A thunderstorm complex that developed in conjunction with a strengthening surface low over northern Indiana propagated westward towards the region late on the 12th. Out ahead of this system, strong speed shear and instability contributed to supercellular development along a warm frontal boundary that bisected the region. Several reports of large hail and damaging winds were reported before the bow echo reached eastern Ohio very early on the 13th. This bow echo, with a history of widespread wind damage, then crossed through the forecast area through 6am, causing several reports of downed trees and wires through much of eastern Ohio, northern West Virginia, and southwestern Pennsylvania.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 03:36:00 to 13-JUN-13 03:36:00 (EST-5)
Location: CASTLE SHANNON
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Local law enforcement reported a tree down blocking Gilkeson Road.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 04:30:00 to 13-JUN-13 04:30:00 (EST-5)
Location: DORMONT
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: State Official

State official reported a lane restriction at the intersection of Route 51 and Whited Street.

Thunderstorm Wind in MERCER, PENNSYLVANIA
From 13-JUN-13 03:07:00 to 13-JUN-13 03:07:00 (EST-5)
Location: WEST MIDDLESEX
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: State Official

State official reported trees down in Shenango Township.

Thunderstorm Wind in BUTLER, PENNSYLVANIA
From 13-JUN-13 03:20:00 to 13-JUN-13 03:20:00 (EST-5)
Location: CRIDERS CORNERS
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: State Official

State official reported trees down in Adams Township.

Thunderstorm Wind in GREENE, PENNSYLVANIA
From 13-JUN-13 03:20:00 to 13-JUN-13 03:20:00 (EST-5)
Location: RYERSON STATION
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: State Official

State official reported trees and power lines down in and around Richhill Township along Route 88 south.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 03:33:00 to 13-JUN-13 03:33:00 (EST-5)
Location: EDGEWOOD
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Broadcast media reported a tree down on Beechwood Boulevard.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 03:30:00 to 13-JUN-13 03:30:00 (EST-5)
Location: BEN AVON
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Broadcast media reported downed trees and power lines blocking Stonelea and Hiawatha Streets.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 03:30:00 to 13-JUN-13 03:30:00 (EST-5)
Location: AVALON
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Broadcast media reported large trees down over roadway.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 03:33:00 to 13-JUN-13 03:33:00 (EST-5)
Location: SHARPSBURG
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Broadcast media reported a tree blocking roadway at the intersection of Butler and Baker Streets.

Thunderstorm Wind in FAYETTE, PENNSYLVANIA
From 13-JUN-13 04:20:00 to 13-JUN-13 04:20:00 (EST-5)
Location: FARMINGTON
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Fayette County emergency management director reported a 1/2 to 1 mile swath of trees down near Farmington in the area of State Route 381 and Rankin Road. The director stated the damage was due to straight line winds.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 13-JUN-13 03:51:00 to 13-JUN-13 03:51:00 (EST-5)
Location: NORTH IRWIN
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

A member of the public submitted a picture of a 7 to 8 inch diameter tree snapped.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 13-JUN-13 04:01:00 to 13-JUN-13 04:01:00 (EST-5)
Location: GREENSBURG
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: State Official

State official reported a house damaged by downed tree. Also, several trees were reported down in and around Greensburg.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 03:33:00 to 13-JUN-13 03:33:00 (EST-5)
Location: ETNA
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Broadcast media reported a tree down blocking Mount Royal Boulevard.

Thunderstorm Wind in BUTLER, PENNSYLVANIA
From 13-JUN-13 03:10:00 to 13-JUN-13 03:10:00 (EST-5)
Location: HARMONY
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Public

The public reported several trees down southeast of Zelienople.

Flood in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 04:26:00 to 13-JUN-13 09:00:00 (EST-5)
Location: ELIZABETH
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: State Official

State official reported flooding along Irwin Street in Elizabeth.

Flood in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 04:26:00 to 13-JUN-13 09:00:00 (EST-5)
Location: ELIZABETH
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: State Official

State official reported that the intersection of Route 51 and Route 837 in Elizabeth was closed due to flooding.

Flood in WESTMORELAND, PENNSYLVANIA
From 13-JUN-13 04:33:00 to 13-JUN-13 09:00:00 (EST-5)
Location: MARKVUE MANOR
Flood cause: Heavy Rain
Property damage: 8.00K
Crop damage: 0.00K
Reported by: State Official

State official reported that Jacks Run Creek was flooding at the intersection of Lincoln Way and Five Pines Road in North Huntington Township.

Flood in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 04:35:00 to 13-JUN-13 09:00:00 (EST-5)
Location: OPTION
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: State Official

State official reported that Becks Run Road was closed due to flooding.

Flood in WESTMORELAND, PENNSYLVANIA
From 13-JUN-13 04:40:00 to 13-JUN-13 09:00:00 (EST-5)
Location: STONEVILLA
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: State Official

State official reported minor flooding in the Greensburg/Hempfield area along Pellis Road.

Flood in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 05:15:00 to 13-JUN-13 07:40:00 (EST-5)
Location: WEST ELIZABETH
Flood cause: Heavy Rain
Property damage: 2.00K
Crop damage: 0.00K
Reported by: State Official

State official reported that debris washed up along the roadway near Riverview Drive and Walton Road in Jefferson Hills Borough.

Flood in WESTMORELAND, PENNSYLVANIA
From 13-JUN-13 06:00:00 to 13-JUN-13 09:00:00 (EST-5)
Location: CRIBB
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management in Hempfield Township reported that they closed Cribb Station Road between Route 136 and Middletown Road due to flooding.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 13-JUN-13 03:28:00 to 13-JUN-13 03:28:00 (EST-5)
Location: WASHINGTON CO ARPT
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: State Official

State official reported multiple trees down along route 18.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 13-JUN-13 03:36:00 to 13-JUN-13 03:36:00 (EST-5)
Location: EIGHTY FOUR
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: State Official

State official reported trees and wires down at the intersection of Route 519 and 136.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 02:00:00 to 13-JUN-13 02:00:00 (EST-5)
Location: MC KEES ROCKS
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Post Office

Local Post Office reported numerous trees down.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 02:36:00 to 13-JUN-13 02:36:00 (EST-5)
Location: FOREST GROVE
Magnitude: 50.00 EG
Property damage: 2.50K
Crop damage: 0.00K
Reported by: Law Enforcement

Local law enforcement reported a utility pole cracked in half and wires down near Kennedy Township.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 03:10:00 to 13-JUN-13 03:10:00 (EST-5)
Location: BEN AVON
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported a tree down blocking Elizabeth and California Avenues.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 03:20:00 to 13-JUN-13 03:20:00 (EST-5)
Location: MC KEES ROCKS
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Public

The public reported trees down.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 03:25:00 to 13-JUN-13 03:25:00 (EST-5)
Location: PITTOCK
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down on roadway at Speer Drive and Woodland Drive.

Flood in WESTMORELAND, PENNSYLVANIA
From 13-JUN-13 05:18:00 to 13-JUN-13 07:18:00 (EST-5)
Location: GREENSBURG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

State official reported minor road flooding in the city of Greensburg.

Flood in ALLEGHENY, PENNSYLVANIA
From 13-JUN-13 03:49:00 to 13-JUN-13 09:00:00 (EST-5)
Location: BRENTWOOD
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported that Saw Mill Run was out of its banks with water coming onto roadway.

Flood in WESTMORELAND, PENNSYLVANIA
From 13-JUN-13 04:00:00 to 13-JUN-13 09:00:00 (EST-5)
Location: EAST VANDERGRIFT
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

The public reported flooded yards and water in at least one basement.

Thunderstorm Wind in FAYETTE, PENNSYLVANIA
From 13-JUN-13 04:20:00 to 13-JUN-13 04:20:00 (EST-5)
Location: FARMINGTON
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Fayette County emergency management director reported a 1/2 to 1 mile swath of trees down near Farmington in the area of State Route 381 and Rankin Road. The director stated the damage was due to straight line winds.