Skip to Content

Eye on the Sky

January 21, 2018

Detailed Forecast

Today

Mostly cloudy. Slight chance of snow or a wintry mix, then a rising chance west late in the day. Highs in the 30s south, and low to mid 30s north, except mid to upper 20s in the St. Lawrence Valley. Light winds, becoming east at 5 to 10 mph.

Tonight

Snow mixing with sleet east and north of I-89. Snow or a mix, changing to sleet and freezing rain, and rain west and south of I-89. Lows in the 20s, from near 20 northeast, to near 32 southwest. Southeast winds 5 to 15 mph east of the Greens, 10 to 15 mph and gusting to 30 mph west of the Greens.

Significant/Hazardous Weather

***WINTER WEATHER ADVISORIES: EFFECTIVE MONDAY AFTERNOON INTO TUESDAY FOR THE SOUTHERN ADIRONDACKS, AND FOR BENNINGTON AND WINDHAM COUNTIES IN VERMONT; EFFECTIVE MONDAY NIGHT FOR THE REST OF VERMONT OUTSIDE THE CHAMPLAIN VALLEY, AND FOR THE NORTHERN ADIRONDACKS AND ST. LAWRENCE VALLEY; FREEZING RAIN WARNING IN SOUTHERN QUEBEC***

***FLOOD WATCH TUESDAY THOROUGH WEDNESDAY FOR NEW HAMPSHIRE***

Extended Forecast

Today

Mostly cloudy. Slight chance of snow or a wintry mix, then a rising chance west late in the day. Highs in the 30s south, and low to mid 30s north, except mid to upper 20s in the St. Lawrence Valley. Light winds, becoming east at 5 to 10 mph.

Tonight

Snow mixing with sleet east and north of I-89. Snow or a mix, changing to sleet and freezing rain, and rain west and south of I-89. Lows in the 20s, from near 20 northeast, to near 32 southwest. Southeast winds 5 to 15 mph east of the Greens, 10 to 15 mph and gusting to 30 mph west of the Greens.

Tuesday

Any early wintry mix becoming rain south, with highs in the low to mid 40s. Rain in the Champlain Valley, with mix changing to rain elsewhere north by noon, highs in the 30s to around 40. South to southwest winds 10 to 15 mph, gusting to 30 mph.

Tuesday Night

Any rain or mix changes back to snow showers, ending in southern valleys, more frequent across the higher terrain north. Lows in the 20s north, in the upper 20s to low 30s south.

Wednesday

Mostly cloudy through the north, and the southern mountains, with scattered to numerous snow showers. A mix of clouds and sun in southern valleys. Colder. Highs in the low 20s to low 30s north to south.

Wednesday Night

Partly cloudy. Lows in the single digits to around 10 above across the south and in the Champlain Valley, zero to 5 below elsewhere north.

Thursday

Partly to mostly sunny with highs in the teens north, and upper teens to mid 20s south.

Significant/Hazardous Weather

***WINTER WEATHER ADVISORIES: EFFECTIVE MONDAY AFTERNOON INTO TUESDAY FOR THE SOUTHERN ADIRONDACKS, AND FOR BENNINGTON AND WINDHAM COUNTIES IN VERMONT; EFFECTIVE MONDAY NIGHT FOR THE REST OF VERMONT OUTSIDE THE CHAMPLAIN VALLEY, AND FOR THE NORTHERN ADIRONDACKS AND ST. LAWRENCE VALLEY; FREEZING RAIN WARNING IN SOUTHERN QUEBEC***

***FLOOD WATCH TUESDAY THOROUGH WEDNESDAY FOR NEW HAMPSHIRE***

Recreational Forecast

General:

***WINTER WEATHER ADVISORIES: EFFECTIVE MONDAY AFTERNOON INTO TUESDAY FOR THE SOUTHERN ADIRONDACKS, AND FOR BENNINGTON AND WINDHAM COUNTIES IN VERMONT; EFFECTIVE MONDAY NIGHT FOR THE REST OF VERMONT OUTSIDE THE CHAMPLAIN VALLEY, AND FOR THE NORTHERN ADIRONDACKS AND ST. LAWRENCE VALLEY; FREEZING RAIN WARNING IN SOUTHERN QUEBEC***

***FLOOD WATCH TUESDAY THOROUGH WEDNESDAY FOR NEW HAMPSHIRE***

Brief:

A stationary front that drapes across northern areas late today could prompt some light snow or freezing drizzle through the day tomorrow, but a wintry mix will likely become more pronounced by tomorrow evening, as low pressure moves northeastward into the Great Lakes region. Circulation around this system will take the front now overhead and send it back to the north as a warm front. The big question is how long that will take, since high pressure over eastern Canada will be feeding cold air in at the surface. At the same time warm and moist air coming in from the southwest will cause precipitation to fall into the colder air. The colder air should first dislodge in the valleys west of the Green Mountains tomorrow night, and then eventually east of the Greens on Tuesday, causing rain to fall across the region by Tuesday afternoon. A cold front Tuesday night will change any rain back to snow showers, signaling much colder air for the rest of the work week.

Winds:

Northwest winds 5 to 10 mph today at lower elevations, diminishing in the afternoon. Waves on the ice free waters of Lake Champlain will run 1 foot or less. Tomorrow's outlook calls for light winds, becoming easterly at 5 to 10 mph. Waves tomorrow on Lake Champlain will build to 1 to 2 feet in the afternoon.

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

Mountain:

Slightly colder over the mountains today, under mostly cloudy skies. Winds will be moderate from the northwest, strong over the Presidential Range, decreasing in the afternoon. Tomorrow's outlook calls for clouds, gradually lowering onto the summits from west to east, with a rising chance of snow or a wintry mix in the afternoon, mainly west.

Winds Today Tuesday
2000ft SSE 10 > 30 mph S 20 to 30 mph, G 40, bcmg SW
4000ft S 10 > 35 mph SW G 60 early, decr to 25 to 40 mph
6000ft SW 15 > 40 mph SW 55 to 80 mph
Temperatures Today Tuesday
2000ft 27 N/33 S 39 N / 45 S
4000ft around 32 33 N / 38 S
6000ft 20s around 32

Eye on the Sky is produced in the Sun Common Weather Center, powered by the sun:

suncommon

 

The Eye on the Sky Weather pages were developed with support from: