


Area Forecast Discussion
Issued by NWS Burlington, VT
Issued by NWS Burlington, VT
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778 FXUS61 KBTV 020632 AFDBTV Area Forecast Discussion National Weather Service Burlington VT 232 AM EDT Tue Sep 2 2025 .SYNOPSIS... After a period of cooler days, warmer weather is opening the month of September. A few scattered showers will be possible today and tomorrow, but better chances for more widespread rain will arrive Thursday evening into Friday ahead of a large upper low. In addition to wetting rain, there will be some stronger winds Thursday and Friday, especially in the Champlain Valley and far northern Adirondacks. && .NEAR TERM /THROUGH WEDNESDAY/... As of 232 AM EDT Tuesday...Surface high pressure will remain centered over the region today before it gradually pushes off to the east tomorrow. Despite the surface high, there is a weak upper low moving through and it is bringing some high cloud cover. No rain is expected for the rest of the night, but the low will bring cool enough conditions aloft for a little instability to develop this afternoon, so a few isolated to scattered showers and thunderstorms are possible. The areas with the highest probabilities of seeing them are over the terrain of the Adirondacks and Greens, but even there they are under 40 percent. A few showers are possible again tomorrow afternoon, but the probabilities of seeing them are even less than today. The surface high will cause another night of ideal radiational cooling tonight. With less cloud cover than currently out there, patchy fog will be more widespread in the favored valleys. && .SHORT TERM /WEDNESDAY NIGHT THROUGH THURSDAY/... As of 232 AM EDT Tuesday...A deep trough will approach the region on Thursday, increasing shower chances and bringing gusty winds. The initial front currently looks to enter northern New York sometime Thursday afternoon and reach Vermont sometime in the evening or overnight. It will likely bring a round of steady precipitation, with some embedded convective elements possible. However, weak instability should prevent much of a severe threat. An associated southerly low level jet will bring strong winds late Wednesday night through Thursday. Channeling in the Champlain Valley and downsloping in the far northern Adirondacks will enhance the winds there, and gusts to 30 mph are expected, though they could be locally higher in the most favored locations. && .LONG TERM /THURSDAY NIGHT THROUGH MONDAY/... As of 232 AM EDT Tuesday...Still expecting some gusty winds Thursday night ahead of surface boundary which will bring showers with possible thunderstorms to our area. As a series of boundaries move across the region Friday into next weekend, additional threat for showers are likely, especially across the higher terrain. Temperatures will slowly trend back below normal by late weekend into early next week with a drying trend expected by early next week. Highs generally in the upper 60s to mid 70s for Friday and Saturday, before cooling back into the upper 50s to mid 60s by Sunday/Monday, while lows are in the upper 40s to near 60s to start, but cool back into the mid 30s to upper 40s by early next week. && .AVIATION /07Z TUESDAY THROUGH SATURDAY/... Fog has already formed at MPV, and additional fog formation is possible at both SLK and EFK as some clearing works it`s way into the region. Winds shift southerly in the morning becoming westerly through the afternoon with an upper low circulation dragging across the region. Lapse rates and daytime surface instability will support some showers, especially over higher terrain of the Adirondacks. There will be about a 30% chance of a shower in the 18-24Z time frame for SLK/MSS/EFK with 15-20% at BTV/PBG/MPV. Outlook... Wednesday: VFR. NO SIG WX. Wednesday Night: VFR. NO SIG WX. Thursday: VFR. Chance SHRA. Thursday Night: Mainly VFR, with local MVFR possible. Likely SHRA, Slight chance TSRA. Friday: Mainly VFR, with local IFR possible. Likely SHRA, Slight chance TSRA. Friday Night: Mainly VFR, with local MVFR possible. Chance SHRA. Saturday: Mainly VFR, with areas MVFR possible. Chance SHRA, Slight chance TSRA. && .BTV WATCHES/WARNINGS/ADVISORIES... VT...None. NY...None. && $$ SYNOPSIS...Myskowski NEAR TERM...Myskowski SHORT TERM...Myskowski LONG TERM...Neiles AVIATION...Neiles