914 FXUS61 KALY 111041 AFDALYAREA FORECAST DISCUSSION National Weather Service Albany NY 641 AM EDT Thu Sep 11 2025
.SYNOPSIS... A weak cold front will move through later today into tonight, bringing just some periods of clouds. Slightly cooler temperatures in store for Friday with dry conditions persisting through Saturday. The next chance of showers arrives Saturday night associated with an upper level disturbance. This system will move through Sunday into early Monday, with mainly scattered showers and a few thunderstorms.
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.SHORT TERM /THROUGH SATURDAY/... Surface ridge in place across the area this morning, resulting in cool temperatures with patchy valley fog in typically favored spots. Otherwise, plenty of sunshine will give way to periods of afternoon clouds developing across northern areas along a weak cold front pushing south. Prior to the front arriving, temperatures should warm into the mid/upper 70s in lower elevations this afternoon.
Occasional cloud cover will follow the front as it progresses south across the rest of the area this evening into tonight. In its wake, high pressure will build in from Quebec providing continued dry conditions and mostly sunny skies Friday. There could be some patchy valley fog again early Fri morning, but likely limited to favored sheltered areas. Temperatures will cool to slightly below normal levels for lows tonight and highs Fri.
Surface ridging will result in continued dry conditions Fri night through Sat. With mostly clear skies, lows will be slightly below normal again (lower 40s to lower 50s). Highs Sat will rebound to mid/upper 70s in valleys.
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.LONG TERM /SATURDAY NIGHT THROUGH WEDNESDAY/... Key Message:
- Scattered showers Saturday night through Monday, with a few thunderstorms on Sunday, followed by another drying trend Tuesday into Wednesday.
Discussion:
Upper level trough expected to dig across the Northeast CONUS Sat night through Mon. Latest trends in the guidance indicating a more open/progressive trough. This pattern should still result in at least widely scattered showers, but did lower PoPs slightly from NBM due to the persistent dry pattern we`ve been in along with the recent trends in the model guidance. The result is generally chance PoP during this time. Will continue to mention some thunderstorms on Sun as this would be when the core of the coldest air aloft would likely be overhead. The upper low/trough should shift south of the area on Mon, with gradually decreasing PoPs. Temperatures look to be near normal through Mon.
Dry weather then expected to return Tue into Wed, as high pressure builds back into the region. Most sources of guidance indicating a cut-off low developing near the mid Atlantic region, but is anticipated to remain south of our area at this time. Will need to monitor trends though. For now, will mention tranquil weather with temperatures warming back to above normal levels.
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.AVIATION /12Z THURSDAY THROUGH MONDAY/... We start the TAF period with a variety of conditions due to patchy fog decreasing as daylight increases. MVFR/IFR/LIFR conditions due to patchy fog at KGFL and KPSF should begin to improve between 12z and 14z. VFR conditions persist for all TAF sites between 12z and 14z through 00z. Calm winds this morning increase to northwest to northerly winds between 5 and 10 knots this afternoon.
Outlook...
Friday Night: No Operational Impact. NO SIG WX. Saturday: No Operational Impact. NO SIG WX. Saturday Night: Moderate Operational Impact. Chance of SHRA. Sunday: Moderate Operational Impact. Chance of SHRA...TSRA. Sunday Night: Moderate Operational Impact. Chance of SHRA. Monday: Moderate Operational Impact. Chance of SHRA.
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.ALY WATCHES/WARNINGS/ADVISORIES... CT...None. NY...None. MA...None. VT...None.
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SYNOPSIS...JPV SHORT TERM...JPV LONG TERM...JPV AVIATION...Webb
NWS ALY Office Area Forecast Discussion