073 FXUS61 KBTV 111112 AFDBTVArea Forecast Discussion National Weather Service Burlington VT 712 AM EDT Thu Sep 11 2025
.SYNOPSIS... A dry frontal boundary will result in a breezy, but generally pleasant day. An upper level disturbance will bring some cloud cover across the region Saturday, but the better chances for precipitation will be on Sunday. Even then, rain appears likely to be hit or miss and unlikely to bring needed rain. Dry conditions will prevail for the remainder of the period with warming temperatures for the middle of next week.
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.NEAR TERM /THROUGH TONIGHT/... As of 159 AM EDT Thursday...A dry frontal boundary will take place today. A shower may spark near the Adirondacks towards evening, but any accumulation would be minor. Gradients with the front will support some breezy conditions, but are not substantial enough to have too much beyond 20 mph. Although there`s not much rain with the front, it should be enough to keep dewpoints up as well that should keep relative humidity values above 40 percent. Overall, it should be very pleasant as temperatures climb from the 40s (locally upper 30s in cold hollows) into the 70s.
The passage of this front will reinforce cool conditions, and dry air will filter in overnight. With high pressure building in, we should manage strong radiational cooling. Anticipate widespread 40s, with mid 30s to around 40 in the Adirondacks and the Northeast Kingdom extending down into parts of central Vermont. Any frost looks localized in the Adirondacks, but a bit more widespread in the Northeast Kingdom.
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.SHORT TERM /FRIDAY THROUGH SATURDAY/... As of 159 AM EDT Thursday...Cool high pressure overhead on Friday will result in seasonably cool conditions in the mid 60s to lower 70s. With little in the way of clouds or winds, it should be gorgeous. Overnight, a sharp upper level trough will dig through the region. Initially, this will increase cloud cover, but dry surface conditions remain with high pressure. There could be virga with returns viewable on radar, but there should not be anything that reaches the ground. A warm night with 40s to about 50 will unfold with Saturday being quite a bit cloudier.
On Saturday, the vort max will begin to slide east, but a surface trough will settle in. There should be enough lingering forcing to produce a few showers once marginally conducive moisture is present by midday. Anything that might fall Saturday afternoon will likely produce little.
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.LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/... As of 159 AM EDT Thursday...Trends in the 00Z NWP guidance are towards an open trough passage Saturday night through Sunday as compared to previous runs which closed the system off. This in turn, combined with very dry antecedent conditions leads the forecast to point towards lower chances for precipitation for the period, but given some moisture, northwest flow, and a strong mid-level shortwave, there`s still a good chance for some scattered showers so will maintain chance PoPs for the period. After that for next week, we`re back under surface high pressure and a building upper ridge, so drought conditions will continue. Temps continue below normal through the weekend with highs in the upper 60s to low 70s and lows 40s/50s, but trend warmer to normal or slightly above by mid-week with highs solidly in the mid/upper 70s and lows mainly in the 50s.
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.AVIATION /12Z THURSDAY THROUGH MONDAY/... Through 12Z Friday...Outside of periods of LIFR at KSLK/KMPV from 06-12Z Friday, VFR conditions will prevail across the region over the next 24 hours. A dry cold front will bring a SCT-BKN mid-level deck through the area from north to south through the day, becoming SKC again by 00Z. Light winds overnight trend northerly by daybreak and increase through the morning to 8-12kts with some isolated gusts up to 18kts in the afternoon. After 00Z, winds return to nearly calm except locally SE at 7kts at KRUT.
Outlook...
Friday: VFR. NO SIG WX. Friday Night: VFR. NO SIG WX. Saturday: VFR. NO SIG WX. Saturday Night: VFR. Chance SHRA. Sunday: VFR. Chance SHRA. Sunday Night: VFR. Chance SHRA. Monday: VFR. Slight chance SHRA.
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.BTV WATCHES/WARNINGS/ADVISORIES... VT...Frost Advisory from 2 AM to 8 AM EDT Friday for VTZ004. NY...None.
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$$ SYNOPSIS...Haynes NEAR TERM...Haynes SHORT TERM...Haynes LONG TERM...Lahiff AVIATION...Lahiff
NWS BTV Office Area Forecast Discussion