As a cold front moved southeast across the upper Ohio Valley, scattered severe thunderstorms developed across eastern Ohio, western Pennsylvania, and northern West Virginia. A supercell thunderstorm produced an EF1 tornado in Carroll and Jefferson counties in Ohio, with numerous reports of wind damage and hail up to golf ball size elsewhere. Flooding of streams and creeks also occurred over western Pennsylvania, eastern Ohio and the northern panhandle of West Virginia.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 02-JUN-10 18:58:00 to 02-JUN-10 18:58:00 (EST-5)
Location: MUNHALL
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported numerous trees down in Munhall.

Thunderstorm Wind in BEAVER, PENNSYLVANIA
From 02-JUN-10 21:03:00 to 02-JUN-10 21:03:00 (EST-5)
Location: HOMEWOOD
Magnitude: 50.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported trees down north of Beaver Falls.

Flood in BEAVER, PENNSYLVANIA
From 02-JUN-10 23:00:00 to 03-JUN-10 03:00:00 (EST-5)
Location: HOOKSTOWN
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: County Official

A county official reported U.S. 30 closed between SR 168 and Long Road due to flooding.

Flood in BUTLER, PENNSYLVANIA
From 02-JUN-10 23:00:00 to 03-JUN-10 03:00:00 (EST-5)
Location: BUTLER JCT
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: County Official

A county official reported SR 38 flooded.

Hail in BEAVER, PENNSYLVANIA
From 02-JUN-10 21:01:00 to 02-JUN-10 21:01:00 (EST-5)
Location: NEW BRIGHTON
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 02-JUN-10 15:30:00 to 02-JUN-10 15:30:00 (EST-5)
Location: PITTSBURGH
Magnitude: 50.00 EG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported large trees down and spotty roof damage.

Thunderstorm Wind in BEAVER, PENNSYLVANIA
From 02-JUN-10 18:08:00 to 02-JUN-10 18:08:00 (EST-5)
Location: HOOKSTOWN
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Public

The public reported large trees down south of Hookstown.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 02-JUN-10 18:55:00 to 02-JUN-10 18:55:00 (EST-5)
Location: OPTION
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Amateur radio reported trees down near Mt Oliver.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 02-JUN-10 19:15:00 to 02-JUN-10 19:15:00 (EST-5)
Location: RIVERTON
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported trees down in Mckeesport.

Hail in BEAVER, PENNSYLVANIA
From 02-JUN-10 13:50:00 to 02-JUN-10 13:50:00 (EST-5)
Location: BOCKTOWN
Magnitude: 0.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ALLEGHENY, PENNSYLVANIA
From 02-JUN-10 18:07:00 to 02-JUN-10 18:07:00 (EST-5)
Location: OAKDALE
Magnitude: 0.88 
Crop damage: 0.00K
Reported by: Public

Hail in BEAVER, PENNSYLVANIA
From 02-JUN-10 17:45:00 to 02-JUN-10 17:45:00 (EST-5)
Location: HARSHAVILLE
Magnitude: 1.25 
Crop damage: 0.00K
Reported by: Public

Hail in ALLEGHENY, PENNSYLVANIA
From 02-JUN-10 18:10:00 to 02-JUN-10 18:10:00 (EST-5)
Location: CLIFF MINE
Magnitude: 0.88 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ALLEGHENY, PENNSYLVANIA
From 02-JUN-10 18:10:00 to 02-JUN-10 18:10:00 (EST-5)
Location: IMPERIAL
Magnitude: 1.75 
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ALLEGHENY, PENNSYLVANIA
From 02-JUN-10 18:31:00 to 02-JUN-10 18:31:00 (EST-5)
Location: GAYLY
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in ALLEGHENY, PENNSYLVANIA
From 02-JUN-10 18:38:00 to 02-JUN-10 18:38:00 (EST-5)
Location: EAST CARNEGIE
Magnitude: 1.00 
Crop damage: 0.00K
Reported by: Amateur Radio