A squall line pushed from the Great Lakes into central Pennsylvania during the evening of July 20, 2023. An intense storm formed just ahead of the squall line over Warren County producing damaging winds and large hail. Then the squall line arrived with more widespread damaging winds as it crossed central Pennsylvania from northwest to southeast through the late evening and early overnight hours.

Thunderstorm Wind in CENTRE, PENNSYLVANIA
From 20-JUL-23 21:25:00 to 20-JUL-23 21:25:00 (EST-5)
Location: FILLMORE
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees on Buffalo Run Road near Fillmore.

Thunderstorm Wind in CLINTON, PENNSYLVANIA
From 20-JUL-23 21:20:00 to 20-JUL-23 21:20:00 (EST-5)
Location: DUNNSTOWN
Magnitude: 52.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees and several sets of wires down near and around Lock Haven.

Thunderstorm Wind in TIOGA, PENNSYLVANIA
From 20-JUL-23 21:29:00 to 20-JUL-23 21:29:00 (EST-5)
Location: MANSFIELD
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in Mansfield.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 20-JUL-23 21:35:00 to 20-JUL-23 21:35:00 (EST-5)
Location: STEAM VLY
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires on Green Mountain Road north-northwest of Trout Run.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 20-JUL-23 21:45:00 to 20-JUL-23 21:45:00 (EST-5)
Location: NEWBERRY
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires on the western end of Williamsport.

Hail in WARREN, PENNSYLVANIA
From 20-JUL-23 17:56:00 to 20-JUL-23 17:56:00 (EST-5)
Location: WRIGHTSVILLE
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm produced tennis ball sized hail west of Lottsville.

Thunderstorm Wind in WARREN, PENNSYLVANIA
From 20-JUL-23 18:39:00 to 20-JUL-23 18:39:00 (EST-5)
Location: NORTH WARREN
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto Hatch Run Road to the east of North Warren.

Thunderstorm Wind in WARREN, PENNSYLVANIA
From 20-JUL-23 18:29:00 to 20-JUL-23 18:29:00 (EST-5)
Location: GARLAND
Magnitude: 61.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 70 mph knocked down wires onto Route 426 and Chappy Road east of Spring Creek.

Thunderstorm Wind in WARREN, PENNSYLVANIA
From 20-JUL-23 18:40:00 to 20-JUL-23 18:40:00 (EST-5)
Location: TIDIOUTE
Magnitude: 61.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 70 mph knocked down multiple trees and wires in the Tidioute area.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 20-JUL-23 21:55:00 to 20-JUL-23 21:55:00 (EST-5)
Location: RALSTON
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down tree onto Abbotts Hollow Road north of Ralston.

Thunderstorm Wind in BLAIR, PENNSYLVANIA
From 20-JUL-23 21:57:00 to 20-JUL-23 21:57:00 (EST-5)
Location: LAKEMONT
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in the vicinity of Altoona and Hollidaysburg.

Thunderstorm Wind in BLAIR, PENNSYLVANIA
From 20-JUL-23 21:59:00 to 20-JUL-23 21:59:00 (EST-5)
Location: TYRONE
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in Tyrone.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 20-JUL-23 22:35:00 to 20-JUL-23 22:35:00 (EST-5)
Location: HUGHESVILLE
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees throughout eastern Lycoming County.

Thunderstorm Wind in BEDFORD, PENNSYLVANIA
From 20-JUL-23 22:48:00 to 20-JUL-23 22:48:00 (EST-5)
Location: FISHERTOWN
Magnitude: 52.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm producing winds estimated near 60 mph snapped off large limbs, uprooted several trees, snapped a soft pine tree trunk off of Adams Run Road east of Fishertown.

Thunderstorm Wind in WARREN, PENNSYLVANIA
From 20-JUL-23 18:25:00 to 20-JUL-23 18:25:00 (EST-5)
Location: EAST BRANCH
Magnitude: 65.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm producing winds estimated near 75 mph knocked down snapped and uprooted multiple maple, ash, and pine trees across Mickle Hill Road south of Spring Creek.

Thunderstorm Wind in WARREN, PENNSYLVANIA
From 20-JUL-23 18:25:00 to 20-JUL-23 18:25:00 (EST-5)
Location: EAST BRANCH
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm producing winds estimated near 75 mph snapped or uprooted a large area of trees south of Spring Creek. Drone footage showed a straight-line wind downburst pattern with trees spreading along the downslope side of a hill.

Thunderstorm Wind in WARREN, PENNSYLVANIA
From 20-JUL-23 18:35:00 to 20-JUL-23 18:35:00 (EST-5)
Location: GARLAND
Magnitude: 65.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A severe thunderstorm producing winds estimated near 75 mph snapped or uprooted multiple ash and pine trees across Ross Hill Road south of Garland.

Thunderstorm Wind in WARREN, PENNSYLVANIA
From 20-JUL-23 18:59:00 to 20-JUL-23 18:59:00 (EST-5)
Location: OLD CLARENDON
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm producing winds estimated near 75 mph snapped and uprooted multiple ash and pine trees near Cherry Grove Road in Mead Township to the south of Clarendon.

Thunderstorm Wind in CUMBERLAND, PENNSYLVANIA
From 20-JUL-23 23:44:00 to 20-JUL-23 23:44:00 (EST-5)
Location: GREENSPRING
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree across Mountain Road west of Green Spring.

Thunderstorm Wind in CUMBERLAND, PENNSYLVANIA
From 21-JUL-23 00:00:00 to 21-JUL-23 00:00:00 (EST-5)
Location: GREASON
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree across Interstate 81 blocking the right lane in the northbound direction southwest of Carlisle.

Thunderstorm Wind in CUMBERLAND, PENNSYLVANIA
From 21-JUL-23 00:13:00 to 21-JUL-23 00:13:00 (EST-5)
Location: TOLAND
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto a campsite in the Cherokee Campground northwest of Goodyear.

Thunderstorm Wind in ADAMS, PENNSYLVANIA
From 21-JUL-23 00:25:00 to 21-JUL-23 00:25:00 (EST-5)
Location: YORK SPGS
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto 2nd Street on the north end of York Springs.

Thunderstorm Wind in ELK, PENNSYLVANIA
From 20-JUL-23 19:29:00 to 20-JUL-23 19:29:00 (EST-5)
Location: MONTMORENCI
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires on Red Mill Dam Road west of Johnsonburg.

Hail in BLAIR, PENNSYLVANIA
From 20-JUL-23 22:10:00 to 20-JUL-23 22:10:00 (EST-5)
Location: BELLWOOD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm produced quarter-sized hail in Bellwood.

Thunderstorm Wind in ELK, PENNSYLVANIA
From 20-JUL-23 19:27:00 to 20-JUL-23 19:27:00 (EST-5)
Location: ROLFE
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires on Silver Creek Road northwest of Johnsonburg.

Thunderstorm Wind in MCKEAN, PENNSYLVANIA
From 20-JUL-23 19:34:00 to 20-JUL-23 19:34:00 (EST-5)
Location: SMETHPORT
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees and wires on US Route 6 in Smethport.

Thunderstorm Wind in MCKEAN, PENNSYLVANIA
From 20-JUL-23 19:45:00 to 20-JUL-23 19:45:00 (EST-5)
Location: PORT ALLEGANY
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees on State Route 155 near Two Mile Road north of Port Allegany.

Thunderstorm Wind in CUMBERLAND, PENNSYLVANIA
From 21-JUL-23 00:29:00 to 21-JUL-23 00:29:00 (EST-5)
Location: NEW KINGSTOWN
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree that blocked the southbound lane of US Route 11 west of Hogestown.

Thunderstorm Wind in DAUPHIN, PENNSYLVANIA
From 21-JUL-23 00:13:00 to 21-JUL-23 00:13:00 (EST-5)
Location: DAUPHIN
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees north of Dauphin.

Thunderstorm Wind in ADAMS, PENNSYLVANIA
From 21-JUL-23 00:35:00 to 21-JUL-23 00:35:00 (EST-5)
Location: BRUSHTOWN
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto Sacremento Court along with snapping a small tree into a yard south of Brushtown.

Thunderstorm Wind in DAUPHIN, PENNSYLVANIA
From 21-JUL-23 00:39:00 to 21-JUL-23 00:39:00 (EST-5)
Location: OBERLIN
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree onto Interstate 83 near Paxtang.

Thunderstorm Wind in DAUPHIN, PENNSYLVANIA
From 21-JUL-23 00:42:00 to 21-JUL-23 00:42:00 (EST-5)
Location: SHOPE GARDENS
Magnitude: 52.00 EG
Property damage: 22.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree that fell through the roof of a house north of Highspire.

Thunderstorm Wind in MCKEAN, PENNSYLVANIA
From 20-JUL-23 19:15:00 to 20-JUL-23 19:15:00 (EST-5)
Location: LEWIS RUN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees in Lewis Run Borough.

Thunderstorm Wind in POTTER, PENNSYLVANIA
From 20-JUL-23 20:01:00 to 20-JUL-23 20:01:00 (EST-5)
Location: AUSTIN
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees onto wires in Austin.

Thunderstorm Wind in CLEARFIELD, PENNSYLVANIA
From 20-JUL-23 19:55:00 to 20-JUL-23 19:55:00 (EST-5)
Location: PENFIELD
Magnitude: 52.00 EG
Property damage: 7.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in Penfield, including a tree on a house.

Thunderstorm Wind in CAMERON, PENNSYLVANIA
From 20-JUL-23 19:57:00 to 20-JUL-23 19:57:00 (EST-5)
Location: LOCKWOOD
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down trees across State Route 46 northwest of Emporium.

Thunderstorm Wind in POTTER, PENNSYLVANIA
From 20-JUL-23 20:17:00 to 20-JUL-23 20:17:00 (EST-5)
Location: GENESEE
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down multiple trees in Genesee.

Hail in WARREN, PENNSYLVANIA
From 20-JUL-23 18:11:00 to 20-JUL-23 18:11:00 (EST-5)
Location: SUGAR GROVE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm produced golf ball sized hail near Sugar Grove.

Thunderstorm Wind in CLEARFIELD, PENNSYLVANIA
From 20-JUL-23 20:33:00 to 20-JUL-23 20:33:00 (EST-5)
Location: CLEARFIELD ARPT
Magnitude: 52.00 EG
Property damage: 4.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree into wires on the northeastern side of Clearfield.

Thunderstorm Wind in CLINTON, PENNSYLVANIA
From 20-JUL-23 20:45:00 to 20-JUL-23 20:45:00 (EST-5)
Location: HYNER
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down a large tree across State Route 120 south-southeast of Hyner.

Thunderstorm Wind in CLINTON, PENNSYLVANIA
From 20-JUL-23 21:12:00 to 20-JUL-23 21:12:00 (EST-5)
Location: MILL HALL
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A severe thunderstorm producing winds estimated near 60 mph stripped portions of a flat rubber roof and tore part of a gutter from a structure on the northern end of Mill Hall.

Thunderstorm Wind in CENTRE, PENNSYLVANIA
From 20-JUL-23 21:20:00 to 20-JUL-23 21:20:00 (EST-5)
Location: BUFFALO RUN
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A severe thunderstorm producing winds estimated near 60 mph knocked down a tree at the intersection of North Atherton Street and Stevenson Road south of Waddle.