Area Forecast Discussion
Issued by NWS Burlington, VT

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228 FXUS61 KBTV 090555 AFDBTV Area Forecast Discussion National Weather Service Burlington VT 155 AM EDT Thu May 9 2024 .SYNOPSIS... Scattered showers with some embedded thunderstorms will continue this afternoon. Some small hail and gusty winds are possible within thunderstorms. The thunderstorm threat will come to an end this evening, and the remainder of the night will be damp and cloudy with some drizzle. The rest of the week into early next week will see at least chances for showers continue each day as we enter into a wet and unsettled weather pattern. && .NEAR TERM /THROUGH FRIDAY/...
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As of 155 AM EDT Thursday...Forecast is in good shape early this morning. Boosted sky cover for most areas to overcast with only localized clearing in eastern Windsor County and southern St. Lawrence County at this time and little improvement through the overnight. Also added some higher gusts of 20-25 MPH in the Champlain Valley and much of central Vermont with breezy north/northwest winds likely continuing in the cold air advection pattern. These winds look to only gradually diminish towards daybreak. Previous discussion...A cold front will move south through the area tonight, though impacts will be restricted to just some low clouds and drizzle. Forecast soundings suggest a layer of low- level moisture will become trapped under a mid-level inversion, resulting in a dreary night with low stratus, mist, and drizzle. Additional shortwave energy moving through Thursday will keep low clouds around and have maintained a few light showers in the forecast. Some areas may see low clouds erode during the afternoon, leading to a few peaks of sunshine, but overall looking at predominantly mostly cloudy skies. Very little change in the overall pattern going into Thursday night, so will again expect lowering stratus clouds through the night especially in higher terrain. Low temperatures will be in the 40s both tonight and Thursday night, and high temperatures Thursday will be in the 50s to around 60.
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&& .SHORT TERM /FRIDAY NIGHT/... As of 348 PM EDT Wednesday...The overall trend noted by the previous discussion towards drier conditions for Friday continued with the 12Z NWP guidance with shortwave energy dropping south of the region from the Ohio Valley through the Mid-Atlantic states. The northeast will remain under a broad upper level trough though so some showers can`t be ruled out, especially south. Dry conditions generally rule Friday night in between shortwave troughs, but chances for showers return on Saturday as a deepening trough over the Great Lakes will shift the flow to southwesterly across the region. The highest chances for showers will be across northern New York, with PoPs lower across Vermont. Temperatures will run near normal through the period with highs slightly cooler in the mid 50s to low 60s, and lows in the upper 30s to mid 40s. && .LONG TERM /SATURDAY THROUGH WEDNESDAY/... As of 348 PM EDT Wednesday...More unsettled conditions look to return for the latter half of the weekend as the aforementioned upper trough shifts offshore and potentially deepens and closes off. The GFS is the most aggressive solution while the ECMWF and GDPS are lesser so, offering lower chances for precipitation. Being it`s Mothers Day we`ll offer a little hope for drier weather and lean towards consensus and blended guidance with PoPs 40-50% across the region through Monday. Heading into mid- week conditions continue to remain unsettled as the upper flow trends northwesterly with several shortwave passages possible. Not looking at any impactful rain or thunderstorms, but the chance for showers exists each day. && .AVIATION /06Z THURSDAY THROUGH MONDAY/...
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Through 06Z Friday...Mix of MVFR and IFR ceilings persist through the next 4 to 8 hours or so in northwest flow in the wake of a cold front, with VFR conditions expected thereafter. Somewhat uncertain flight categories with cloud bases near 1000 feet at several sites including RUT, BTV, SLK, EFK, and MPV, with probabilities of IFR conditions generally decreasing only slightly with time, and faster between 09Z and 12Z as low clouds mix out after sunrise. NW winds will mostly be 10 knots or less, with some gusts at PBG and BTV near 20 knots through about 10Z, and trend north/northeasterly after 18Z. Outlook... Friday: VFR. Chance SHRA. Friday Night: VFR. Chance SHRA. Saturday: VFR. Chance SHRA. Saturday Night: VFR. Chance SHRA. Sunday: Mainly VFR, with areas MVFR possible. Chance SHRA. Sunday Night: Mainly VFR, with local MVFR possible. NO SIG WX. Monday: Mainly VFR, with local MVFR possible. Chance SHRA.
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&& .BTV WATCHES/WARNINGS/ADVISORIES... VT...None. NY...None. && $$ SYNOPSIS...Duell NEAR TERM...Duell/Kutikoff SHORT TERM...Lahiff LONG TERM...Lahiff AVIATION...Kutikoff/Neiles