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Latest PA Weather Summary:

406
AWUS81 KCTP 052114
RWSCTP
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-
049>053-056>059-063>066-061115-

Regional Weather Summary
National Weather Service State College PA
414 PM EST Fri Dec 5 2025

A split in the jet stream will keep storm systems to the north and
south of the Keystone state this weekend. The highest chance of
precipitation will be later on the day on Sunday across the north
and west. Temperatures will remain colder than normal this
weekend, for the first full weekend in December.

Lows tonight will range from the teens across the north and west,
to the lower to mid 20s across the south. Highs on Saturday will
range from the 30s across the north and west, to the lower 40s
across the southeast. Lows Saturday night will be in the 20s.
Highs on Sunday will range from the upper 20s and lower 30s across
the north, to the upper 30s across the south.

Precipitation on Sunday will work into the far northwest by late
Sunday morning and spread into northern and western sections of
the Keystone state by late afternoon. Snowfall accumulation by
late Sunday afternoon will be mainly a dusting across the north
and west, to perhaps an inch near Lake Erie.

Light snow is likely across the western Alleghenies Sunday night
with a few inches most likely in the northwest part of the
Keystone state by Monday morning. Monday night into Tuesday
morning will be very cold with low temperatures in the single
digits and lower teens.

A reinforcing cold weather pattern with quick moving disturbances
will bring below normal temperatures and a couple opportunities
for snow next Tuesday through Friday.

$$

Martin

Latest Forecaster's Discussion:

988
FXUS61 KCTP 052000
AFDCTP

Area Forecast Discussion
National Weather Service State College PA
300 PM EST Fri Dec 5 2025

.SYNOPSIS...
* Low, non-precipitating clouds will blanket the region through
tonight leading to much higher, but still cold overnight lows
tonight
* Light snow accumulation likely over the western and central
Alleghenies later Sunday through Sunday night
* Reinforcing cold weather pattern and clippers provide
additional opportunities for snow next Tuesday-Friday

&&

.NEAR TERM /UNTIL 6 AM SATURDAY MORNING/...
North south axis of well-defined llvl streamline convergence is
in place across central PA and has resulted in quick nwd
advection of an extensive albeit shallow, stratus layer that
now covers practically the entire CWA (except for the NW corner
of Warren County) this mid afternoon hour.

Sunshine through 14-15Z today across the north (where single
digits temps above and below zero were recorded) allowed for a
quick rebound in temps into the teens to low 20s, while the temp
change was much less across the south where extensive cloud
cover was found for much of the night and all day today.

Some additional lowering of this cloud deck will occur through
the rest of this afternoon and tonight, that will eventually
intersect the highest ridges overnight. these shallow clouds may
be capable of producing some patchy freezing drizzle or snizzle
later today and tonight on the favored upslope portions of the
ridges - something to monitor going forward.

Temps across the Southern half of the state were mainly between
24-27 deg F. Readings in all locations will still rise about
another few to several deg with weak llvl warm advection from
the south.

The clouds will also trim the temp drop with mins fcst in the
upper teens (north) to low and mid 20s (south) - which will be
much warmer than this morning.

&&

.SHORT TERM /6 AM SATURDAY MORNING THROUGH SUNDAY NIGHT/...
Some fleeting sunshine possible Saturday, but dont bank on it in
most places, as the exit of the aforementioned widespread
stratus deck (resulting from development of a mean swrly llvl
flow) is quickly replaced by a dual layer of higher based
stratocu and thick layer of mid and high clouds.

The passage of a weak sfc trough will add a Southwesterly breeze
on Saturday, helping to push max temps closer to early December
climo with highs +5-10F warmer day/day in most locations.

Highs Sat afternoon will range from 30-35 across the Northern
Mtns to the low 40s in the Southern Valleys.

Lake effect snow trajectories marginally improve by Saturday
night over the NW mtns (generally Northern Warren and Mckean
Ctys) before lowering inversion heights and backing low level
winds keep light snow accums mainly confined to the I90
corridor.

Split/northern stream trough swings through on Sunday and likely
brings some light (lake/terrain enhanced) snow primarily to the
western and northern Alleghenies. NBM snow accum favors sub-
advisory level accumulation for most areas, with the best odds
for 2-3" across the NW mtns along and north of US-6.

&&

.LONG TERM /MONDAY THROUGH FRIDAY/...
A cold but quiet start to next week will be followed by a
reinforcing cold weather pattern as we see the exit to the east
of the strong and persistent Swrly Subtropical Jet from the
Baja area to the Carolina Coast.

The large scale upper flow will become more amplified for the
middle to late week period with a persistent trough in the east
and ridging over the Rockies and Western States.

Several clippers migrating through and reinforcing the Eastern
U.S. trough will bring at least 2-3 opportunities for snow (and
possibly a little mixed precip across the south).

The next, best chance for wintry precip area-wide is
Wednesday/Wednesday night, as a vigorous clipper drops southeast
across the region. Model consensus points toward low-end
advisory category snow (3-4 inches) possible across the Nrn and
Western Mtns with an inch or so of accum in the Central Ridge
and Valley region associated with the several hour period of
warm advection snow in advance of the upper shortwave.

The second noteworthy precip event for next week will come
Friday as a similar shortwave (but with a much more southern
track) spreads some snow over primarily southern PA as a
northerly llvl flow with 850 mb temps in the -8 to -12C range
will ensure deep cold air in place for all snow.

Confidence remains high in below normal temperatures; Monday
night could be another frigid period with lows -5F to +15F by
daybreak Tuesday.

&&

.AVIATION /19Z FRIDAY THROUGH WEDNESDAY/...
Widespread MVFR to low end VFR stratus covers all of the
Central PA the mid afternoon hour. Ceilings will lower to
IFR across most of central PA during the evening and overnight.

Once IFR ceilings develop, they will likely persist at BFD,
JST, and LNS through 12Z Sat. The other sites may see ceilings
rise to MVFR before sunrise Sat.

Some patchy light freezing drizzle is possible late today
through early Sat where cloud bases lower to within 500 feet or
so of the ground (which will occur mainly on the ridge tops).

Outlook...
Sat...Restrictions possible, chance of snow showers in the NW

Sun...A compact but more amplified upper level trough with a preceding
low level south to southwesterly wind max will likely bring a 4
to 6 hour period of mainly light snow with IFR vsbys and MVFR to
IFR CIGS (targeting mainly Central and Northern PA) late
Sunday/Sunday night.

Mon...Mainly VFR

Tue...Snow/restrictions possible mostly in the second half of
the day

&&

.CLIMATE...
Cold temperatures in the wake of the Arctic Front brought
frigid temperatures to central Pennsylvania, the coldest of
this winter thus far. Multiple locations across the area
challenged (or broke) record low temperatures for December 5th:

Location|Record
Harrisburg | 12 (1926)
Williamsport | 8 (1926)
Bradford | 0 (2007)**
Altoona | 13 (1966)*

** record broken
* record tied

&&

.CTP WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

SYNOPSIS...Lambert/Steinbugl
NEAR TERM...Lambert/Steinbugl
SHORT TERM...Lambert/Steinbugl/Banghoff
LONG TERM...Lambert/Steinbugl/Banghoff
AVIATION...Lambert/Bauco
CLIMATE...NPB

Latest Public Information Statement:

119
NOUS41 KCTP 051521
PNSCTP
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053-056>059-
063>066-060321-

Public Information Statement
National Weather Service State College PA
1021 AM EST Fri Dec 5 2025

...LOW TEMPERATURE REPORTS (10F AND BELOW)...

Location Temp Time/Date Provider

...Pennsylvania...

...Blair County...
2 NNW Altoona 8 F 0525 AM 12/05 AWS
Penn State Altoona 8 F 0545 AM 12/05 MESOWEST
WILLIAMSBURG 10 F 0503 AM 12/05 CWOP
ALTOONA 10 F 0527 AM 12/05 CWOP
Altoona 10 F 0630 AM 12/05 CWOP

...Cambria County...
MINERAL POINT 6 F 0531 AM 12/05 CWOP
Ebensburg 8 F 1221 AM 12/05 CWOP
Johnstown Airport 8 F 0654 AM 12/05 ASOS
1 E Cresson 10 F 0510 AM 12/05 PADOT

...Cameron County...
Emporium 2 F 0805 AM 12/05 DAVIS
Doll Hill 3 F 0550 AM 12/05 RAWS
Stevenson Dam 6 F 0700 AM 12/05 COOP

...Centre County...
PORT MATILDA 1 F 0639 AM 12/05 CWOP
Spring Mills 3 F 0703 AM 12/05 CWOP
Bellefonte 3 F 0715 AM 12/05 CWOP
1.2 E Rock Springs (SCAN) 4 F 0400 AM 12/05 MESOWEST
Bald Eagle State Park 4 F 0620 AM 12/05 MESOWEST
Philipsburg 4 F 0700 AM 12/05 COOP
Centre Hall 4 F 0705 AM 12/05 DAVIS
South Philipsburg 4 F 0739 AM 12/05 CWOP
Rock Springs 5 F 0430 AM 12/05 MESOWEST
Snow Shoe 5 F 0505 AM 12/05 PADOT
Garden Hollow 5 F 0608 AM 12/05 RAWS
Stormstown 5 F 0715 AM 12/05 CWOP
2 SW State College 6 F 0435 AM 12/05 CWOP
1 NE Port Matilda 6 F 0625 AM 12/05 PADOT
Stormstown 6 F 0645 AM 12/05 CWOP
PSU UPark PEMN 6 F 0655 AM 12/05 MESOWEST
Pleasant Gap 7 F 0700 AM 12/05 Trained Spotter
Zion 7 F 0413 AM 12/05 CWOP
Pennsylvania Furnace 7 F 0628 AM 12/05 CWOP
Lemont 7 F 0643 AM 12/05 CWOP
3 NNW Milesburg 7 F 0725 AM 12/05 PADOT
Stormstown 7 F 0726 AM 12/05 CWOP
State College 8 F 0630 AM 12/05 CWOP
State College 8 F 0645 AM 12/05 DAVIS
Bear Knob 8 F 0649 AM 12/05 RAWS
State College 9 F 0648 AM 12/05 CWOP
University Park Airport 10 F 0553 AM 12/05 AWOS
AccuWeather HQ 10 F 0720 AM 12/05 CWOP
2.2 SW Beech Creek 10 F 0745 AM 12/05 HADS

...Clearfield County...
Clearfield Airport 0 F 0654 AM 12/05 ASOS
Psu Dubois 2 F 0605 AM 12/05 MESOWEST
1 SSE S.b. Elliot State Park 4 F 0350 AM 12/05 PADOT
2 ENE Clearfield 4 F 0535 AM 12/05 PADOT
Kennedy Preserve 5 F 0408 AM 12/05 RAWS
Dubois 5 F 0430 AM 12/05 CWOP
Clearfield 6 F 0735 AM 12/05 DAVIS
6 NNE Philipsburg 7 F 0725 AM 12/05 PADOT
ROCKTON 7 F 0751 AM 12/05 CWOP

...Clinton County...
Carroll 3 F 0325 AM 12/05 PADOT
3 NE Mccall Dam State Park 4 F 0450 AM 12/05 PADOT
Coffin Rock 5 F 0716 AM 12/05 RAWS
Renovo 8 F 0700 AM 12/05 COOP
Keystone Central School Dist 8 F 0835 AM 12/05 MESOWEST
Alvin Bush Dam 8 F 0845 AM 12/05 COOP
Clinton County 9 F 0745 AM 12/05 MESOWEST
Lock Haven 9 F 0800 AM 12/05 DAVIS

...Columbia County...
Stillwater 7 F 0823 AM 12/05 CWOP
BLOOMSBURG 8 F 0445 AM 12/05 CWOP
BERWICK 8 F 0744 AM 12/05 CWOP
Bloomsburg 8 F 0745 AM 12/05 CWOP
Bloomsburg 9 F 0635 AM 12/05 MESOWEST
Berwick 9 F 0755 AM 12/05 AWS
2 NE Shumans 10 F 0705 AM 12/05 PADOT

...Elk County...
Kersey -2 F 0549 AM 12/05 CWOP
Saint Marys Area High School -1 F 0600 AM 12/05 MESOWEST
Saint Marys 0 F 0815 AM 12/05 CWOP
Saint Marys 1 F 0445 AM 12/05 CWOP
Ridgway 2 F 0500 AM 12/05 AWS
Ridgway 2 F 0700 AM 12/05 COOP
St Marys 5 F 0515 AM 12/05 AWOS

...Huntingdon County...
Petersburg 6 F 0649 AM 12/05 DAVIS
Petersburg 9 F 0555 AM 12/05 DAVIS
Shavers Creek WxSTEM 10 F 0710 AM 12/05 MESOWEST

...Juniata County...
Lemont 9 F 0705 AM 12/05 DAVIS

...Lycoming County...
Jersey Shore 3 F 0615 AM 12/05 CWOP
Cedar Run 7 F 0600 AM 12/05 HADS
1 NE Hughesville 8 F 0600 AM 12/05 Public
WILLIAMSPOPRT 8 F 0650 AM 12/05 CWOP
WILLIAMSPORT 8 F 0743 AM 12/05 CWOP
Montgomery 8 F 0745 AM 12/05 CWOP
MUNCY 9 F 0735 AM 12/05 CWOP
Jersey Shore 9 F 0739 AM 12/05 CWOP
Muncy 9 F 0750 AM 12/05 AWS
Williamsport Airport 10 F 0654 AM 12/05 ASOS

...McKean County...
Bradford 5SW -12 F 0800 AM 12/05 COOP
Bradford Airport -8 F 0653 AM 12/05 ASOS
Smethport -8 F 0800 AM 12/05 CWOP
1 WNW Port Allegany -7 F 0745 AM 12/05 Public
Smethport -7 F 0830 AM 12/05 CWOP
Port Allegany 0 F 0600 AM 12/05 COOP
2 WSW Mount Jewett 3 F 0350 AM 12/05 PADOT
Kane 4 F 0245 AM 12/05 AWS

...Mifflin County...
Seven Mountains 10 F 0505 AM 12/05 PADOT

...Northumberland County...
2.6 N Mount Carmel 3 F 0749 AM 12/05 HADS
Knoebels Grove 5 F 0800 AM 12/05 AWS
Elysburg 8 F 0635 AM 12/05 CWOP
Milton 8 F 0712 AM 12/05 CWOP
Milton 8 F 0810 AM 12/05 AWS
Wolf Pond 9 F 0608 AM 12/05 RAWS
0.6 SW Sunbury 9 F 0700 AM 12/05 COOP
SUNBURY 9 F 0735 AM 12/05 CWOP
1 NE Kulpmont 10 F 0510 AM 12/05 PADOT

...Potter County...
4 NE Denton Hill State Park -7 F 0744 AM 12/05 Trained Spotter
Ulysses -3 F 0815 AM 12/05 DAVIS
3 W Denton Hill State Park 1 F 0205 AM 12/05 PADOT
Cherry Springs State Park 2 F 0240 AM 12/05 MESOWEST
Germania 3 F 0646 AM 12/05 CWOP

...Schuylkill County...
Nuremberg 2 F 0805 AM 12/05 DAVIS
1.4 N Mahanoy City 4 F 0730 AM 12/05 COOP
Bears Head 5 F 0708 AM 12/05 RAWS
Frackville 5 F 0741 AM 12/05 CWOP
5 N Tuscarora 6 F 0440 AM 12/05 PADOT
Valley View 8 F 0509 AM 12/05 CWOP
New Ringgold 8 F 0735 AM 12/05 CWOP
POTTSVILLE 9 F 0315 AM 12/05 CWOP
3.8 E Urban (SCAN) 10 F 0500 AM 12/05 MESOWEST
2 N Tremont 10 F 0740 AM 12/05 PADOT
Joe Zerbey Airport 10 F 0755 AM 12/05 AWOS

...Snyder County...
Selinsgrove 8 F 0653 AM 12/05 ASOS

...Somerset County...
HOLLSOPPLE 4 F 1059 PM 12/04 CWOP
HOLLSOPLE 7 F 1110 PM 12/04 CWOP
Ogletown 8 F 1050 PM 12/04 PADOT
CENTRAL CITY 8 F 1056 PM 12/04 CWOP
Claysville 9 F 0115 AM 12/05 CWOP
SOMERSET 9 F 0137 AM 12/05 CWOP
Laurel Summit 9 F 0600 AM 12/05 COOP
Somerset Airport 10 F 1055 PM 12/04 AWOS
ROCKWOOD 10 F 1215 AM 12/05 CWOP
3 NNE Seven Springs 10 F 0140 AM 12/05 PADOT
Somerset 10 F 0200 AM 12/05 CWOP

...Sullivan County...
LOPEZ -6 F 0749 AM 12/05 CWOP
Dushore -4 F 0430 AM 12/05 Trained Spotter
3 E Shunk -3 F 0700 AM 12/05 Trained Spotter
3 NE Laporte -2 F 0750 AM 12/05 PADOT
Dushore 1 F 0535 AM 12/05 DAVIS
DUSHORE 1 F 0605 AM 12/05 CWOP
Dushore 1 F 0630 AM 12/05 CWOP
Hillsgrove 2 F 0625 AM 12/05 DAVIS
Laporte 3 F 0541 AM 12/05 COOP
3.4 E Muncy Valley 4 F 0815 AM 12/05 HADS
Sullivan County School Distr 6 F 0705 AM 12/05 MESOWEST
Eagles Mere 6 F 0745 AM 12/05 DAVIS

...Tioga County...
Tioga 2 -3 F 0750 AM 12/05 MESOWEST
1.3 NE Leonard Harrison SP -1 F 0700 AM 12/05 COOP
Wellsboro -1 F 0735 AM 12/05 CWOP
Tioga 0 F 0745 AM 12/05 MESOWEST
Westfield 0 F 0745 AM 12/05 CWOP
Old Mountain 1 F 0316 AM 12/05 RAWS
0.8 W Tioga 3 F 0700 AM 12/05 HADS
Wellsboro 3 F 0700 AM 12/05 CWOP
5 SW Blossburg 3 F 0740 AM 12/05 PADOT
Tioga Junction 3 F 0825 AM 12/05 DAVIS
Liberty 4 F 0400 AM 12/05 CWOP
Westfield 4 F 0645 AM 12/05 CWOP
Cowanesque Dam 4 F 0700 AM 12/05 COOP
Morris 5 F 0730 AM 12/05 CWOP
Wellsboro Airport 5 F 0735 AM 12/05 AWOS
Mansfield 6 F 0730 AM 12/05 CWOP
Tioga 6 F 0800 AM 12/05 HADS
1.5 SW Lawrenceville 6 F 0845 AM 12/05 HADS

...Union County...
LEWISBURG 6 F 0704 AM 12/05 CWOP
3 NW Penns Creek 6 F 0730 AM 12/05 AWS
Lewisburg 7 F 0735 AM 12/05 AWS
Lewisburg 8 F 0700 AM 12/05 COOP
LEWISBURG 9 F 0747 AM 12/05 CWOP
Lewisburg 10 F 0800 AM 12/05 CWOP

...Warren County...
Grand Valley -5 F 0800 AM 12/05 CWOP
Tidioute -4 F 0800 AM 12/05 Public
Tidioute -1 F 0815 AM 12/05 AWS
Kinzua 3 F 0622 AM 12/05 RAWS
Warren County Career Center 4 F 0655 AM 12/05 MESOWEST
Warren 6 F 0700 AM 12/05 COOP

...York County...
THOMASVILLE 0 F 0947 AM 12/05 CWOP

&&

Observations are collected from a variety of sources with varying
equipment and exposures. We thank all volunteer weather observers
for their dedication. Not all data listed are considered official.

$$

NPB