Slow moving pulse storms created flash flooding conditions across the region. The storms developed in a very moist, buoyant environment where 2000-3000 J/kg SBCAPE and 1.7-1.9 inch PW values, supported very efficient rainfall rates. Shear profiles were weak from the low levels to 300mb and created a 'pulse-type' behavior.

Flash Flood in WESTMORELAND, PENNSYLVANIA
From 05-AUG-22 19:05:00 to 05-AUG-22 20:05:00 (EST-5)
Location: DENISON
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: County Official

Flash flooding was reported by the beer distributer and surrounding businesses on Sand Hill Rd by Route 30. A pick up truck was reported trapped by water and a water rescue occurred.

Flash Flood in ALLEGHENY, PENNSYLVANIA
From 05-AUG-22 17:20:00 to 05-AUG-22 18:20:00 (EST-5)
Location: ASPINWALL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Heavy rain caused Washington Boulevard to begin flooding and it was closed as a result.

Flash Flood in LAWRENCE, PENNSYLVANIA
From 05-AUG-22 17:55:00 to 05-AUG-22 20:55:00 (EST-5)
Location: HILLSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Officials reported numerous high water issues across Mahoning Township due to heavy rain. This resulted in multiple roads closed.

Flash Flood in WASHINGTON, PENNSYLVANIA
From 05-AUG-22 17:45:00 to 05-AUG-22 18:45:00 (EST-5)
Location: RICHEYVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Heavy rain created a landslide as well as a flooded roadway on Sunset Drive in the area of Hickory Road. Heavy rock and other debris reported on the roadway.

Flash Flood in WESTMORELAND, PENNSYLVANIA
From 05-AUG-22 19:42:00 to 05-AUG-22 21:42:00 (EST-5)
Location: HUMPHRIES
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: County Official

Heavy rain caused Humphreys Run to rise significantly and out of its banks. A couple feet of moving water flooded Route 130 by Nasters Food. Swift water rescue was performed by the food store. Video from the area showed multiple feet of water flowing around the business, parking lot, and surrounding area.

Flash Flood in WESTMORELAND, PENNSYLVANIA
From 05-AUG-22 18:50:00 to 05-AUG-22 21:50:00 (EST-5)
Location: MARGUERITE
Flood cause: Heavy Rain
Property damage: 200.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Received reports of extensive flooding across Unity Township, with Marguerite Lake Rd being significantly effected. Roadways and housing were reported to be inundated with high water. Additionally, a high water rescued occurred on Marguerite Lake Rd.

Flash Flood in ALLEGHENY, PENNSYLVANIA
From 05-AUG-22 17:40:00 to 05-AUG-22 18:40:00 (EST-5)
Location: WEST MIFFLIN
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Newspaper

Flooding was reported near the 2400 block of Lebanon Church Road and 400 block of Saintwood Drive. Additionally, several hours along Shady Ave were reported to be flooded.

Flash Flood in BUTLER, PENNSYLVANIA
From 05-AUG-22 18:00:00 to 05-AUG-22 18:00:00 (EST-5)
Location: CALLERY
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Flooding was reported at Rochester Rd and Route 19. Cars were stalled in the high water.

Flash Flood in BUTLER, PENNSYLVANIA
From 05-AUG-22 18:00:00 to 05-AUG-22 19:00:00 (EST-5)
Location: SLIPPERY ROCK
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Newspaper

Numerous spots were flooded throughout the town of Slippery Rock. A vehicle rescue also occurred on Arlington Drive from high water.

Flash Flood in WESTMORELAND, PENNSYLVANIA
From 05-AUG-22 19:40:00 to 05-AUG-22 21:40:00 (EST-5)
Location: STONEVILLA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy rain caused Slate Run to exceed bankfull and flood Slate Run Rd.

Flash Flood in WESTMORELAND, PENNSYLVANIA
From 05-AUG-22 20:00:00 to 05-AUG-22 21:00:00 (EST-5)
Location: LATROBE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Flooding occurred near Dorothy Patch off PA-981. Two individuals were rescued from high water.

Flash Flood in ALLEGHENY, PENNSYLVANIA
From 05-AUG-22 16:45:00 to 05-AUG-22 18:45:00 (EST-5)
Location: SHARPSBURG
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Officials reported that about the entire length of Freeport Road in Aspinwall was closed due to flash flooding.

Flash Flood in FAYETTE, PENNSYLVANIA
From 05-AUG-22 19:00:00 to 05-AUG-22 21:00:00 (EST-5)
Location: FILBERT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Multiple roadways were reported to be flooding due to high water.

Flash Flood in WASHINGTON, PENNSYLVANIA
From 05-AUG-22 17:45:00 to 05-AUG-22 18:45:00 (EST-5)
Location: BEALLSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Officials reported flooding in Beallsville, particularly by the Beallsville Rd and Main Street intersection.

Flash Flood in BUTLER, PENNSYLVANIA
From 05-AUG-22 18:00:00 to 05-AUG-22 19:00:00 (EST-5)
Location: SLIPPERY ROCK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

A swift water rescue took place on Kiester Rd due to flooding from heavy rain.