A mesoscale convective vortex ahead of a cold front over Lake Erie produced an area of thunderstorms with very heavy rainfall. Rainfall amounts across Beaver county reached more than 4 inches in 2 hours with reports of 2 to 3 inches in 2 hours common in other counties.

Flash Flood in ALLEGHENY, PENNSYLVANIA
From 05-JUL-07 11:46:00 to 05-JUL-07 14:00:00 (EST-5)
Location: GLENSHAW
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported roads closed in Shaler Township due to flash flooding.

Flash Flood in ALLEGHENY, PENNSYLVANIA
From 05-JUL-07 12:05:00 to 05-JUL-07 14:00:00 (EST-5)
Location: GLENSHAW
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported roads closed due to flash flooding in Ross Township.

Flash Flood in ARMSTRONG, PENNSYLVANIA
From 05-JUL-07 12:43:00 to 05-JUL-07 15:00:00 (EST-5)
Location: MAYSVILLE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported water street closed due to flash flooding south of Maysville.

Flash Flood in WESTMORELAND, PENNSYLVANIA
From 05-JUL-07 13:05:00 to 05-JUL-07 13:30:00 (EST-5)
Location: LATROBE
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported water in homes and streets closed due to flash flooding.

Flash Flood in INDIANA, PENNSYLVANIA
From 05-JUL-07 13:15:00 to 05-JUL-07 15:00:00 (EST-5)
Location: CLARKSBURG
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported roads closed in Saltsburg due to flash flooding.

Flash Flood in WASHINGTON, PENNSYLVANIA
From 05-JUL-07 13:09:00 to 05-JUL-07 15:30:00 (EST-5)
Location: WASHINGTON
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported RT 18 1 mile north of I-70 closed due to flash flooding with Catfish Creek out of its banks.

Flash Flood in WESTMORELAND, PENNSYLVANIA
From 05-JUL-07 13:30:00 to 05-JUL-07 13:45:00 (EST-5)
Location: AVONMORE
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported that roads were closed in Avonmore with small streams out of their banks.

Flash Flood in FAYETTE, PENNSYLVANIA
From 05-JUL-07 14:25:00 to 05-JUL-07 16:30:00 (EST-5)
Location: CONNELLSVILLE
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported roads closed and water in some homes due to flash flooding.

Flood in BEAVER, PENNSYLVANIA
From 05-JUL-07 14:00:00 to 05-JUL-07 17:00:00 (EST-5)
Location: ALIQUIPPA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported standing water on roads in Aliquippa and Monaca as well as surrounding towns. The water was slowly receding.

Thunderstorm Wind in MERCER, PENNSYLVANIA
From 05-JUL-07 15:00:00 to 05-JUL-07 15:00:00 (EST-5)
Location: SANDY LAKE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees down in the Sandy Lake and Stoneboro areas.

Flash Flood in BEAVER, PENNSYLVANIA
From 05-JUL-07 11:25:00 to 05-JUL-07 14:00:00 (EST-5)
Location: ALIQUIPPA
Flood cause: Heavy Rain
Property damage: 10.00M
Crop damage: 0.00K
Reported by: NWS Employee

A retired NWS employee reported flash flooding in Aliquippa, Monaca, and surrounding towns from rainfall of 3 to over 4 inches in 2 hours. Over 500 buildings and homes sustained damage across Beaver county with around 50 families displaced from homes.

Flash Flood in BEAVER, PENNSYLVANIA
From 05-JUL-07 12:06:00 to 05-JUL-07 14:00:00 (EST-5)
Location: INDUSTRY
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported State Road 68 was closed due to flash flooding between Industry and Midland.

Flood in ALLEGHENY, PENNSYLVANIA
From 05-JUL-07 14:00:00 to 05-JUL-07 17:00:00 (EST-5)
Location: GLENSHAW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Flooding continued across Shaler and Ross townships with standing water across roads slowly receding.