Showers and thunderstorms developed ahead of a pre-frontal trough that was pivoting across the region. With modest instability and shear, several storms produced damaging winds, bringing trees down across eastern Ohio and western Pennsylvania.

Thunderstorm Wind in LAWRENCE, PENNSYLVANIA
From 11-MAY-15 19:08:00 to 11-MAY-15 19:08:00 (EST-5)
Location: MC OASLIN
Magnitude: 50.00 EG
Property damage: 0.25K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported a tree down near McCaslin.

Thunderstorm Wind in LAWRENCE, PENNSYLVANIA
From 11-MAY-15 19:09:00 to 11-MAY-15 19:09:00 (EST-5)
Location: NEW CASTLE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 center reported multiple trees down.

Thunderstorm Wind in LAWRENCE, PENNSYLVANIA
From 11-MAY-15 18:58:00 to 11-MAY-15 18:58:00 (EST-5)
Location: ENON
Magnitude: 50.00 EG
Property damage: 0.25K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported a tree down.

Thunderstorm Wind in LAWRENCE, PENNSYLVANIA
From 11-MAY-15 19:14:00 to 11-MAY-15 19:14:00 (EST-5)
Location: NASHUA
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported multiple trees down.

Thunderstorm Wind in LAWRENCE, PENNSYLVANIA
From 11-MAY-15 19:15:00 to 11-MAY-15 19:15:00 (EST-5)
Location: NEW WILMINGTON
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local emergency operations center reported multiple trees down.

Thunderstorm Wind in MERCER, PENNSYLVANIA
From 11-MAY-15 19:15:00 to 11-MAY-15 19:15:00 (EST-5)
Location: BETHEL
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local emergency operations center reported multiple trees and wires down near in Bethel.

Thunderstorm Wind in LAWRENCE, PENNSYLVANIA
From 11-MAY-15 19:18:00 to 11-MAY-15 19:18:00 (EST-5)
Location: PLAIN GROVE
Magnitude: 50.00 EG
Property damage: 0.25K
Crop damage: 0.00K
Reported by: 911 Call Center

Local emergency operations center reported a tree down.

Thunderstorm Wind in LAWRENCE, PENNSYLVANIA
From 11-MAY-15 19:19:00 to 11-MAY-15 19:19:00 (EST-5)
Location: PLAIN GROVE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 center reported multiple trees down.

Thunderstorm Wind in MERCER, PENNSYLVANIA
From 11-MAY-15 19:24:00 to 11-MAY-15 19:24:00 (EST-5)
Location: HENLEIN
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 center reported multiple trees and wires down.

Thunderstorm Wind in MERCER, PENNSYLVANIA
From 11-MAY-15 19:32:00 to 11-MAY-15 19:32:00 (EST-5)
Location: GROVE CITY
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 center reported multiple trees and wires down.

Thunderstorm Wind in VENANGO, PENNSYLVANIA
From 11-MAY-15 19:38:00 to 11-MAY-15 19:38:00 (EST-5)
Location: CLINTONVILLE
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local emergency operations center reported three trees down in Clintonville.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 11-MAY-15 19:46:00 to 11-MAY-15 19:46:00 (EST-5)
Location: MOON CREST
Magnitude: 50.00 EG
Property damage: 0.25K
Crop damage: 0.00K
Reported by: Public

The public reported one tree down in Moon Crest.

Thunderstorm Wind in VENANGO, PENNSYLVANIA
From 11-MAY-15 19:49:00 to 11-MAY-15 19:49:00 (EST-5)
Location: FRANKLIN
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local emergency operations center reported multiple trees down near Franklin.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 11-MAY-15 19:50:00 to 11-MAY-15 19:50:00 (EST-5)
Location: SEWICKLEY
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 call center reported a large tree blocking road on 105 Ohio River Boulevard.

Thunderstorm Wind in VENANGO, PENNSYLVANIA
From 11-MAY-15 19:54:00 to 11-MAY-15 19:54:00 (EST-5)
Location: SENECA
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local emergency operations center reported multiple trees down around Seneca.

Thunderstorm Wind in VENANGO, PENNSYLVANIA
From 11-MAY-15 19:59:00 to 11-MAY-15 19:59:00 (EST-5)
Location: OIL CITY
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local emergency operations center reported multiple trees down in Oil City.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 11-MAY-15 20:01:00 to 11-MAY-15 20:01:00 (EST-5)
Location: WHITAKER
Magnitude: 50.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 call center reported a large tree down and high tension wires down.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 11-MAY-15 20:04:00 to 11-MAY-15 20:04:00 (EST-5)
Location: MILESVILLE
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 call center reported a tree down on Ella Hollow Road and Wise Lane.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 11-MAY-15 20:11:00 to 11-MAY-15 20:11:00 (EST-5)
Location: WILKINSBURG
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 call center reported a tree down near Forest Hills.

Thunderstorm Wind in VENANGO, PENNSYLVANIA
From 11-MAY-15 20:11:00 to 11-MAY-15 20:11:00 (EST-5)
Location: PLEASANTVILLE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local emergency operations center reported multiple trees down near Pleasantville.

Thunderstorm Wind in CLARION, PENNSYLVANIA
From 11-MAY-15 20:20:00 to 11-MAY-15 20:20:00 (EST-5)
Location: LICKINGVILLE
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Park service reported a tree down on Route 66 near Lucinda.

Thunderstorm Wind in VENANGO, PENNSYLVANIA
From 11-MAY-15 19:54:00 to 11-MAY-15 19:54:00 (EST-5)
Location: CRANBERRY
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local emergency operations center reported multiple trees down around Cranberry.