A line of severe thunderstorms associated with a stalled cold front moved over eastern Ohio, southwestern Pennsylvania and the northern West Virginia Panhandle. These thunderstorms produced damaging straight line winds that caused numerous toppled and snapped trees as well as downed power lines that left an estimated 100 thousand people without power across the region. In Ohio, the hardest hit counties were Harrison and Jefferson, where a tractor trailer was overturned on Route 43. Allegheny and Westmoreland counties in western Pennsylvania were also hit hard.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 22-SEP-10 15:51:00 to 22-SEP-10 15:51:00 (EST-5)
Location: LATROBE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

The public reports trees down in Latrobe.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 22-SEP-10 15:59:00 to 22-SEP-10 15:59:00 (EST-5)
Location: LIGONIER
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Fire Department reports numerous trees down in Ligonier.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 22-SEP-10 15:55:00 to 22-SEP-10 15:55:00 (EST-5)
Location: STAHLSTOWN
Magnitude: 60.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Employee

A National Weather Service employee reports trees uprooted in Stahlstown.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 22-SEP-10 15:20:00 to 22-SEP-10 15:20:00 (EST-5)
Location: BETHEL PARK
Magnitude: 59.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reports an estimated 68 mph wind gust in Bethel Park.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 22-SEP-10 15:06:00 to 22-SEP-10 15:06:00 (EST-5)
Location: BRIDGEVILLE
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Fire department/rescue reported numerous trees down in Bridgeville.

Hail in JEFFERSON, PENNSYLVANIA
From 22-SEP-10 13:25:00 to 22-SEP-10 13:25:00 (EST-5)
Location: BROCKWAY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 22-SEP-10 15:05:00 to 22-SEP-10 15:05:00 (EST-5)
Location: MT LEBANON
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reports a tree blown into a house in Mount Lebanon.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 22-SEP-10 15:15:00 to 22-SEP-10 15:15:00 (EST-5)
Location: BETHEL PARK
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

The public reported large branches broken in Bethel Park.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 22-SEP-10 15:30:00 to 22-SEP-10 15:30:00 (EST-5)
Location: COCHRANS MILL
Magnitude: 60.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported trees uprooted at the intersection of Snowden Road and Station Street.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 22-SEP-10 15:30:00 to 22-SEP-10 15:30:00 (EST-5)
Location: RILLTON
Magnitude: 60.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The emergency manager reports widespread tree damage on Guffey-Rillton Road and tops of trees snapped of in the town of Rillton.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 22-SEP-10 15:40:00 to 22-SEP-10 15:40:00 (EST-5)
Location: CANONSBURG
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

The public reports trees down in Canonsburg.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 22-SEP-10 15:45:00 to 22-SEP-10 15:45:00 (EST-5)
Location: NORVELT
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: NWS Employee

A National Weather Service employee reports numerous trees down in Norvelt.