Showers and thunderstorms developed ahead of a cold front on the 4th of August. Modest instability and shear, considering the earlier onset of storm activity, resulted in several wind damage reports and some hail.

Hail in LAWRENCE, PENNSYLVANIA
From 04-AUG-17 17:05:00 to 04-AUG-17 17:05:00 (EST-5)
Location: ELLWOOD CITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 04-AUG-17 13:10:00 to 04-AUG-17 13:10:00 (EST-5)
Location: HICKORY
Magnitude: 50.00 EG
Property damage: 2.50K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported trees down.

Thunderstorm Wind in GREENE, PENNSYLVANIA
From 04-AUG-17 12:50:00 to 04-AUG-17 12:50:00 (EST-5)
Location: WIND RIDGE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported trees down on Poland Rd and Grange Rd.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 04-AUG-17 13:30:00 to 04-AUG-17 13:30:00 (EST-5)
Location: BETHEL PARK
Magnitude: 50.00 EG
Property damage: 2.50K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported trees and wires down.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 04-AUG-17 13:25:00 to 04-AUG-17 13:25:00 (EST-5)
Location: SYGAN
Magnitude: 50.00 EG
Property damage: 2.50K
Crop damage: 0.00K
Reported by: NWS Employee

NWS Employee reported trees down on Lakeview Dr.

Thunderstorm Wind in BUTLER, PENNSYLVANIA
From 04-AUG-17 13:57:00 to 04-AUG-17 13:57:00 (EST-5)
Location: EUCLID
Magnitude: 50.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported a large tree and wires down blocking Pry Rd.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 04-AUG-17 14:00:00 to 04-AUG-17 14:00:00 (EST-5)
Location: NATRONA
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: State Official

State official reported several trees down in Natrona Heights and Harrison Twp.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 04-AUG-17 14:00:00 to 04-AUG-17 14:00:00 (EST-5)
Location: NEWTONSBURG
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported several trees down in Murraysville.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 04-AUG-17 14:00:00 to 04-AUG-17 14:00:00 (EST-5)
Location: EDGECLIFF
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported several trees down in Lower Burrell and New Kensington.

Thunderstorm Wind in ARMSTRONG, PENNSYLVANIA
From 04-AUG-17 14:20:00 to 04-AUG-17 14:20:00 (EST-5)
Location: WEST FORD CITY
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported trees and wires down in Manor and Buffalo Townships.

Thunderstorm Wind in VENANGO, PENNSYLVANIA
From 04-AUG-17 14:30:00 to 04-AUG-17 14:30:00 (EST-5)
Location: CRANBERRY
Magnitude: 50.00 EG
Property damage: 2.50K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported multiple trees are down in Cranberry Twp.

Thunderstorm Wind in VENANGO, PENNSYLVANIA
From 04-AUG-17 14:30:00 to 04-AUG-17 14:30:00 (EST-5)
Location: PRESIDENT
Magnitude: 50.00 EG
Property damage: 2.50K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported multiple trees are down on President Rd.

Thunderstorm Wind in CLARION, PENNSYLVANIA
From 04-AUG-17 14:50:00 to 04-AUG-17 14:50:00 (EST-5)
Location: CLARION
Magnitude: 50.00 EG
Property damage: 2.50K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported trees down on wires in Paint Township.

Thunderstorm Wind in JEFFERSON, PENNSYLVANIA
From 04-AUG-17 15:07:00 to 04-AUG-17 15:07:00 (EST-5)
Location: BROOKVILLE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported trees down in the town of Brookville.

Thunderstorm Wind in JEFFERSON, PENNSYLVANIA
From 04-AUG-17 15:07:00 to 04-AUG-17 15:07:00 (EST-5)
Location: BROOKVILLE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: NWS Employee

NWS employee reported trees and power poles down.

Thunderstorm Wind in LAWRENCE, PENNSYLVANIA
From 04-AUG-17 17:05:00 to 04-AUG-17 17:05:00 (EST-5)
Location: ELLWOOD CITY
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported numerous trees and wires down.

Thunderstorm Wind in BUTLER, PENNSYLVANIA
From 04-AUG-17 17:30:00 to 04-AUG-17 17:30:00 (EST-5)
Location: PORTERSVILLE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported multiple trees and poles down on Bauder Mill Rd.

Thunderstorm Wind in GREENE, PENNSYLVANIA
From 04-AUG-17 17:40:00 to 04-AUG-17 17:40:00 (EST-5)
Location: POLAND MINES
Magnitude: 50.00 EG
Property damage: 2.50K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported trees down.

Thunderstorm Wind in BUTLER, PENNSYLVANIA
From 04-AUG-17 18:05:00 to 04-AUG-17 18:05:00 (EST-5)
Location: WINDWARD HGTS
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported multiple trees down in Butler Township.

Thunderstorm Wind in JEFFERSON, PENNSYLVANIA
From 04-AUG-17 19:04:00 to 04-AUG-17 19:04:00 (EST-5)
Location: BROOKVILLE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported trees down.

Thunderstorm Wind in JEFFERSON, PENNSYLVANIA
From 04-AUG-17 19:25:00 to 04-AUG-17 19:25:00 (EST-5)
Location: WORTHVILLE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported several trees down.

Thunderstorm Wind in JEFFERSON, PENNSYLVANIA
From 04-AUG-17 19:32:00 to 04-AUG-17 19:32:00 (EST-5)
Location: BROOKVILLE
Magnitude: 50.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported a metal roof blown off township building.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 04-AUG-17 13:48:00 to 04-AUG-17 13:48:00 (EST-5)
Location: CHURCHILL
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Two large trees snapped on the CCAC Boyce Campus.

Thunderstorm Wind in MERCER, PENNSYLVANIA
From 04-AUG-17 13:45:00 to 04-AUG-17 13:45:00 (EST-5)
Location: MAYSVILLE
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

The public reported a few trees down, as well as large branches and limbs.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 04-AUG-17 13:55:00 to 04-AUG-17 13:55:00 (EST-5)
Location: ARNOLA
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotter reported trees down at the corner of Freeport Rd and Woodbury Rd.

Thunderstorm Wind in JEFFERSON, PENNSYLVANIA
From 04-AUG-17 19:30:00 to 04-AUG-17 19:30:00 (EST-5)
Location: BROCKWAY
Magnitude: 50.00 EG
Property damage: 2.50K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported trees down.

Thunderstorm Wind in JEFFERSON, PENNSYLVANIA
From 04-AUG-17 19:44:00 to 04-AUG-17 19:44:00 (EST-5)
Location: REYNOLDSVILLE
Magnitude: 50.00 EG
Property damage: 2.50K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported trees down.

Thunderstorm Wind in GREENE, PENNSYLVANIA
From 04-AUG-17 12:45:00 to 04-AUG-17 12:45:00 (EST-5)
Location: NINEVEH
Magnitude: 50.00 EG
Property damage: 2.50K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported trees down on Grange Road.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 04-AUG-17 13:08:00 to 04-AUG-17 13:08:00 (EST-5)
Location: BURGETTSTOWN
Magnitude: 50.00 EG
Property damage: 2.50K
Crop damage: 0.00K
Reported by: 911 Call Center

Local 911 reported trees down.

Thunderstorm Wind in JEFFERSON, PENNSYLVANIA
From 04-AUG-17 15:00:00 to 04-AUG-17 15:00:00 (EST-5)
Location: SIGEL
Magnitude: 50.00 EG
Property damage: 8.00K
Crop damage: 0.00K
Reported by: State Official

Local 911 reported numerous trees down throughout the county.