Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 12-MAY-02 14:00:00 to 12-MAY-02 14:30:00 (EST)
Location: COUNTYWIDE
Magnitude: 65 E
Property damage: 100K
Reported by: NWS STORM SURVEY

A thunderstorm microburst passed across Westmoreland County, leaving a path of damage along its entire route.  The greatest amount of damage occurred in the Irwin and North Huntington areas.  However, damage also occurred in Jeanette, Greensburg, Latrobe and Derry.  Just a few miles west of Greensburg in the Hempfield Township area, a man was killed when a tree was uprooted and fell on the car he was riding in.  The driver and another passenger in the care were also injured.  The width of the microburst appeared to be the widest through the Irwin area where it reached close to 700 yards.  Hundreds of trees were either uprooted or snapped.  Many utility poles and wires were also knocked down or snapped.  There was damage to several roofs, porches and decks.  One roof over the back porch of a house was lifted up and over the house and deposited in the front yard.  there were many houses that lost shingles, siding and awnings.  Maximum winds were estimated to be around 75 MPH.

Thunderstorm Wind in INDIANA, PENNSYLVANIA
From 12-MAY-02 14:25:00 to 12-MAY-02 14:25:00 (EST)
Location: BLAIRSVILLE
Property damage: 10K
Reported by: TRAINED SPOTTER

Thunderstorm winds downed numerous trees in and around the Blairsville area.

Flash Flood in MERCER, PENNSYLVANIA
From 13-MAY-02 00:04:00 to 13-MAY-02 04:00:00 (EST)
Location: STONEBORO
Reported by: TRAINED SPOTTER

Several rounds of thunderstorm rains produced minor basement and roadway flooding in the Stoneboro area.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 12-MAY-02 13:44:00 to 12-MAY-02 13:55:00 (EST)
Location: MC KEESPORT
Property damage: 50K
Reported by: NEWSPAPER

Thunderstorm winds downed numerous trees and power lines in the McKeesport area.  A few of these trees fell onto houses, causing minor damage.  In addition, the straight-line winds took hold of 10 trailers chained together at a home improvement center and blew them onto the nearby highway.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 12-MAY-02 13:48:00 to 12-MAY-02 13:48:00 (EST)
Location: GIBSONIA
Property damage: 5K
Reported by: TRAINED SPOTTER

Thunderstorm winds downed several trees.

Flash Flood in JEFFERSON, PENNSYLVANIA
From 12-MAY-02 13:40:00 to 12-MAY-02 16:00:00 (EST)
Location: BROOKVILLE
Property damage: 10K
Reported by: LAW ENFORCEMENT

Thunderstorm rains produced roadway flooding along State Highway 36, just north of Brookville.  In Brookville, a small stream overflowed into a trailer park.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 12-MAY-02 13:28:00 to 12-MAY-02 13:28:00 (EST)
Location: CANONSBURG
Property damage: 20K
Reported by: LAW ENFORCEMENT

A section of the roof was torn from a restaurant by thunderstorm winds.  Numerous trees and power lines were also down in Canonsburg.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 12-MAY-02 14:00:00 to 12-MAY-02 14:00:00 (EST)
Location: CANONSBURG
Property damage: 10K
Reported by: TRAINED SPOTTER

Thunderstorm winds downed numerous trees and power lines.

Thunderstorm Wind in LAWRENCE, PENNSYLVANIA
From 12-MAY-02 12:45:00 to 12-MAY-02 12:45:00 (EST)
Location: NEW CASTLE
Property damage: 2K
Reported by: LAW ENFORCEMENT

Thunderstorm winds downed a few large trees.

Thunderstorm Wind in BUTLER, PENNSYLVANIA
From 12-MAY-02 12:57:00 to 12-MAY-02 12:57:00 (EST)
Location: WHITESTOWN
Property damage: 1K
Reported by: LAW ENFORCEMENT

Thunderstorm winds downed a large tree.

Thunderstorm Wind in BUTLER, PENNSYLVANIA
From 12-MAY-02 13:00:00 to 12-MAY-02 13:00:00 (EST)
Location: CRIDERS CORNERS
Property damage: 5K
Reported by: LAW ENFORCEMENT

Thunderstorm winds downed several trees and power lines.

Flash Flood in VENANGO, PENNSYLVANIA
From 12-MAY-02 12:55:00 to 12-MAY-02 15:30:00 (EST)
Location: SUGARCREEK
Property damage: 10K
Reported by: LAW ENFORCEMENT

Thunderstorm rains produced basement and roadway flooding.  Several small streams in the area were also forced from their banks.

Flash Flood in CLARION, PENNSYLVANIA
From 12-MAY-02 13:20:00 to 12-MAY-02 15:30:00 (EST)
Location: MECHANICSVILLE
Reported by: LAW ENFORCEMENT

Thunderstorm rains produced roadway flooding along State Highway 66, just south of Interstate 80.

Thunderstorm Wind in BEAVER, PENNSYLVANIA
From 12-MAY-02 13:10:00 to 12-MAY-02 13:20:00 (EST)
Location: BEAVER
Property damage: 10K
Reported by: LAW ENFORCEMENT

Thunderstorm winds downed numerous trees and power lines across Beaver, Monaca and Ambridge.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 12-MAY-02 13:18:00 to 12-MAY-02 13:18:00 (EST)
Location: SEWICKLEY
Magnitude: 52 E
Reported by: TRAINED SPOTTER

A spotter estimated thunderstorm winds gusting to 60 MPH.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 12-MAY-02 13:30:00 to 12-MAY-02 13:30:00 (EST)
Location: MILLERSTOWN
Property damage: 5K
Reported by: TRAINED SPOTTER

Thunderstorm winds downed several trees.

Thunderstorm Wind in ARMSTRONG, PENNSYLVANIA
From 12-MAY-02 14:00:00 to 12-MAY-02 14:00:00 (EST)
Location: KITTANNING
Property damage: 10K
Reported by: LAW ENFORCEMENT

Thunderstorm winds downed numerous trees and power lines.

Flash Flood in JEFFERSON, PENNSYLVANIA
From 13-MAY-02 02:35:00 to 13-MAY-02 06:00:00 (EST)
Location: SIGEL
Reported by: LAW ENFORCEMENT

Heavy thunderstorm rains forced Clear Creek out of its banks, which produced minor roadway flooding in Clear Creek State Park.