The leading edge of a trough initiated convection across the region during the early afternoon of August 29th. With little deep-layer wind shear available for quick storm motion, flash flooding occurred under warm, moist conditions (PWATs ranging 1.8 to 2.0 inches under prolonged southwest flow). A few storms were considered severe, knocking down trees, as updrafts escalated into cool, dry conditions aloft and created strong downdrafts.

Flash Flood in BEAVER, PENNSYLVANIA
From 29-AUG-22 14:52:00 to 29-AUG-22 15:52:00 (EST-5)
Location: COLONA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Heavy rain caused multiple streets in Monaca proper to flood.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 29-AUG-22 15:15:00 to 29-AUG-22 15:15:00 (EST-5)
Location: ARNOLA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A 911 Call Center reported wires down on 4th Ave.

Thunderstorm Wind in ARMSTRONG, PENNSYLVANIA
From 29-AUG-22 15:45:00 to 29-AUG-22 15:45:00 (EST-5)
Location: GOHEENVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A 911 Call Center reported tree down on State Route 1018 in Boggs Township.

Thunderstorm Wind in BEAVER, PENNSYLVANIA
From 29-AUG-22 12:40:00 to 29-AUG-22 12:40:00 (EST-5)
Location: DARLINGTON
Magnitude: 52.00 EG
Reported by: Social Media

Social media post of trees and wires down on Anderson Road.

Thunderstorm Wind in BEAVER, PENNSYLVANIA
From 29-AUG-22 12:50:00 to 29-AUG-22 12:50:00 (EST-5)
Location: COLONA
Magnitude: 52.00 EG
Reported by: Social Media

Social media post of trees down on roadway.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 29-AUG-22 15:00:00 to 29-AUG-22 15:00:00 (EST-5)
Location: RANKIN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A 911 Call Center reported tree down on wires.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 29-AUG-22 15:24:00 to 29-AUG-22 15:24:00 (EST-5)
Location: KISKIMINETAS JCT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A 911 Call Center reported tree down along Church Street.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 29-AUG-22 15:30:00 to 29-AUG-22 15:30:00 (EST-5)
Location: EAST VANDERGRIFT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A 911 Call Center reported tree down on Vandergrift Lane.

Thunderstorm Wind in ARMSTRONG, PENNSYLVANIA
From 29-AUG-22 15:35:00 to 29-AUG-22 15:35:00 (EST-5)
Location: ORCHARD HILLS
Magnitude: 52.00 EG
Reported by: 911 Call Center

A 911 Call Center reported tree down on Edmon Road.

Thunderstorm Wind in INDIANA, PENNSYLVANIA
From 29-AUG-22 16:02:00 to 29-AUG-22 16:02:00 (EST-5)
Location: SMICKSBURG
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A 911 Call Center reported trees down around Smicksburg.

Flash Flood in BEAVER, PENNSYLVANIA
From 29-AUG-22 14:55:00 to 29-AUG-22 15:55:00 (EST-5)
Location: FREEDOM
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Harvey Run Road near 8th street flooded.

Thunderstorm Wind in JEFFERSON, PENNSYLVANIA
From 29-AUG-22 16:23:00 to 29-AUG-22 16:23:00 (EST-5)
Location: PUNXSUTAWNEY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A 911 Call Center reported a few trees down in the city of Punxsutawney.