526 FXUS61 KBTV 120643 AFDBTVArea Forecast Discussion National Weather Service Burlington VT 243 AM EDT Sun Oct 12 2025
.SYNOPSIS... A coastal low over the Mid-Atlantic will bring increasing clouds to the region today, with precipitation chances arriving later tonight. Breezy easterly winds are expected across southern Vermont today, with some localized downslope wind gusts up to 35 mph possible tonight into Monday over eastern Rutland County. Cool and mostly dry conditions will continue beyond Tuesday under cyclonic flow through the remainder of the week.
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.NEAR TERM /THROUGH MONDAY/... As of 239 AM EDT Sunday...The first half of today will be relatively quiet as the region remains in between a departing area of high pressure and an approaching coastal low, which will bring increasing clouds throughout the day and be the main weather feature of note as we head into the beginning of next week. The tightening gradient across the region will allow for some breezy winds, particularly across southern Vermont where wind gusts of 20 to 30 mph will be the most likely. Although relative humidity values will be increasing, with minimum RH values around 40% to 50%, the gusty winds in combination with the recent dry conditions could lead to some fire weather concerns early this afternoon, with additional information in the Fire Weather section below. Temperatures today will generally be in the low to mid 60s, with some locations in the St. Lawrence Valley nearing 70.
Precipitation will start approaching the region later this evening, but the bulk of the precipitation will overspread the region during the day Monday. There continues to be a rather sharp gradient of precipitation across the region, with portions of southern Vermont likely seeing an inch of rainfall, while northern Vermont and the St. Lawrence Valley only receiving hardly anything. Breezy conditions will continue heading into Monday, with some downsloping off the southern Greens bringing gusts of 30 mph in Rutland County. Mountain summits could see gusts up to 40 to 50 mph as they will be more exposed and higher receiving the bulk of the low level jet winds. Overnight lows will be on the milder side compared to the last several nights given the increased cloud cover, with temperatures generally in the 40s. The rainy and overcast conditions will help keep temperatures cool during the day on Monday, with high temperatures in the 50s, with some locations east of the Green Mountains struggling to climb out of the 40s.
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.SHORT TERM /MONDAY NIGHT THROUGH TUESDAY/... As of 239 AM EDT Sunday...Precipitation will begin to shift eastward Monday night, with conditions trending drier for Tuesday, although a few lingering showers cannot be ruled out. Overnight lows Monday night will be on the milder side once again, generally in the 40s. Seasonable temperatures are expected for Tuesday, with highs climbing into the upper 50s and lower 60s with plenty of lingering cloud cover.
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.LONG TERM /TUESDAY NIGHT THROUGH SATURDAY/... As of 216 AM EDT Sunday...A highly amplified pattern is progged acrs the CONUS for Tues night into next weekend with trof acrs the Rockies, ridge over the central Plains, and mid/upper lvl trof over the ne CONUS. The northerly flow aloft wl advect a pocket of cooler temps acrs our cwa for mid week with brisk winds expected. The orientation of the mid/upper lvl flow is from central Canada and pw values drop below 0.25" so not anticipating much qpf in the long term. Best potential for a few light showers wl be associated with s/w energy and cold frnt on Tues night into Weds, but moisture parameters are limited, so mainly a dry cold frnt anticipated. A few mtn induced showers are possible on Weds under moderately strong caa. Also, as a well aligned northerly flow of progged 850mb air btwn -4C and -7C moves acrs the warmer Lake Champlain waters, expect lake enhanced clouds with a few sprinkles/light rain showers possible. Given progged 850mb winds of 20 to 35 knots and good mixing, a prolonged Lake Wind Advisory is likely for Weds thru Thurs of this upcoming week. In addition, given the very dry air aloft and potential for some mixing, we wl have to watch winds/rh`s closely for potential fire wx concerns for mid to late week. Difficult to determine rh`s at this stage, given the cool airmass in place. Did utilize our in house mtn max T tool to integrate cooler summit temps on Weds and Thurs associated with progged 850mb temps btwn -4C and -7C, which support highs mainly in the upper 20s to lower 30s summits to mid 40s to lower 50s warmer valleys. Temps start to modify on winds shift to the south/southwest by late week into next weekend.
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.AVIATION /07Z SUNDAY THROUGH THURSDAY/... Through 06Z Monday...Near term aviation challenge is potential for IFR at SLK/MPV in fog/br early this morning. Currently VFR conditions prevail with clear skies and light winds, which have allowed temperatures to fall at or below cross over values. Feel these conditions may help to produce a window of IFR at both MPV/SLK around sunrise this morning, so have tempo IFR btwn 09z-11/12z. Low level winds develop at 10 to 15 knots toward 12z, so any IFR should quickly improve. Otherwise, rest of our taf sites stay VFR for the next 12 to 24 hours with increasing east/northeast winds at 10 to 15 knot with localized gusts at RUT of 20 to 25 knots possible.
Outlook...
Sunday Night: Mainly VFR, with local MVFR possible. Chance SHRA. Columbus Day: Mainly VFR, with local MVFR possible. Chance SHRA, Likely RA. Monday Night: Mainly VFR, with areas MVFR possible. Chance SHRA. Tuesday: Mainly VFR, with areas MVFR possible. Slight chance SHRA. Tuesday Night: Mainly VFR, with areas MVFR possible. Slight chance SHRA. Wednesday: Mainly MVFR, with areas VFR possible. Slight chance SHRA. Wednesday Night: Mainly VFR, with local MVFR possible. Slight chance SHRA, Slight chance FZRA. Thursday: Mainly VFR, with local MVFR possible. NO SIG WX.
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.FIRE WEATHER... Breezy easterly winds today, with gusts up to 30 mph possible, will lead to elevated fire weather concerns across southern Vermont today. Despite recent rain last week, dry conditions have persisted in southern Vermont. Thus while relative humidity values will only be 40-50%, fire weather concerns and fire spread will be heightened with the forecasted near critical wind gusts. Wetting rain from a coastal low will overspread the southern portions of the area by this evening which will mitigate the fire weather concerns heading into next week. Breezy easterly winds will continue with the onset of rain, in particular in the nearby western valleys of the southern Greens from downsloping. Fire weather concerns will decrease with the wetting rain tonight into Monday.
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.BTV WATCHES/WARNINGS/ADVISORIES... VT...None. NY...None.
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$$ SYNOPSIS...Kremer NEAR TERM...Kremer SHORT TERM...Kremer LONG TERM...Taber AVIATION...Taber FIRE WEATHER...WFO BTV
NWS BTV Office Area Forecast Discussion