Three separate mesoscale convective systems moved across Southeast Ohio, Western Pennsylvania, Northern West Virginia, and Garrett county Maryland. Widespread wind damage, flash flooding, and an EF0 tornado occurred during the event. The tornado touched down in the West End of Pittsburgh. Significant flash flooding occurred in Millvale in Allegheny county.

Tornado in ALLEGHENY, PENNSYLVANIA
From 09-AUG-07 13:50:00 to 09-AUG-07 13:51:00 (EST-5)
Location: OPTION
Tornado F-scale: EF0
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An NWS Survey found and EF0 tornado touched down in the West End area of Pittsburgh affecting areas along Toledo, Municipal, and Greenway Streets. Numerous trees were snapped and power lines were down. There was some structural damage to a few homes and buildings. Maximum estimated winds were 85 MPH.

Flash Flood in ALLEGHENY, PENNSYLVANIA
From 09-AUG-07 14:20:00 to 09-AUG-07 16:15:00 (EST-5)
Location: MILLVALE
Flood cause: Heavy Rain
Property damage: 15.00M
Crop damage: 0.00K
Reported by: Emergency Manager

Heavy rain caused flash flooding in the Millvale area and much of the North Hills area of Pittsburgh as Girtys Run came out of it's banks. Over 900 homes were affected by the flooding as well as over 200 businesses. Infrasturcture owned by local municipalities sustained over 4 million dollars in damage.

Flash Flood in BEAVER, PENNSYLVANIA
From 09-AUG-07 18:00:00 to 09-AUG-07 20:00:00 (EST-5)
Location: ALIQUIPPA
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported flash flooding along Route 51 between the Aliquippa bridge and Monaca.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 09-AUG-07 07:00:00 to 09-AUG-07 07:00:00 (EST-5)
Location: NATRONA HGTS
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported numerous trees and power lines down.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 09-AUG-07 07:35:00 to 09-AUG-07 07:35:00 (EST-5)
Location: LOWER BURRELL
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported widespread trees down across Lower Burrell.

Thunderstorm Wind in ARMSTRONG, PENNSYLVANIA
From 09-AUG-07 07:45:00 to 09-AUG-07 07:45:00 (EST-5)
Location: LOOKABOUGH CORNERS
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees and power lines down northeast of Leechburg.

Thunderstorm Wind in INDIANA, PENNSYLVANIA
From 09-AUG-07 08:15:00 to 09-AUG-07 08:15:00 (EST-5)
Location: WHITE
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported numerous trees down in the Saltsburg and  Clarksburg areas.

Thunderstorm Wind in LAWRENCE, PENNSYLVANIA
From 09-AUG-07 18:20:00 to 09-AUG-07 18:20:00 (EST-5)
Location: PLEASANT HILL
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees down north of Ellwood City.

Thunderstorm Wind in GREENE, PENNSYLVANIA
From 09-AUG-07 18:50:00 to 09-AUG-07 18:50:00 (EST-5)
Location: FORDYCE
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Public

Public reported trees and large limbs down east of Waynesburg.

Thunderstorm Wind in FAYETTE, PENNSYLVANIA
From 09-AUG-07 19:20:00 to 09-AUG-07 19:20:00 (EST-5)
Location: CONNELLSVILLE
Magnitude: 50.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported numerous trees down in Connellsville and across northern and eastern part of the county.

Thunderstorm Wind in GREENE, PENNSYLVANIA
From 09-AUG-07 13:30:00 to 09-AUG-07 13:30:00 (EST-5)
Location: WAYNESBURG
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees down on RT 218 in Waynesburg.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 09-AUG-07 08:25:00 to 09-AUG-07 08:25:00 (EST-5)
Location: MURRYSVILLE
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported numerous trees and power lines down in  Murrysville and near Export.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 09-AUG-07 14:40:00 to 09-AUG-07 14:40:00 (EST-5)
Location: MT HERMAN
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees and wires down in Amwell Township.

Thunderstorm Wind in GREENE, PENNSYLVANIA
From 09-AUG-07 15:00:00 to 09-AUG-07 15:00:00 (EST-5)
Location: MORRISVILLE
Magnitude: 50.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported numerous trees and large branches down in Waynesburg and across the county.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 09-AUG-07 15:00:00 to 09-AUG-07 15:00:00 (EST-5)
Location: LATROBE
Magnitude: 50.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees down in Latrobe and countywide.

Thunderstorm Wind in LAWRENCE, PENNSYLVANIA
From 09-AUG-07 17:35:00 to 09-AUG-07 17:35:00 (EST-5)
Location: DUCK RUN
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees down north of Ellwood City.

Thunderstorm Wind in BEAVER, PENNSYLVANIA
From 09-AUG-07 13:30:00 to 09-AUG-07 13:30:00 (EST-5)
Location: BEAVER
Magnitude: 50.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees down in the town of Beaver and in much of the county.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 09-AUG-07 14:20:00 to 09-AUG-07 14:20:00 (EST-5)
Location: WASHINGTON
Magnitude: 50.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees down in Washington and across the county.

Thunderstorm Wind in FAYETTE, PENNSYLVANIA
From 09-AUG-07 13:45:00 to 09-AUG-07 13:45:00 (EST-5)
Location: UNIONTOWN
Magnitude: 50.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees and wires down in Uniontown and across the county.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 09-AUG-07 13:55:00 to 09-AUG-07 13:55:00 (EST-5)
Location: HIGHCLIFF
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees and power lines down near the Ross Park Mall.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 09-AUG-07 14:20:00 to 09-AUG-07 14:20:00 (EST-5)
Location: CECIL
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported structural damage to buildings around Cecil.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 09-AUG-07 14:35:00 to 09-AUG-07 14:35:00 (EST-5)
Location: MT PLEASANT
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

Public reported large branches down in Mount Pleasant.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 09-AUG-07 14:35:00 to 09-AUG-07 14:35:00 (EST-5)
Location: LATROBE
Magnitude: 50.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported several trees and power lines down in Latrobe.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 09-AUG-07 18:00:00 to 09-AUG-07 18:00:00 (EST-5)
Location: SHALECREST
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees and wires down in Shaler TWP.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 09-AUG-07 18:10:00 to 09-AUG-07 18:10:00 (EST-5)
Location: ROSEDALE
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees down in Penn Hills.

Thunderstorm Wind in BEAVER, PENNSYLVANIA
From 09-AUG-07 17:50:00 to 09-AUG-07 17:50:00 (EST-5)
Location: BEAVER FALLS
Magnitude: 50.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Newspaper

Newspaper reported trees down on RT 588 northeast of Beaver Falls.

Flash Flood in ALLEGHENY, PENNSYLVANIA
From 09-AUG-07 18:07:00 to 09-AUG-07 20:00:00 (EST-5)
Location: WILKINSBURG
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported flash flooding closing some roads in Wilkinsburg.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 09-AUG-07 14:14:00 to 09-AUG-07 14:14:00 (EST-5)
Location: OPTION
Magnitude: 50.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Amateur radio reported trees down on East Carson Street as well as in  the vicinity of Forbes and Braddock.

Flash Flood in WESTMORELAND, PENNSYLVANIA
From 09-AUG-07 15:00:00 to 09-AUG-07 18:00:00 (EST-5)
Location: LATROBE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported flash flooding closing roads in Latrobe.

Flash Flood in FAYETTE, PENNSYLVANIA
From 09-AUG-07 15:00:00 to 09-AUG-07 16:30:00 (EST-5)
Location: LEITH
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported flash flooding closing roads in Uniontown.

Flash Flood in BEAVER, PENNSYLVANIA
From 09-AUG-07 14:40:00 to 09-AUG-07 16:10:00 (EST-5)
Location: ALIQUIPPA
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported flash flooding closing Route 18 between Greengarden RD and Route 151.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 09-AUG-07 14:00:00 to 09-AUG-07 14:00:00 (EST-5)
Location: PITTSBURGH
Magnitude: 74.00 EG
Property damage: 250.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A microburst hit the Uptown section of Pittsburgh with damage from along Fifth Street to Moultrie Street. Numerous buildings had structural damage with walls of several buildings collapsed and roofs torn off. Several buildings also has windows broken and siding torn off. Trees were also snapped off. The damage extended for about 700 yards and was 400 yards wide.

Thunderstorm Wind in FAYETTE, PENNSYLVANIA
From 09-AUG-07 15:00:00 to 09-AUG-07 15:00:00 (EST-5)
Location: UNIONTOWN
Magnitude: 50.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees down in Uniontown and in several other spots in the county.

Flash Flood in BEAVER, PENNSYLVANIA
From 09-AUG-07 15:00:00 to 09-AUG-07 17:00:00 (EST-5)
Location: ALIQUIPPA
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported flash flooding on RT 51 closing the road between the Aliquippa Bridge and Monaca.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 09-AUG-07 15:03:00 to 09-AUG-07 15:03:00 (EST-5)
Location: GREENSBURG
Magnitude: 50.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Amateur radio reported trees down in Greensburg.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 09-AUG-07 18:50:00 to 09-AUG-07 18:50:00 (EST-5)
Location: MARIANNA
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported trees down around Marianna.

Flash Flood in ALLEGHENY, PENNSYLVANIA
From 09-AUG-07 07:50:00 to 09-AUG-07 09:00:00 (EST-5)
Location: VERONA
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public

Public reported streams over roads and bridges in Verona.

Flash Flood in ALLEGHENY, PENNSYLVANIA
From 09-AUG-07 08:15:00 to 09-AUG-07 09:30:00 (EST-5)
Location: SHALECREST
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported Girtys Run creek is out of its banks and flooding  portions of Babcock Blvd and other roads in the area.

Flash Flood in WESTMORELAND, PENNSYLVANIA
From 09-AUG-07 08:15:00 to 09-AUG-07 08:45:00 (EST-5)
Location: FORBES ROAD
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 1.50 inches of rainfall in 45 minutes. Flooding was reported along South Main Street.

Flash Flood in FAYETTE, PENNSYLVANIA
From 09-AUG-07 19:00:00 to 09-AUG-07 22:00:00 (EST-5)
Location: CONNELLSVILLE
Flood cause: Heavy Rain
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Public

Public reported several roads closed due to flash flooding in Connellsville.

Flash Flood in FAYETTE, PENNSYLVANIA
From 09-AUG-07 19:00:00 to 09-AUG-07 21:00:00 (EST-5)
Location: NEWELL
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported water in a home due to flash flooding in Newell.

Flash Flood in WESTMORELAND, PENNSYLVANIA
From 09-AUG-07 08:25:00 to 09-AUG-07 10:25:00 (EST-5)
Location: EXPORT
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported widespread flash flooding in both Export and Murrysville areas.

Flash Flood in INDIANA, PENNSYLVANIA
From 09-AUG-07 09:00:00 to 09-AUG-07 10:00:00 (EST-5)
Location: BLAIRSVILLE
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported flash flooding on RT 22 closing the highway.

Hail in ALLEGHENY, PENNSYLVANIA
From 09-AUG-07 14:05:00 to 09-AUG-07 14:05:00 (EST-5)
Location: PITTSBURGH
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Public

The public reported hail of 1.00 inch diameter in Pittsburgh.

Hail in FAYETTE, PENNSYLVANIA
From 09-AUG-07 16:25:00 to 09-AUG-07 16:25:00 (EST-5)
Location: MASONTOWN
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Heavy Rain in ALLEGHENY, PENNSYLVANIA
From 09-AUG-07 07:30:00 to 09-AUG-07 07:30:00 (EST-5)
Location: GLENSHAW
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public measured 2.51 inches of rain in over an hour.

Heavy Rain in ALLEGHENY, PENNSYLVANIA
From 09-AUG-07 07:30:00 to 09-AUG-07 07:30:00 (EST-5)
Location: INGOMAR
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 3.57 inches of rain in 2 hours.

Flash Flood in ALLEGHENY, PENNSYLVANIA
From 09-AUG-07 15:03:00 to 09-AUG-07 16:15:00 (EST-5)
Location: GLENSHAW
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Amateur radio reported Mcnight road closed due to flash flooding.

Flash Flood in WASHINGTON, PENNSYLVANIA
From 09-AUG-07 15:05:00 to 09-AUG-07 16:35:00 (EST-5)
Location: ALLENPORT
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported water in 4 houses in Allenport due to flash flooding.

Flash Flood in FAYETTE, PENNSYLVANIA
From 09-AUG-07 15:18:00 to 09-AUG-07 18:25:00 (EST-5)
Location: BROWNSVILLE
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported flash flooding closing numerous roads in Brownsville.

Flash Flood in WASHINGTON, PENNSYLVANIA
From 09-AUG-07 15:30:00 to 09-AUG-07 16:30:00 (EST-5)
Location: ELLSWORTH
Flood cause: Heavy Rain
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported flash flooding closing roads in Ellsworth.

Flash Flood in WASHINGTON, PENNSYLVANIA
From 09-AUG-07 16:00:00 to 09-AUG-07 16:30:00 (EST-5)
Location: ELLSWORTH
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported Almond RD bridge flooded in Ellsworth.

Heavy Rain in WESTMORELAND, PENNSYLVANIA
From 09-AUG-07 14:40:00 to 09-AUG-07 14:40:00 (EST-5)
Location: MONESSEN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 3.03 inches of rainfall in one hour and 35 minutes.

Heavy Rain in WESTMORELAND, PENNSYLVANIA
From 09-AUG-07 17:10:00 to 09-AUG-07 17:10:00 (EST-5)
Location: LATROBE
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported 24 hour rainfall amount of 3.15 inches.

Flash Flood in ALLEGHENY, PENNSYLVANIA
From 09-AUG-07 07:48:00 to 09-AUG-07 09:00:00 (EST-5)
Location: PENN HILLS
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported Sandt Creek out of its banks flooding portions of Rodi road. Numerous basements with up to three feet of water in them from poor drainage flooding around 3rd street in Penn Hills.