early, then partly to mostly sunny. Highs in the low to mid 80s south, and mid to upper 70s north, some lower 70s in the hills, and in the valleys near the Vermont/Québec border. Northwest winds 10 to 15 mph.

Tonight

Becoming clear with areas of river valley fog. Lows in the 50s, except in the 40s northeast and in the Adirondacks, with colder hollows around 40. Winds diminishing to light and variable.

Thursday

Mostly sunny and pleasant after any early fog dissipates. Highs in the low to mid 80s south and in the Champlain Valley, upper 70s to lower 80s elsewhere north. Light winds, variable to west.

Thursday Night

Clear skies. Lows from the mid 50s to around 60, except low to mid 50s northeast and in the Adirondacks, with colder hollows in the upper 40s.

Friday

Partly to mostly sunny. Highs from the mid 80s to around 90.

Friday Night

Partly cloudy. Lows in the mid to upper 50s east of the Greens, low to mid 60s in the west.

Saturday

Mostly sunny. Highs again from the mid 80s to around 90.

Significant/Hazardous Weather

A severe thunderstorm will remain possible this evening in areas south and east of the Champlain Valley, before storms taper off in eastern areas around sundown.

Recreational Forecast

General:

This afternoon: Mostly cloudy with showers and thunderstorms likely south and scattered north, except partly cloudy in the Adirondacks and St. Lawrence Valley. Severe storms possible. Highs in the upper 70s to mid 80s. South to southwest winds 10 to 15 mph.

Brief:

A cold front plowing across western New York and the upper Ottawa Valley to start the morning will reach the St. Lawrence Valley early this afternoon, and western Maine through northwestern Connecticut around sunset. Showers and thunderstorms, mostly ahead of the front, will sweep over us in bands. Given the high precipitable water values in the air mass over us, and the favorable position of a ventilation jet stream rounding the base of the trough in which the front is embedded, heavy rain will accompany some of these storms. A Flash Flood Watch has been posted for far southern parts of Vermont and New Hampshire into Massachusetts this afternoon and evening. Dry weather will follow the front’s passage tomorrow through Saturday.

Winds:

Today: South to southwest 10-15 mph. Tonight: Shifting to west to northwest 5-15 mph. Wednesday: Northwest 8-15 mph. On Lake Champlain, the National Weather Service forecast is for southwest wind 5-15 kts today, shifting to northwest 10-15 kts tonight. Wednesday, north wind 10-20 kts. Waves 1-2 feet today and tonight, and 1-3 feet on Wednesday. For further information on lake levels and water temperatures consult http://forecast.weather.gov/product.php?site=BTV&product=REC&issuedby=BTV

Mountain:

Today: Showers and thunderstorms, some with heavy rain and gusty wind. Summits occasionally in cloud. Tonight: Showers ending northwest to southeast this evening, then partly to mostly cloudy. Wednesday: Partly sunny to start in the Adirondacks, and mostly cloudy over the Greens and Whites to start with the slight chance for a sprinkle. Then clearing.

Winds Today Thursday
2000ft NW 10-15 mph NW 08-15 mph
4000ft NW 10-15 mph NW 10-15 mph
6000ft NW 20-25 mph NW 10-15 mph
Temperatures Today Thursday
2000ft 69-72 Nr 75
4000ft 59-62 Nr 65
6000ft Nr 49 Nr 55

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