Tropical moisture continues to flow across portions of the Great Basin, desert Southwest and California. Isolated instances of flash flooding remains possible. Meanwhile, a storm and associated frontal boundary will focus showers and thunderstorms for the center of the nation. For New England, dry and breezy conditions could enhance favorable fire weather conditions. Read More >
Overview
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A widespread, long-lived thunderstorm line (bow echo) raced across western and central PA on the afternoon and early evening of 29 April 2025. The gusts associated with the line of storms reached above 80 MPH at times, producing widespread damage. A cold front was dropping down from the north across the lower Great Lakes. The thunderstorms which would eventually turn into the bow echo began to form over southern OH in the late morning hours. The storms became a line and began to bow out. The storms intensified as the bow moved across western PA in the afternoon. As it reached the Laurel Highlands, it was nearing it's peak intensity. It continued to be strong, holding very steady-state as it pushed through the entire width of the NWS State College Forecast Office's (WFO CTP) County Warning Area (CWA). Most of the damage was confined to an area between I-80 on the northern side and US Route 22 on the southern side. Per SPC & AMS: A derecho wind damage swath must extend either continuously or intermittently more than 400 miles (about 650 km) with a width of at least 60 miles (about 100 km). This criterion is used to eliminate more common, shorter-lived, and generally less-organized wind-producing convective systems. |
 Bow Echo on Radar |
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WPC Surface analysis at 8 PM EDT 29 April 2025 |
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| Nationwide Damage Reports 4/29/2025 | Maximum Wind Gusts 4/29/2025 | Radar Loop with Lightning Highlighted |
Wind & Hail:
Wind
As the bow echo, which can be classified as a quasi linear convective system (QLCS) due to it's long and wide path, raced across Central PA at 70 MPH, it produced widespread wind damage. Some measured speeds were into the 80+ MPH range. A gust estimated to be 110-120 MPH knocked over a cellular antenna tower in Cambria County. Power outages continued into the next two days as cleanup from the storm was performed.
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| KCCX Reflectivity Loop | KCCX Velocity Loop |
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| KPBZ Reflectivity Loop | KPBZ Velocity Loop |
Storm Reports
Preliminary Local Storm Report...Summary
National Weather Service State College PA
900 PM EDT Wed Apr 30 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0605 PM Tstm Wnd Dmg 1 N Brownstown 40.35N 78.94W
04/29/2025 Cambria PA 911 Call Center
Trees down on wires with a transformer down
across North Sheridan Street in Johnstown.
0612 PM Tstm Wnd Gst 2 NE Geistown 40.32N 78.83W
04/29/2025 M66 MPH Cambria PA ASOS
ASOS wind gust at KJST airport.
0612 PM Tstm Wnd Dmg 2 ESE Colver 40.54N 78.75W
04/29/2025 Cambria PA Storm Chaser
Tree uprooted along Colver Road near
Ebensburg.
0614 PM Tstm Wnd Dmg 2 W Patton 40.64N 78.69W
04/29/2025 Cambria PA Emergency Mngr
Cell tower collapsed on Sunset Road.
0616 PM Tstm Wnd Dmg 4 W Somerset 40.02N 79.16W
04/29/2025 Somerset PA Utility Company
Trees down across wires along Glades Pike
Road.
0618 PM Tstm Wnd Dmg 2 SSW Dubois 41.10N 78.78W
04/29/2025 Clearfield PA 911 Call Center
Trees down on wires across Lincoln Drive in
Dubois.
0618 PM Tstm Wnd Dmg 2 WNW Cassandra 40.42N 78.68W
04/29/2025 Cambria PA Emergency Mngr
Reports of a barn collapse on the 800 block
of Munster Road in Portage Township. Animals
trapped inside of the collapse.
0628 PM Tstm Wnd Dmg 5 NNE Horseshoe Curve 40.57N 78.45W
04/29/2025 Blair PA Mesonet
Trees and wires down across Wopsy Road near
the lookout.
0630 PM Tstm Wnd Dmg 2 S Treasure Lake 41.15N 78.72W
04/29/2025 Clearfield PA Public
Tree down onto a residence driveway with
multiple large branches snapped off of
trees.
0630 PM Tstm Wnd Dmg Newry 40.40N 78.44W
04/29/2025 Blair PA 911 Call Center
Tree fell onto a car with no injuries
reported.
0631 PM Tstm Wnd Dmg 1 WNW Lakemont 40.48N 78.40W
04/29/2025 Blair PA 911 Call Center
Large tree with wires down near a residence
and car, blocking entrances and exits.
0631 PM Tstm Wnd Dmg 1 NNE Altoona 40.52N 78.39W
04/29/2025 Blair PA 911 Call Center
Reports of a tree down on a residence on 7th
Avenue. Multiple trees and wires down across
Altoona.
0632 PM Tstm Wnd Dmg 2 WSW Penfield 41.20N 78.64W
04/29/2025 Clearfield PA 911 Call Center
Trees and wires knocked down onto a
residence.
0635 PM Tstm Wnd Dmg 2 W Philipsburg 40.89N 78.24W
04/29/2025 Clearfield PA 911 Call Center
Trees down on wires along Decatur Street
west of Philipsburg.
0635 PM Tstm Wnd Dmg 1 WSW Sinking Valley 40.57N 78.28W
04/29/2025 Blair PA 911 Call Center
Wires and telephone poles knocked down with
three barn roofs blown off.
0637 PM Tstm Wnd Dmg 2 SW Bald Eagle 40.72N 78.19W
04/29/2025 Blair PA 911 Call Center
Reports of multiple trees into a residence
with no injuries reported.
0638 PM Tstm Wnd Dmg Roaring Spring 40.34N 78.39W
04/29/2025 Blair PA 911 Call Center
Multiple trees down in Roaring Spring.
0642 PM Tstm Wnd Dmg 4 WSW Moshannon 41.00N 78.11W
04/29/2025 Clearfield PA Amateur Radio
Multiple trees and wires down in Grassflat.
0644 PM Tstm Wnd Gst 1 SSE Martinsburg 40.30N 78.32W
04/29/2025 M63 MPH Blair PA ASOS
0645 PM Tstm Wnd Dmg 1 NE Petersburg 40.59N 78.03W
04/29/2025 Huntingdon PA 911 Call Center
Trees down on wires along Route 305.
0646 PM Tstm Wnd Dmg 1 WNW Franklinville 40.65N 78.08W
04/29/2025 Huntingdon PA Amateur Radio
Numerous trees and wires down along Spruce
Creek Road.
0649 PM Tstm Wnd Dmg Huntingdon 40.50N 78.01W
04/29/2025 Huntingdon PA 911 Call Center
Widepsread trees and wires down in
Huntingdon. Power out at 911 center.
0649 PM Tstm Wnd Dmg 2 SSE Port Matilda 40.77N 78.04W
04/29/2025 Centre PA NWS Employee
Trees down with snapped power poles.
0649 PM Tstm Wnd Dmg 2 WNW Park Forest 40.81N 77.95W
04/29/2025 Centre PA Amateur Radio
Power poles snapped in Graysdale.
0650 PM Tstm Wnd Dmg 1 NNW Raystown Dam 40.47N 78.02W
04/29/2025 Huntingdon PA 911 Call Center
Tree knocked down onto a residence on
Country Hills Drive. No injuries reported.
0650 PM Tstm Wnd Dmg 4 WNW Park Forest 40.83N 77.97W
04/29/2025 Centre PA NWS Employee
Numerous trees down with one tree down on an
outbuilding.
0651 PM Tstm Wnd Dmg 1 NNW Park Forest 40.81N 77.91W
04/29/2025 Centre PA 911 Call Center
Trees and wires down onto a residence on
East Hillside Avenue. No injuries reported.
0651 PM Tstm Wnd Dmg 3 S Park Forest 40.76N 77.91W
04/29/2025 Centre PA Trained Spotter
Numerous trees and wires down along Nixon
Road. 66 MPH wind gust. Zero visibility
ahead of the squall in blowing dust.
0652 PM Tstm Wnd Gst 3 NNE State College 40.83N 77.85W
04/29/2025 M65 MPH Centre PA NWS Employee
65 MPH wind gust at the National Weather
Service Office in State College.
0652 PM Tstm Wnd Dmg 1 E Park Forest 40.80N 77.90W
04/29/2025 Centre PA 911 Call Center
Tree down into an apartment building. No
injuries reported.
0653 PM Tstm Wnd Dmg 1 NNW State College 40.81N 77.86W
04/29/2025 Centre PA Broadcast Media
*** 1 INJ ***
M52 mph tstm wind gust @PSU Beaver Stadium
WeatherSTEM lofted portable restroom into
student referee causing minor injuries.
Video Credit: Barstool Penn State.
0656 PM Tstm Wnd Gst Zion 40.92N 77.67W
04/29/2025 M61 MPH Centre PA Public
0657 PM Tstm Wnd Dmg 1 W State College 40.79N 77.88W
04/29/2025 Centre PA Public
Large trees knocked down on Hillcrest Avenue
near West Cherry Lane and Orlando Avenue.
0657 PM Tstm Wnd Dmg 4 NE State College 40.84N 77.81W
04/29/2025 Centre PA Public
Reports of roof and structural damage
northeast of Houserville.
0657 PM Tstm Wnd Dmg 3 NE Park Forest 40.83N 77.88W
04/29/2025 Centre PA 911 Call Center
Power line down on a vehicle with multiple
trees down in the vicinity of Cricklewood
Drive and Fox Hollow Road.
0658 PM Tstm Wnd Dmg 1 WSW State College 40.79N 77.87W
04/29/2025 Centre PA 911 Call Center
Reports of a tree on a residence with a tree
also down in a yard near the intersection of
South Patterson Street and South Sparks
Street.
0658 PM Tstm Wnd Dmg Bellefonte 40.91N 77.78W
04/29/2025 Centre PA Public
Tree down onto an apartment building in
Bellefonte. No injuries reported.
0658 PM Tstm Wnd Dmg Bellefonte 40.91N 77.78W
04/29/2025 Centre PA Trained Spotter
Trees and wires down in Bellefonte.
0659 PM Tstm Wnd Dmg 2 WSW Pleasant Gap 40.85N 77.77W
04/29/2025 Centre PA Trained Spotter
Trees and wires down across College Avenue
near Pleasant Gap.
0700 PM Tstm Wnd Dmg 1 S State College 40.78N 77.86W
04/29/2025 Centre PA Trained Spotter
At least 9 power poles snapped with
wires/poles on roadway along West College
Ave near Cato Drive and Whitehall Road,
Ferguson Township. At least two occupied
vehicles covered with downed wires.
0703 PM Tstm Wnd Dmg 3 WSW Mcveytown 40.49N 77.79W
04/29/2025 Mifflin PA Trained Spotter
Multiple trees down on Ferguson Valley Rd.
Time estimated using radar.
0708 PM Tstm Wnd Dmg 4 NNE Beech Creek 41.12N 77.56W
04/29/2025 Clinton PA Emergency Mngr
Reports of a barn collapse on the 1000 block
of Dry Run Road with debris from the
collapse blocking the roadway.
0709 PM Tstm Wnd Dmg 1 W Lamar 41.01N 77.53W
04/29/2025 Clinton PA Utility Company
Widespread trees and wires down near Lamar.
0709 PM Tstm Wnd Dmg 3 SE Howard 40.98N 77.61W
04/29/2025 Centre PA Public
Multiple trees snapped and uprooted
southeast of Howard.
0711 PM Tstm Wnd Dmg Lewistown 40.60N 77.58W
04/29/2025 Mifflin PA 911 Call Center
Trees down on wires across West 3rd Street
in Lewistown.
0711 PM Tstm Wnd Dmg 1 NNW Poe Valley State 40.85N 77.50W
04/29/2025 Centre PA 911 Call Center
Multiple trees reported down south of
Millheim.
0715 PM Tstm Wnd Dmg Alfarata 40.66N 77.47W
04/29/2025 Mifflin PA 911 Call Center
Numerous trees and wires down along Route
522 near Alfarata.
0719 PM Tstm Wnd Dmg 3 NNW Honey Grove 40.46N 77.58W
04/29/2025 Juniata PA 911 Call Center
Multiple trees down on wires across McKinley
Road near Honey Grove.
0719 PM Tstm Wnd Dmg 3 WSW Loganton 41.02N 77.36W
04/29/2025 Clinton PA 911 Call Center
Trees down on a barn near West Valley Road.
0720 PM Tstm Wnd Dmg 3 NNW Mifflintown 40.61N 77.42W
04/29/2025 Juniata PA 911 Call Center
Multiple trees down blocking the roadway on
Arch Rock Road.
0723 PM Tstm Wnd Dmg 1 NE Loganton 41.04N 77.29W
04/29/2025 Clinton PA Emergency Mngr
High tension wires knocked down in the
vicinity of Whitetail Trail.
0725 PM Tstm Wnd Dmg 1 WNW Port Royal 40.54N 77.40W
04/29/2025 Juniata PA Amateur Radio
Trees down across and blocking Route 333
near Port Royal.
0726 PM Tstm Wnd Dmg 1 WSW Mcalisterville 40.63N 77.29W
04/29/2025 Juniata PA 911 Call Center
Multiple trees down near the intersection of
Thompson Road and Route 35 North.
0729 PM Tstm Wnd Dmg Beavertown 40.76N 77.17W
04/29/2025 Snyder PA Utility Company
Numerous trees down across wires in
Beavertown.
0730 PM Tstm Wnd Dmg Covington 41.74N 77.07W
04/29/2025 Tioga PA 911 Call Center
Trees down 2800 block Rt 660, Covington
Township.
0740 PM Lightning 3 ENE Millerstown 40.57N 77.11W
04/29/2025 Perry PA 911 Call Center
Lightning struck a lightning pole, knocking
power out across the area and catching a
nearby tree on fire.
0740 PM Tstm Wnd Dmg 1 W Williamsport 41.24N 77.04W
04/29/2025 Lycoming PA 911 Call Center
Trees down 900 block Wildwood Ave.
0745 PM Tstm Wnd Dmg Williamsport 41.24N 77.02W
04/29/2025 Lycoming PA 911 Call Center
Multiple reports of trees and wires down in
Williamsport.
0746 PM Tstm Wnd Dmg 1 N Sunbury 40.87N 76.79W
04/29/2025 Northumberland PA Emergency Mngr
Reports of a building collapse on Julia
Street in Sunbury.
0746 PM Tstm Wnd Dmg 1 N Sunbury 40.87N 76.79W
04/29/2025 Northumberland PA 911 Call Center
Trees and wires down in Sunbury.
0747 PM Tstm Wnd Dmg Shamokin Dam 40.85N 76.83W
04/29/2025 Snyder PA 911 Call Center
Numerous trees and wires down along Route
15.
0747 PM Tstm Wnd Gst 1 E Shamokin Dam 40.85N 76.81W
04/29/2025 M68 MPH Northumberland PA Dept of Highways
Measured wind on the Route 147 bridge near
the Fabridam.
0757 PM Tstm Wnd Dmg 3 SE Millersburg 40.51N 76.91W
04/29/2025 Dauphin PA 911 Call Center
Multiple trees down in Halifax Township,
blocking roadways.
0758 PM Tstm Wnd Dmg Lairdsville 41.23N 76.61W
04/29/2025 Lycoming PA Emergency Mngr
Reports of a roof blowing of a structure on
the 6000 block of State Route 118. The roof
blowing off also knocked over a 1000 gallon
propane tank.
0805 PM Tstm Wnd Dmg 1 SW Valley View 40.65N 76.54W
04/29/2025 Schuylkill PA 911 Call Center
Numerous trees and wires down in Valley
View.
0805 PM Tstm Wnd Dmg 3 S Stillwater 41.11N 76.36W
04/29/2025 Columbia PA 911 Call Center
Trees and wires down along Route 487.
0806 PM Tstm Wnd Dmg 1 SSE Numidia 40.88N 76.40W
04/29/2025 Columbia PA Utility Company
Trees and wires down along Route 42 in
Numidia.
&&
$$
Environment
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| SPC Severe Weather Outlook Day 1 | SPC Mesoscale Discussion before the storms began | Late-Event Near-storm Environment Update |
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