Wilkes-Barre, Pennsylvania 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

909
FXUS61 KBGM 140557
AFDBGM

Area Forecast Discussion
National Weather Service Binghamton NY
157 AM EDT Thu May 14 2026

.WHAT HAS CHANGED...
Added in patchy fog for the predawn hours as a clear slot rotates
over the area. This will allow from some modest cooling and
saturation for the fog development. Otherwise, minor tweaks to
chances of precipitation and clouds cover today through Friday. More
clouds and shower chances were added for Sunday, but exact timing
remains uncertain.

&&

.KEY MESSAGES...
1) A slow moving upper level low pressure system will keep our
weather cool and cloudy with a few showers around through Friday
morning.

2) The weekend will feature a substantial warming trend, with a
chance for a few scattered showers Saturday night into Sunday.

3) Very warm to hot conditions overspread the forecast area early
next week. There will be a chance for thunderstorms especially
heading into Tuesday and Wednesday next week.

&&

.DISCUSSION...
KEY MESSAGES 1...

An upper level low will drift east over the forecast area through
the day today. A small mid level dry slot is bringing some partial
clearing early this morning, but this will also allow for patchy fog
formation. From mid morning through the rest of the day skies are
forecast to remain mainly cloudy, with a cool NW wind expected. The
mid level dry slot remains center along the I-81 corridor through
much of the day. Better chances for scattered showers will be across
the western Finger Lakes to Central Southern Tier...as well as the
eastern Catskills. Most of the shower activity will be light today,
in some cases it could be drizzle or sprinkles, especially under the
mid level low over the Finger Lakes region. With 850mb temperatures
hovering around 0C today and plenty of clouds, look for highs to
only reach the upper 40s to 50s in most locations. Some lower 60s
will be possible across the Wyoming Valley, Delaware River Valley
and southern Sullivan County (NY).

Tonight the 700mb low drops south of the area and additional
moisture wraps into the region from the north-northeast overnight.
This will initiate some new, steadier shower activity, especially
across Central NY. Rainfall amount will be light, under a quarter
inch, with just a few hundreths or less from the Twin Tiers south.

By Friday morning the mid/upper level low will be drop southeast away
from Long Island NY. Our area will be on the NW fringes of
influence from this departing low. There will still be some clouds
locked in over the area in the moist low level northwest flow, along
with isolated showers for the morning hours. Eventually some drier
air begins to mix into the atmosphere over the region, which should
equate to partly sunny conditions by afternoon and evening. With
partial sun temperatures should nudge up into the 60s for highs.

KEY MESSAGE 2...

Current guidance brings a transient upper level ridge over the area
on Saturday, as 850mb temperatures rise up to around +10C in the
afternoon. This should lead to a dry, mostly sunny and warm day with
highs in the mid-70s to around 80 expected. For Saturday night into
Sunday a few shortwaves will ride along the zonal westerly flow and
could bring some periods of clouds and showers at times. Most of
Sunday will still likely end up dry, under partly sunny skies. As
850mb temperatures reach +13C, surface readings will also rise,
likely reaching the mid-70s to low 80s (except mid-80s in the
Wyoming Valley)...this is several degrees above average for Mid-May.

KEY MESSAGE 3...

The upper level ridge continues to amplify across the Northeast US
heading into early next week. 850mb temperatures surge to +16C
Monday and +18C on Tuesday, along with thicknesses just above 570dm.
This could support highs well into the 80s and even some lower 90s
for the normally hotter valley locations. Humidity levels remain low
on Monday, but start to increase some by Tuesday, as surface dew
points reach the mid-60s. Will need to keep a close eye on
temperatures and expected heat indices as this is shaping up to be
the first potentially impactful heat event of the season. NWS Heat
Risk is starting to pick up on this signal as well, with well above
climatology temperature readings expected; even at night as lows
only dip into the 60s. The sun is getting strong this time of
year, and this will act to exacerbate heat conditions when/if it
is sunny during the midday and afternoon hours. Ensembles seem
pretty locked in on temperatures reaching at least near 90 or
slightly above in our valley locations at this time (50-60%
probability); but a caveat would be if more clouds and or pop
up showers end up being around then that could certainly keep
readings down a bit.

Monday should be dry and mostly sunny, but a chance for a few
thunderstorms returns to the forecast Tuesday afternoon and
evening. Early indications are that a frontal boundary will approach
and move through sometime next Wednesday. This will bring
temperatures down a few degrees (depending heavily on exact frontal
timing) and also increase chances for showers and thunderstorms into
the high chance to low end likely range.

&&

.AVIATION /06Z THURSDAY THROUGH MONDAY/...
Very tricky aviation forecast, at least for this morning. Post-
frontal low stratus continues to rotate around the area. This
has resulted in mainly MVFR ceilings. However, in any brief
pockets of clearing, fog/mist has briefly settled in, but then
quickly dissipates as soon as clouds move back in. Long story
short, expecting most restrictions this morning to be MVFR to
Fuel Alternate from low ceilings, but cannot rule out brief IFR
visby restrictions if fog manages to sneak back in. That being
said, confidence in seeing IFR fog at KELM has significantly
decreased due to expanding cloud cover on satellite and
therefore IFR restrictions were removed from the TAF there.

MVFR ceilings are expected to persist for most of the day, with
KAVP likely being the exception (where VFR conditions are likely
this afternoon and perhaps has early as the mid-morning).
Ceilings lower once again this evening with widespread Fuel
Alternate ceilings and likely IFR at all terminals except for
KAVP.

Outlook:

Friday...Gradual improvement back to VFR by the afternoon.

Friday night through Monday...Mainly VFR; small chance for an
isolated shower or thunderstorm Saturday night into Sunday.

&&

.BGM WATCHES/WARNINGS/ADVISORIES...
PA...None.
NY...None.

&&

$$

DISCUSSION...MJM
AVIATION...BJG