930
FXUS61 KALY 182325
AFDALY

AREA FORECAST DISCUSSION
National Weather Service Albany NY
625 PM EST Tue Nov 18 2025

.UPDATE...
As of 615 PM EST, clouds slow to erode across the SW Adirondacks
extending into the Capital Region and Berkshires, though latest
IR satellite does show decreasing trend from the west. Have
added some cloud coverage in these areas over the next few hours
based on latest satellite imagery. Otherwise, no other changes
at this time.

&&

.SYNOPSIS...
A weak disturbance tracking to our south will bring a chance for
some light snow showers near I-84 late tonight, but otherwise
dry weather is expected through Thursday. Chances for rain
increase again Thursday night and Friday, before dry weather
returns again for the weekend. Generally below normal
temperatures are expected through the next several days, except
on Friday when temperatures will be near normal.

&&

.SHORT TERM /THROUGH THURSDAY NIGHT/...
As of 4:40 PM, broad high pressure stretched from Upper
Mississippi River Valley through the Great Lakes and Mid
Atlantic, with strong surface low pressure across northeast
Quebec. Our area was under mostly cloudy skies with persistent
cyclonic flow from the aforementioned surface low overhead, but
hints of increasing subsidence with the approaching high were
being observed with increasing sunshine across portions of
western New York.

While the incoming high pressure will be the primary influencer of
our weather for the majority of the short term period, will be
keeping a close eye on a clipper system as it tracks across
Pennsylvania into the Mid Atlantic, southwestern New York and
southern New England tonight into Wednesday. Majority of CAMs,
deterministic models and probabilistic guidance keep chances of
precipitation well south of the area, though the latest 12z HRRR
does hint at light accumulating snow (T-2") mainly across the
southernmost portions of Ulster, Dutchess and Litchfield counties.
This is likely due to the model analyzing a stronger system with
more low-level moisture to work with. Confidence in this scenario
evolving is low, though a light dusting to a few tenths of an inch
of snow will be possible before melting off by Wednesday morning.

Otherwise, increasing ridging with the high will promote increasing
sunshine across the area Wednesday, which will lead to more
widespread highs back in the low to mid 40s outside of higher
terrain. Overnight lows Wednesday night will remain cold in the low
to mid 20s outside of higher terrain.

For Thursday, conditions will remain dry with increasing clouds
ahead of an approaching shortwave from the Great Lakes and warm
front from the Ohio River Valley. Highs Thursday will be similar to
Wednesday, though Thursday night lows should rise back into the 30s
in the valleys with increasing southerly flow aloft and at the
surface.

&&

.LONG TERM /FRIDAY THROUGH TUESDAY/...
Warm front will be moving through the region quickly early Friday
morning and afternoon, and will be accompanied by increasing low-
level moisture and isentropic lift. Precipitation chances will begin
to increase from south to north after midnight Friday, though
activity will be more isolated to scattered in coverage with the
warm front and will be focused mainly in the higher elevations of
the Catskills, Berkshires, ADKs and southern Greens. A brief period
of freezing drizzle will be possible initially across the higher
elevations where temperatures will be near freezing, but this will
change over to all rain as temperatures rise through the morning.

The best chance of precipitation with this system will arrive in the
late morning across the Mohawk Valley and western ADKs with the
approach of the cold front and trailing shortwave. Rain is primarily
expected, though some high elevation snow showers will be possible
across the ADKs as the system departs Friday evening and overnight.
Rainfall amounts will be light, with latest probabilistic guidance
and NBM favoring amounts below a quarter of an inch. Friday will be
our warmest day of the week, with PM highs climbing into the mid 40s
to low 50s outside of high terrain (mid to upper 30s).

For Saturday through Monday, high pressure will quickly follow
behind the system with dry conditions favored going into early next
week. Temperatures will cool slightly, but will hover near normal
with highs in the mid to upper 40s and overnight lows in the
20s/30s.

&&

.AVIATION /23Z TUESDAY THROUGH SUNDAY/...
Through 00Z/Thursday, lingering clouds with Cigs 3500-5000 FT
AGL at KALB and KPSF through 02Z/Wed, otherwise mainly VFR
conditions late tonight through Wednesday. However, there is a
very low chance that some patchy/shallow ground fog could
develop around 12Z/Thursday at KALB and KGFL. At KPOU, a weak
upper level disturbance passing south of the region could allow
for a period of clouds, and perhaps some very light snow or
flurries between 09Z-13Z/Wed. Should this occur, some MVFR Vsbys
will be possible.

West to northwest winds 4-8 KT will become light/variable
overnight through Wednesday morning, then west at 4-8 KT
Wednesday afternoon, except variable in direction at KGFL.

Outlook...

Wednesday Night: No Operational Impact. NO SIG WX.
Thursday: No Operational Impact. NO SIG WX.
Thursday Night: Moderate Operational Impact. Chance of SHRA.
Friday: Moderate Operational Impact. Likely SHRA.
Friday Night: Low Operational Impact. Slight Chance of SHRA.
Saturday: No Operational Impact. NO SIG WX.
Saturday Night: Low Operational Impact. Slight Chance of SHRA.
Sunday: Low Operational Impact. Slight Chance of SHRA.

&&

.ALY WATCHES/WARNINGS/ADVISORIES...
CT...None.
NY...None.
MA...None.
VT...None.

&&

$$

UPDATE...24
SYNOPSIS...17/35
SHORT TERM...17
LONG TERM...17
AVIATION...24