Latest PA Weather Summary:
499
AWUS81 KCTP 181011
RWSCTP
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-
049>053-056>059-063>066-190015-
Regional Weather Summary
National Weather Service State College PA
511 AM EST Tue Nov 18 2025
A weak ridge of high pressure over the Commonwealth will bring a
brief period of clearing early today before clouds thicken up from
the west later this morning through the afternoon, well ahead of
low pressure located over Missouri at daybreak.
This weather feature will spread a shield of chilly, steady rain
across the southwestern third of Pennsylvania this afternoon and
evening. As the precipitation drifts north toward the Interstate
80 corridor this evening, the air will be cold enough to allow a
mixture of rain and wet snow to occur. There could be a light
coating of snow on the highest ridge tops of Central PA
overnight.
The precipitation will exit to the east and off the Mid Atlantic
Coast Wednesday morning, but light wind and leftover moisture will
lead to lingering low clouds through the day Wednesday.
High temperatures today will range from the upper 30s to near 40
across the northwest half of the state, to the mid and upper 40s
respectively across the Lower Susquehanna Valley and Southeastern
PA. Low temperatures early Wednesday will be in the mid to upper
20s over the Northern Tier Counties and in the 30s across the
remainder of Central and Southern Pennsylvania.
$$
Latest Forecaster's Discussion:
822
FXUS61 KCTP 181137
AFDCTP
Area Forecast Discussion
National Weather Service State College PA
637 AM EST Tue Nov 18 2025
.SYNOPSIS...
* Rain arrives later today and mixes with elevation-driven, wet
snow this evening through tonight near & north of I-80
* Mainly dry Wednesday and Thursday; trending milder with some
rain likely to end the week
* Seasonable and mainly dry weekend before Thanksgiving
&&
.NEAR TERM /THROUGH TONIGHT/...
Quiet start today under the influence of high pressure migrating
eastward across the central Appalachians toward the NC/VA coast.
Some locations in CPA will wake up to temperatures in the mid
to upper teens particularly over the southwestern portion of the
CWA where skies are clear and winds are light.
A fast moving low pressure system streaking eastward from the
Ohio Valley to the Delmarva will bring rain and light snow to
CPA later today through the overnight hours. Hires guidance
shows the steadier precip occurring this evening through
tonight, however the warm advection regime may speed up the
onset. Dry air near the sfc (10-20 degree Td depressions)
should offset the quicker advance/arrival of the WAA precip.
Tight to marginally cold 850mb thermal gradient combined with
elevation and wet bulb effects suggest some mixed/wintry precip
is likely this evening through tonight into early Wednesday
(predawn) morning. HREF data is bullish for freezing rain on
the ridgetops across the Laurel Highlands and southern
Alleghenies particularly Cambria/Blair county border. Icy spots
and slick roads are possible, but overall impact may be limited
given marginal road/air temps. Meanwhile, there is a better
signal for a slushy, minor (<1"), elevation-driven snow accum
particularly over east-central PA near/along the I80 to US220
corridors in the 06-12Z window. Snow accum is most likely on
non-paved and elevated surfaces with minimum temps hovering
near to slightly above the freezing mark. Precip should
end/shift to the east by 7AM/12Z Wednesday.
&&
.SHORT TERM /WEDNESDAY THROUGH THURSDAY NIGHT/...
High pressure provides mainly dry weather through midweek;
however this period looks rather cloudy especially on Thursday.
Fcst daytime max temps hold steady in the 40-50F range with the
largest 24hr deltas on the order of +5-10F coming Thursday
night (low temps 35-45F or +10-15F above mid Nov. climo).
&&
.LONG TERM /FRIDAY THROUGH MONDAY/...
Split stream flow and weak frontal system offers the best
chance of rain on Friday to end the week. Latest model and
ensemble trends favor a drying trend through the weekend. Timing
differences and uncertainty both increase with the the next
northern stream wave early next week. Friday looks like the
mildest day with near to slightly above normal temps fcst into
the start of Thanksgiving week.
&&
.AVIATION /12Z TUESDAY THROUGH SATURDAY/...
A stripe of fairly high-based (VFR) and shallow lake effect
strato clouds (with a multi-glake upstream connection) will be
exiting our NE zones over the next few hours through 13-14Z.
A narrow north/south ridge of sfc high pressure and deep dry
air aloft was over Central PA at 1130Z. This will bring
continued widespread VFR with mainly clear skies across the
Central Mtns and Lower Susq Valley, followed by a quickly
increasing mid level cloud deck late this morning through the
mid afternoon hours (from west to east across the state).
The timing of the clearing and increasing clouds will maximize
radiational cooling of the near surface layer, allowing for the
onset of precip to be a cold, light rain or mixed precip
(rain/wet snow) as the level of the wet bulb 0C dips to just
several hundred feet AGL, as is topped by a few to several KFT
layer of wet bulb temps between zero and 1C. The cold air could
be deep enough from near KSEG and KIPT...NE to support a several
hour period of wet snow and relatively lower VSBYS there
later tonight.
Conditions will gradually dip to MVFR during the mid to late
afternoon across the Western Mtns and during the early to mid
evening from the Susq Valley...east.
MVFR to IFR CIGS and vsbys will follow for later tonight and
persist through much of Wed as shallow/moist cool air remains
with very light wind in the lowest 3-4 kft AGL - leading to
widespread, shallow and non-precipitating stratus.
Outlook...
Wed...AM showers southeast, restrictions likely from southeast
flow/low clouds.
Thu...Dry, restrictions likely in low clouds.
Fri-Sat...Widespread rain expected.
&&
.CTP WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
SYNOPSIS...Steinbugl
NEAR TERM...Steinbugl/Colbert
SHORT TERM...Steinbugl/Colbert
LONG TERM...Steinbugl/Colbert
AVIATION...Lambert
Latest Public Information Statement:
118
NOUS41 KCTP 171624
PNSCTP
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-049>053-056>059-
063>066-180424-
Public Information Statement
National Weather Service State College PA
1124 AM EST Mon Nov 17 2025
...SNOWFALL REPORTS...
Location Amount Time/Date Provider
...Pennsylvania...
...Blair County...
Altoona 2 T in 0800 AM 11/17 COOP
...Centre County...
Bellefonte 7.1 ENE 0.6 in 0730 AM 11/17 COCORAHS
Philipsburg 0.3 in 0700 AM 11/17 COOP
Bellefonte 4.3 E 0.1 in 0800 AM 11/17 COCORAHS
State College 2.4 ENE 0.1 in 0900 AM 11/17 COCORAHS
State College 2.6 NW 0.1 in 0730 AM 11/17 COCORAHS
Boalsburg 0.4 E T in 0800 AM 11/17 COCORAHS
Port Matilda 2.2 ESE T in 0700 AM 11/17 COCORAHS
Boalsburg 1.2 ENE T in 0700 AM 11/17 COCORAHS
State College 1.3 SW T in 0700 AM 11/17 COCORAHS
State College T in 0800 AM 11/17 COOP
...Clearfield County...
Grampian 0.5 in 0600 AM 11/17 COOP
DuBois 2.7 S 0.5 in 0830 AM 11/17 COCORAHS
...Clinton County...
Mill Hall 1.6 N T in 0704 AM 11/17 COCORAHS
Renovo T in 0700 AM 11/17 COOP
...Lycoming County...
Jersey Shore 0.7 WSW T in 0700 AM 11/17 COCORAHS
Williamsport 2.0 NE T in 0700 AM 11/17 COCORAHS
...McKean County...
Bradford 5SW 4.0 in 0800 AM 11/17 COOP
Bradford 1.8 SW 4.0 in 0700 AM 11/17 COCORAHS
...Northumberland County...
Muncy 4.7 SSE T in 0700 AM 11/17 COCORAHS
...Potter County...
0.6 E Galeton 0.5 in 0800 AM 11/17 COOP
Roulette 1.8 NNE 0.5 in 0700 AM 11/17 COCORAHS
...Snyder County...
Selinsgrove 2.6 WNW 0.1 in 0700 AM 11/17 COCORAHS
...Somerset County...
Rockwood 4.3 W T in 0651 AM 11/17 COCORAHS
Somerset T in 0800 AM 11/17 COOP
...Sullivan County...
Laporte T in 0645 AM 11/17 COOP
...Tioga County...
1.3 NE Leonard Harrison SP 0.3 in 0700 AM 11/17 COOP
Covington 2 WSW T in 0400 AM 11/17 COOP
Cowanesque Dam T in 0700 AM 11/17 COOP
Westfield 2.4 W T in 0912 AM 11/17 COCORAHS
...Warren County...
Russell 4.7 W 2.9 in 0800 AM 11/17 COCORAHS
Russell 0.7 S 1.6 in 0800 AM 11/17 COCORAHS
&&
**METADATA**
:11/17/2025,0800 AM, PA, Blair, Altoona 2, , , 40.5267, -78.3694, SNOW, 0.001, Inch, COOP, Storm total snowfall,
:11/17/2025,0800 AM, PA, Centre, Boalsburg 0.4 E, , , 40.7736, -77.7847, SNOW, 0.001, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0700 AM, PA, Centre, Port Matilda 2.2 ESE, , , 40.7912, -78.0118, SNOW, 0.001, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0700 AM, PA, Centre, Boalsburg 1.2 ENE, , , 40.7814, -77.7707, SNOW, 0.001, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0700 AM, PA, Centre, State College 1.3 SW, , , 40.7801, -77.8783, SNOW, 0.001, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0800 AM, PA, Centre, State College, , , 40.7935, -77.8672, SNOW, 0.001, Inch, COOP, Storm total snowfall,
:11/17/2025,0800 AM, PA, Centre, Bellefonte 4.3 E, , , 40.9249, -77.6869, SNOW, 0.1, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0900 AM, PA, Centre, State College 2.4 ENE, , , 40.8067, -77.8167, SNOW, 0.1, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0730 AM, PA, Centre, State College 2.6 NW, , , 40.8162, -77.8954, SNOW, 0.1, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0700 AM, PA, Centre, Philipsburg, , , 40.8722, -78.2153, SNOW, 0.3, Inch, COOP, Storm total snowfall,
:11/17/2025,0730 AM, PA, Centre, Bellefonte 7.1 ENE, , , 40.9557, -77.6447, SNOW, 0.6, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0600 AM, PA, Clearfield, Grampian, , , 40.9666, -78.5871, SNOW, 0.5, Inch, COOP, Storm total snowfall,
:11/17/2025,0830 AM, PA, Clearfield, DuBois 2.7 S, , , 41.0842, -78.7467, SNOW, 0.5, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0704 AM, PA, Clinton, Mill Hall 1.6 N, , , 41.1276, -77.4854, SNOW, 0.001, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0700 AM, PA, Clinton, Renovo, , , 41.3333, -77.7333, SNOW, 0.001, Inch, COOP, Storm total snowfall,
:11/17/2025,0700 AM, PA, Lycoming, Jersey Shore 0.7 WSW, , , 41.1954, -77.2792, SNOW, 0.001, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0700 AM, PA, Lycoming, Williamsport 2.0 NE, , , 41.2571, -77.0085, SNOW, 0.001, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0800 AM, PA, McKean, Bradford 5SW, , , 41.898, -78.7143, SNOW, 4, Inch, COOP, Storm total snowfall,
:11/17/2025,0700 AM, PA, McKean, Bradford 1.8 SW, , , 41.9446, -78.667, SNOW, 4, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0700 AM, PA, Northumberland, Muncy 4.7 SSE, , , 41.1361, -76.7651, SNOW, 0.001, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0800 AM, PA, Potter, 0.6 E Galeton, , , 41.7333, -77.6333, SNOW, 0.5, Inch, COOP, Storm total snowfall,
:11/17/2025,0700 AM, PA, Potter, Roulette 1.8 NNE, , , 41.8076, -78.1414, SNOW, 0.5, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0700 AM, PA, Snyder, Selinsgrove 2.6 WNW, , , 40.8173, -76.9097, SNOW, 0.1, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0651 AM, PA, Somerset, Rockwood 4.3 W, , , 39.9215, -79.2377, SNOW, 0.001, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0800 AM, PA, Somerset, Somerset, , , 40, -79.0833, SNOW, 0.001, Inch, COOP, Storm total snowfall,
:11/17/2025,0645 AM, PA, Sullivan, Laporte, , , 41.4247, -76.4925, SNOW, 0.001, Inch, COOP, Storm total snowfall,
:11/17/2025,0400 AM, PA, Tioga, Covington 2 WSW, , , 41.7333, -77.1167, SNOW, 0.001, Inch, COOP, Storm total snowfall,
:11/17/2025,0700 AM, PA, Tioga, Cowanesque Dam, , , 41.9906, -77.1566, SNOW, 0.001, Inch, COOP, Storm total snowfall,
:11/17/2025,0912 AM, PA, Tioga, Westfield 2.4 W, , , 41.9131, -77.5861, SNOW, 0.001, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0700 AM, PA, Tioga, 1.3 NE Leonard Harrison SP, , , 41.7003, -77.3894, SNOW, 0.3, Inch, COOP, Storm total snowfall,
:11/17/2025,0800 AM, PA, Warren, Russell 0.7 S, , , 41.9313, -79.138, SNOW, 1.6, Inch, COCORAHS, Storm total snowfall,
:11/17/2025,0800 AM, PA, Warren, Russell 4.7 W, , , 41.942, -79.0494, SNOW, 2.9, Inch, COCORAHS, Storm total snowfall,
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.
$$
Martin
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