Showers and thunderstorms, some of which became severe, developed along a stalled boundary of the region on the 9th. These storms, supported by an upper level shortwave and increased instability, moved along the boundary and produced wind damage and hail to portions of eastern Ohio, northern West Virginia, and western Pennsylvania.

Thunderstorm Wind in LAWRENCE, PENNSYLVANIA
From 09-AUG-12 18:10:00 to 09-AUG-12 18:10:00 (EST-5)
Location: MC OASLIN
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported a tree on a mobile home. No injuries were reported.

Thunderstorm Wind in VENANGO, PENNSYLVANIA
From 09-AUG-12 19:40:00 to 09-AUG-12 19:40:00 (EST-5)
Location: VENUS
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: State Official

State official reported trees down.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 09-AUG-12 19:54:00 to 09-AUG-12 19:54:00 (EST-5)
Location: JOFFRE
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: State Official

State official reported trees down.

Thunderstorm Wind in FOREST, PENNSYLVANIA
From 09-AUG-12 18:23:00 to 09-AUG-12 18:23:00 (EST-5)
Location: TIONESTA
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees down.

Thunderstorm Wind in VENANGO, PENNSYLVANIA
From 09-AUG-12 17:50:00 to 09-AUG-12 17:50:00 (EST-5)
Location: POLK JCT
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees down.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 09-AUG-12 20:04:00 to 09-AUG-12 20:04:00 (EST-5)
Location: FAYETTEVILLE
Magnitude: 50.00 EG
Property damage: 0.25K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported large branches down.

Hail in FAYETTE, PENNSYLVANIA
From 09-AUG-12 12:20:00 to 09-AUG-12 12:20:00 (EST-5)
Location: WHITE BRIDGE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in FAYETTE, PENNSYLVANIA
From 09-AUG-12 12:36:00 to 09-AUG-12 12:36:00 (EST-5)
Location: MILL RUN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in LAWRENCE, PENNSYLVANIA
From 09-AUG-12 16:35:00 to 09-AUG-12 16:35:00 (EST-5)
Location: PULASKI
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in VENANGO, PENNSYLVANIA
From 09-AUG-12 18:04:00 to 09-AUG-12 18:04:00 (EST-5)
Location: SENECA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in VENANGO, PENNSYLVANIA
From 09-AUG-12 18:09:00 to 09-AUG-12 18:09:00 (EST-5)
Location: OIL CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LAWRENCE, PENNSYLVANIA
From 09-AUG-12 18:14:00 to 09-AUG-12 18:14:00 (EST-5)
Location: NEW CASTLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in MERCER, PENNSYLVANIA
From 09-AUG-12 16:45:00 to 09-AUG-12 16:45:00 (EST-5)
Location: WEST MIDDLESEX
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: County Official

County official reported multiple trees down.

Thunderstorm Wind in MERCER, PENNSYLVANIA
From 09-AUG-12 16:45:00 to 09-AUG-12 16:45:00 (EST-5)
Location: HERMITAGE
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: County Official

County official reported trees down.

Thunderstorm Wind in MERCER, PENNSYLVANIA
From 09-AUG-12 16:55:00 to 09-AUG-12 16:55:00 (EST-5)
Location: FREDONIA
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported trees down.

Thunderstorm Wind in MERCER, PENNSYLVANIA
From 09-AUG-12 17:10:00 to 09-AUG-12 17:10:00 (EST-5)
Location: MERCER
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported trees down.

Thunderstorm Wind in VENANGO, PENNSYLVANIA
From 09-AUG-12 18:04:00 to 09-AUG-12 18:04:00 (EST-5)
Location: CRANBERRY
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported trees down.

Thunderstorm Wind in LAWRENCE, PENNSYLVANIA
From 09-AUG-12 18:09:00 to 09-AUG-12 18:09:00 (EST-5)
Location: MC OASLIN
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Broadcast media reported trees and power lines down.

Thunderstorm Wind in VENANGO, PENNSYLVANIA
From 09-AUG-12 17:45:00 to 09-AUG-12 17:45:00 (EST-5)
Location: POLK JCT
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees down.

Thunderstorm Wind in VENANGO, PENNSYLVANIA
From 09-AUG-12 18:00:00 to 09-AUG-12 18:00:00 (EST-5)
Location: FRANKLIN
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees down.