


Area Forecast Discussion
Issued by NWS Burlington, VT
Issued by NWS Burlington, VT
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208 FXUS61 KBTV 121112 AFDBTV Area Forecast Discussion National Weather Service Burlington VT 712 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. && .NEAR TERM /THROUGH MONDAY/... As of 533 AM EDT Sunday...Just a quick update to the forecast this morning to account for the fog development in some of the favored locations this morning. The fog should dissipate later this morning, around 8AM or so, but any motorists on the road should use caution and be prepared for reduced visibilities. 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. && .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. && .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. && .AVIATION /11Z SUNDAY THROUGH THURSDAY/... Through 12Z Monday...As expected it was a very challenging aviation night with many sites, including MSS/RUT/MPV and EFK having at least a little IFR/VLIFR in fog/br, while BTV/SLK and PBG stayed VFR. Moving forward thinking IFR conditions linger another 1.0 to 1.5 hours at EFK and MPV, before better mixing arrives and conditions quickly improve. Otherwise, VFR conditions will prevail at all sites once the fog lifts thru 12z Monday. Cigs could lower toward MVFR at MPV after 06z associated with easterly upslope flow. Also, light rain wl arrive after 06z at RUT, but given easterly wind component thinking VFR conditions. Winds are east/southeast 5 to 15 knots with localized gusts 18 to 24 knots at RUT at times thru 12z Monday. Expect mostly northeast winds at SLK/MSS at 5 to 10 knots thru the period. Outlook... Columbus Day: Mainly VFR, with local MVFR possible. Chance SHRA, Likely RA. Monday Night: Mainly VFR, with areas MVFR possible. Chance SHRA. Tuesday: Mainly MVFR, with local VFR possible. Slight chance SHRA. Tuesday Night: Mainly VFR, with local MVFR possible. Slight chance SHRA. Wednesday: MVFR. Slight chance SHRA. Wednesday Night: VFR. Slight chance SHRA, Slight chance SHSN. Thursday: VFR. NO SIG WX. && .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. && .BTV WATCHES/WARNINGS/ADVISORIES... VT...None. NY...None. && $$ SYNOPSIS...Kremer NEAR TERM...Kremer SHORT TERM...Kremer LONG TERM...Taber AVIATION...Taber FIRE WEATHER...WFO BTV