351 FXUS61 KALY 080607 AFDALYAREA FORECAST DISCUSSION National Weather Service Albany NY 207 AM EDT Mon Sep 8 2025
.SYNOPSIS... High pressure becoming locked in across the region will ensure a prolonged period of dry conditions, spanning at least the next six days. Temperature trends resemble a roller coaster this week, starting with below normal values through Tuesday night, a moderation to near or just above normal Wednesday and Thursday, and a return to below normal through Friday night before near normal conditions return for the weekend.
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.DISCUSSION... Key Messages:
- Patchy frost likely in the Southwest Adirondacks tonight.
Discussion: A large surface anticyclone continues to expand north and east from the Midwest/Ohio Valley as broad, upper-level troughing deamplifies and begins to depart. Strong subsidence in association with this high will maintain dry conditions for much of the work week, despite a couple of shortwave disturbances pulsing through the mean flow aloft. In fact, our next solid chance for precipitation doesn`t present itself until late Saturday night into Sunday. That being said, despite there being general agreement in the long range guidance in the development and southeast track of a cutoff low from Ontario that will ultimately bring these rain chances, there still remains a fair amount of timing uncertainty at this time. Therefore, the slight chance to chance PoPs forecast by the 01z NBM Saturday night through Sunday were unchanged.
Temperatures will be rather variable in reference to climatological normals over the next seven days. The lingering cool temperatures aloft from the cold front that passed through the region Saturday will maintain below normal temperatures today and tonight. Highs will therefore be in the low 60s to low 70s, though isolated pockets of mid 70s are certainly not out of the realm of possibility given the anticipation for deep mixing and plenty of unobstructed sunshine. Low temperatures tonight, given favorable radiational cooling conditions, will drop widely to the 30s and 40s. Patchy frost can therefore be expected in the Southwest Adirondacks where a Frost Advisory will go into affect at 2 AM tonight. Highs Tuesday and Wednesday will achieve closer-to-normal values with mid/upper 60s to upper 70s, though lows Tuesday will remain below normal at values of upper 30s to mid 40s. Wednesday night will be a bit more mild in comparison with primarily 40s to low 50s. Temperatures Thursday will be similar to those of Wednesday, though a weak cold front looking to move through the region Thursday night will see temperatures drop back to below normal levels by Friday. Highs will be in the mid/upper 60s to low/mid 70s with lows in the 40s. By the weekend, temperatures will once again moderate back towards normal with highs Saturday and Sunday in the mid/upper 60s to mid/upper 70s and lows in the mid/upper 40s to low 50s both nights.
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.AVIATION /06Z MONDAY THROUGH FRIDAY/... Through 06z Tuesday...High pressure building in across the region will keep dry conditions in place with clear skies. Mainly VFR conditions will occur through the 24 hour TAF period. However occasional fog/mist with MVFR/IFR conditions expected at KGFL from around 08z-11z. There should be enough of a breeze at KPSF to prevent fog, although if winds go calm for a time brief periods of MVFR vsby may occur there. Any fog will dissipate by 11z-12z with just some fair weather cumulus clouds around today. Winds will initially be northwest less than 5 kt, increasing to 5-8 kt by this afternoon.
Outlook...
Tuesday Night: No Operational Impact. NO SIG WX. Wednesday: No Operational Impact. NO SIG WX. Wednesday Night: No Operational Impact. NO SIG WX. Thursday: No Operational Impact. NO SIG WX. Thursday Night: No Operational Impact. NO SIG WX. Friday: No Operational Impact. NO SIG WX. Friday Night: No Operational Impact. NO SIG WX. Saturday: No Operational Impact. NO SIG WX.
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.ALY WATCHES/WARNINGS/ADVISORIES... CT...None. NY...Frost Advisory from 2 AM to 8 AM EDT Tuesday for NYZ032-033. MA...None. VT...None.
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SYNOPSIS...Gant DISCUSSION...Gant AVIATION...JPV
NWS ALY Office Area Forecast Discussion