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Latest PA Weather Summary:

026
AWUS81 KCTP 302337
RWSCTP
PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046-
049>053-056>059-063>066-011345-

Regional Weather Summary
National Weather Service State College PA
737 PM EDT Wed Apr 30 2025

Clouds will increase tonight into Thursday morning ahead of the
next storm system, approaching from the west. Low temperatures
overnight will range from the lower 30s across northeastern
Pennsylvania to the lower 50s across southwestern PA. Areas of
frost will be possible in the Endless Mountains and Poconos.

Showers will ramp up across western Pennsylvania Thursday morning,
spread east during the day and continue statewide through Friday,
with a chance for afternoon and evening thunderstorms both days.
High temperatures tomorrow will be in the mid 70s most of the
Commonwealth, but rise into the lower 80s across the southwest.

$$

Latest Forecaster's Discussion:

665
FXUS61 KCTP 010022
AFDCTP

Area Forecast Discussion
National Weather Service State College PA
822 PM EDT Wed Apr 30 2025

.SYNOPSIS...
* Scattered thunderstorms with gusty winds and locally heavy
downpours Thursday afternoon and evening
* Periods of showers on Friday followed by growing confidence in
an increasingly wet pattern through the first week of May

&&

.NEAR TERM /THROUGH THURSDAY/...
Things pretty much on track. Temps did drop quickly as it
started to get dark, with temps already about 10F lower than
earlier maxes. Tweaked the temp curve a little.

Prev...
Mainly clear this evening into tonight. Efficient radiational
cooling will support areas of frost across the northeast zones
(Endless Mtns into the Poconos) into early Thursday morning with
fcst min temperatures in the mid 30s. The growing season for
this area does not activate until 5/11, so no frost headlines
will be issued. Meanwhile, more clouds and higher dewpoints keep
lows near 50F along the PA/MD border or +5-10 degrees above
climo in the Laurel Highlands.

&&

.SHORT TERM /THURSDAY NIGHT THROUGH FRIDAY NIGHT/...
Upper ridging will begin to erode on Thursday as a trough over
the High Plains moves into the northeast US. At the surface, the
quasi stationary front south of the Mason-Dixon line will pivot
and lift northward as a warm front across Central PA as a sfc
low tracks from near Chicago into Lake Huron by 02/12Z. Expect
shower activity to ramp up particularly in the western and
northwestern portions of the CWA through Thursday night in
association with strongest 850mb moisture flux and IVT.

HREF shows a fairly tight instability gradient setting up along
the Allegheny Front by peak heating Thursday afternoon. Deep
layer shear values are supportive of a few strong to severe
t-storms and SPC expanded the D2 SLGT risk outlook a bit
farther to the east into the NW mtns with todays (4/30) 1730UTC
update. However, it still appears the greatest threat is outside
of the CWA over far NW PA/Upper Ohio Valley. Some locally heavy
downpours are also possible mainly over western PA within a
broad D2 MRGL ERO from WPC within a fairly moisture rich/hi pwat
environment. The area will be between frontal waves Thursday
night into Friday with some passing showers through Friday
night.

Temps will peak Thursday night and Friday with the largest
departures from climo (+15-25F) on low temps for the first
night of May.

&&

.LONG TERM /SATURDAY THROUGH WEDNESDAY/...
The latest guidance continues to signal a wet pattern setting up
this weekend which appears to continue into next week. The next
frontal wave drives widespread rain on Saturday before slowing
down as the upper trough cuts off and forms a closed low in the
Ohio Valley. The 500mb cut off low meanders over the Ohio Valley
into early next week then slowly drifts to the east by the end
of the period. There is still some uncertainty on how the
pattern will evolve, but the key takeaway is a bullish trend for
largely beneficial rainfall with 7-day WPC QPF printing 1-2+
inches over most of central PA.

&&

.AVIATION /00Z THURSDAY THROUGH MONDAY/...
VFR conditions are expected tonight and into Thursday. A few
showers could approach BFD in the 13-15Z timeframe as a warm
front lifts northward, but most guidance suggests that they will
stay to the west. Additional showers and thunderstorms will
develop after 18Z, and will approach BFD and JST after 19Z. The
best chance for thunder will be at BFD and have included a
PROB30 there with the 00Z TAF package. Thunder will be possible
at JST and AOO as well, but confidence is lower. Some of the
storms could produce strong wind gusts.

Showers and storms will push eastward through the evening,
though the threat for thunder will rapidly drop off as the
showers enter a much more stable environment from east of AOO
and UNV.

Fri...Scattered showers with some restrictions possible.

Sat-Mon...Periods of rain and sub-VFR conditions likely.

&&

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

&&

$$

SYNOPSIS...Dangelo/Steinbugl
NEAR TERM...Dangelo/Steinbugl
SHORT TERM...Steinbugl
LONG TERM...Steinbugl
AVIATION...Steinbugl/Bauco

Latest Public Information Statement:

834
NOUS41 KCTP 301941
PNSCTP
PAZ024-302345-

Public Information Statement
National Weather Service State College PA
341 PM EDT Wed Apr 30 2025

...NWS Damage Survey Confirms Straight-Line Wind Damage in
Cambria County...

The National Weather Service conducted a storm survey in Cambria
County this afternoon. The survey was in relation to the severe
thunderstorms that moved through the area during the late
afternoon and early evening on Tuesday, April 29th.

A cell phone tower in Carrolltown borough was located as a single
point of damage with maximum winds esimated between 110 and 120
mph. There was no other damage observed in the survey area.

$$

MRS/Guse/JB3/Fitz