Thunderstorms developed during the late morning over western Pennsylvania and intensified into a well-defined squall line /QLCS/ with bowing segments as it moved through central Pennsylvania during the afternoon. The line of storms produced corridors of severe straight-line winds which prompted numerous reports of wind damage.

Thunderstorm Wind in POTTER, PENNSYLVANIA
From 12-SEP-13 13:30:00 to 12-SEP-13 13:30:00 (EST-5)
Location: GERMANIA
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: Fire Department/Rescue

Thunderstorm winds estimated near 60 mph knocked down trees along Rt 144 in Germania.

Thunderstorm Wind in MIFFLIN, PENNSYLVANIA
From 12-SEP-13 13:40:00 to 12-SEP-13 13:40:00 (EST-5)
Location: LONGFELLOW
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees in Longfellow.

Thunderstorm Wind in MIFFLIN, PENNSYLVANIA
From 12-SEP-13 13:40:00 to 12-SEP-13 13:40:00 (EST-5)
Location: MILROY
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees in Milroy.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 12-SEP-13 14:15:00 to 12-SEP-13 14:15:00 (EST-5)
Location: SOUTH WILLIAMSPOR
Magnitude: 50.00 EG
Property damage: 5.00K
Reported by: Fire Department/Rescue

Thunderstorm winds estimated near 60 mph knocked down trees in South Williamsport. One tree fell on a car with no injuries reported.

Thunderstorm Wind in JUNIATA, PENNSYLVANIA
From 12-SEP-13 14:10:00 to 12-SEP-13 14:10:00 (EST-5)
Location: THOMPSONTOWN
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees in Thompsontown.

Thunderstorm Wind in LANCASTER, PENNSYLVANIA
From 12-SEP-13 16:30:00 to 12-SEP-13 16:30:00 (EST-5)
Location: INTERCOURSE
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph blew a roof off of a structure in Intercourse.

Thunderstorm Wind in SCHUYLKILL, PENNSYLVANIA
From 12-SEP-13 15:39:00 to 12-SEP-13 15:39:00 (EST-5)
Location: GLENWORTH
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees in Pottsville.

Thunderstorm Wind in CLINTON, PENNSYLVANIA
From 12-SEP-13 13:40:00 to 12-SEP-13 13:40:00 (EST-5)
Location: SWISSDALE
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees along Farrandsville Road near Lock Haven.

Thunderstorm Wind in YORK, PENNSYLVANIA
From 12-SEP-13 14:45:00 to 12-SEP-13 14:45:00 (EST-5)
Location: SPRINGVALE
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires along Pleasant Grove road near Red Lion.

Thunderstorm Wind in LEBANON, PENNSYLVANIA
From 12-SEP-13 15:45:00 to 12-SEP-13 15:45:00 (EST-5)
Location: CORNWALL
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires in Cornwall.

Thunderstorm Wind in LEBANON, PENNSYLVANIA
From 12-SEP-13 15:45:00 to 12-SEP-13 15:45:00 (EST-5)
Location: KUTZTOWN
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires along Yeagley Road in Myerstown.

Thunderstorm Wind in YORK, PENNSYLVANIA
From 12-SEP-13 15:54:00 to 12-SEP-13 15:54:00 (EST-5)
Location: YORK
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: State Official

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires along West Cottage Place in York.

Thunderstorm Wind in SNYDER, PENNSYLVANIA
From 12-SEP-13 14:35:00 to 12-SEP-13 14:35:00 (EST-5)
Location: KREAMER
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees in Kreamer.

Thunderstorm Wind in ADAMS, PENNSYLVANIA
From 12-SEP-13 14:45:00 to 12-SEP-13 14:45:00 (EST-5)
Location: FAIRFIELD ARPT
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires along Steelman Marker Road in Carroll Valley.

Thunderstorm Wind in ADAMS, PENNSYLVANIA
From 12-SEP-13 14:40:00 to 12-SEP-13 14:40:00 (EST-5)
Location: IRON SPGS
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: State Official

Thunderstorm winds estimated near 60 mph knocked down trees and wires at the intersection of Gum Springs and Mount Hope Road near Gladhill.

Thunderstorm Wind in DAUPHIN, PENNSYLVANIA
From 12-SEP-13 14:55:00 to 12-SEP-13 14:55:00 (EST-5)
Location: GRATZ ARPT
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: Social Media

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires in Gratz.

Thunderstorm Wind in LANCASTER, PENNSYLVANIA
From 12-SEP-13 16:05:00 to 12-SEP-13 16:05:00 (EST-5)
Location: REINHOLDS
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: Fire Department/Rescue

Thunderstorm winds estimated near 60 mph knocked down trees and wires in Reinholds.

Thunderstorm Wind in SNYDER, PENNSYLVANIA
From 12-SEP-13 14:40:00 to 12-SEP-13 14:40:00 (EST-5)
Location: PORT TREVORTON
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees in Port Traverton.

Thunderstorm Wind in TIOGA, PENNSYLVANIA
From 12-SEP-13 14:00:00 to 12-SEP-13 14:00:00 (EST-5)
Location: LIBERTY
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees along Rt 414 near Liberty.

Thunderstorm Wind in CLEARFIELD, PENNSYLVANIA
From 12-SEP-13 12:22:00 to 12-SEP-13 12:22:00 (EST-5)
Location: STONACH
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees along the Curwensville-Grampian Highway (Rt 879) near Stonach.

Thunderstorm Wind in CLEARFIELD, PENNSYLVANIA
From 12-SEP-13 12:25:00 to 12-SEP-13 12:25:00 (EST-5)
Location: BRIDGEPORT
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: Fire Department/Rescue

Thunderstorm winds estimated near 60 mph knocked down trees along Windy Hill Road near Curwensville.

Thunderstorm Wind in CLEARFIELD, PENNSYLVANIA
From 12-SEP-13 12:35:00 to 12-SEP-13 12:35:00 (EST-5)
Location: BARRETT
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: Fire Department/Rescue

Thunderstorm winds estimated near 60 mph knocked down trees along Old Erie Pike near Barrett.

Thunderstorm Wind in CLEARFIELD, PENNSYLVANIA
From 12-SEP-13 12:36:00 to 12-SEP-13 12:36:00 (EST-5)
Location: BANIAN
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: Fire Department/Rescue

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires along Spruce Street in Madera.

Thunderstorm Wind in CLEARFIELD, PENNSYLVANIA
From 12-SEP-13 12:35:00 to 12-SEP-13 12:35:00 (EST-5)
Location: BIGLER
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: Fire Department/Rescue

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires along Bigler Road in Bigler.

Thunderstorm Wind in CENTRE, PENNSYLVANIA
From 12-SEP-13 13:20:00 to 12-SEP-13 13:20:00 (EST-5)
Location: CURTIN
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: Fire Department/Rescue

Thunderstorm winds estimated near 60 mph knocked down trees and utility wires along Jacksonville Road (Rt 26) in Zion.

Thunderstorm Wind in CENTRE, PENNSYLVANIA
From 12-SEP-13 13:20:00 to 12-SEP-13 13:20:00 (EST-5)
Location: WOODYCREST
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees along Circleville Road in State College.

Hail in YORK, PENNSYLVANIA
From 12-SEP-13 14:39:00 to 12-SEP-13 14:39:00 (EST-5)
Location: LAUREL
Magnitude: 0.75 
Reported by: Trained Spotter

Penny size hail (0.75 diameter) was reported near Felton.

Thunderstorm Wind in CENTRE, PENNSYLVANIA
From 12-SEP-13 13:25:00 to 12-SEP-13 13:25:00 (EST-5)
Location: STATE COLLEGE
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees at the Centre Hills Golf Course in Lemont.

Thunderstorm Wind in CLINTON, PENNSYLVANIA
From 12-SEP-13 13:30:00 to 12-SEP-13 13:30:00 (EST-5)
Location: SALONA
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees along Belle Springs Road in Mill Hall.

Thunderstorm Wind in FRANKLIN, PENNSYLVANIA
From 12-SEP-13 14:00:00 to 12-SEP-13 14:00:00 (EST-5)
Location: CHAMBERSBURG
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees and power lines down in Chambersburg.

Thunderstorm Wind in LYCOMING, PENNSYLVANIA
From 12-SEP-13 14:10:00 to 12-SEP-13 14:10:00 (EST-5)
Location: TROUT RUN
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: Fire Department/Rescue

Thunderstorm winds estimated near 60 mph knocked down trees in Trout Run.

Thunderstorm Wind in SNYDER, PENNSYLVANIA
From 12-SEP-13 14:15:00 to 12-SEP-13 14:15:00 (EST-5)
Location: BEAVERTOWN
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees in Beavertown.

Thunderstorm Wind in NORTHUMBERLAND, PENNSYLVANIA
From 12-SEP-13 14:17:00 to 12-SEP-13 14:17:00 (EST-5)
Location: WATSONTOWN
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees in Watsontown.

Thunderstorm Wind in SCHUYLKILL, PENNSYLVANIA
From 12-SEP-13 15:55:00 to 12-SEP-13 15:55:00 (EST-5)
Location: ORWIGSBURG
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: Social Media

Thunderstorm winds estimated near 60 mph knocked down trees along Brick Hill Road near Orwigsburg.

Thunderstorm Wind in YORK, PENNSYLVANIA
From 12-SEP-13 15:52:00 to 12-SEP-13 15:52:00 (EST-5)
Location: PLEASUREVILLE
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees on I-83 north of the Rt 30 interchange.

Thunderstorm Wind in COLUMBIA, PENNSYLVANIA
From 12-SEP-13 15:25:00 to 12-SEP-13 15:25:00 (EST-5)
Location: BERWICK
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees in Berwick.

Thunderstorm Wind in YORK, PENNSYLVANIA
From 12-SEP-13 15:40:00 to 12-SEP-13 15:40:00 (EST-5)
Location: WEST YORK
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down two grandstands at the York County Fairgrounds.

Thunderstorm Wind in YORK, PENNSYLVANIA
From 12-SEP-13 15:50:00 to 12-SEP-13 15:50:00 (EST-5)
Location: YORK
Magnitude: 50.00 EG
Property damage: 2.00K
Reported by: 911 Call Center

Thunderstorm winds estimated near 60 mph knocked down trees in York.

Thunderstorm Wind in YORK, PENNSYLVANIA
From 12-SEP-13 14:15:00 to 12-SEP-13 14:15:00 (EST-5)
Location: RED LION
Magnitude: 61.00 EG
Property damage: 10.00K
Reported by: Emergency Manager

Thunderstorm winds estimated near 70 mph knocked down a scoreboard and bent light poles at the Red Lion sports complex.