A low pressure system and its associated warm front were slowly progressing through the Ohio valley bringing numerous rounds of showers and thunderstorms. Outflow boundaries left over from thunderstorms late on May 12th became a mechanism for re-development ahead and along the warm front on the 13th. Many of these storms were slow moving causing the flooding of many roadways in southwestern Pennsylvania and eastern Ohio.

Flood in WASHINGTON, PENNSYLVANIA
From 13-MAY-11 15:40:00 to 13-MAY-11 20:00:00 (EST-5)
Location: MUSE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reports that several roads are flooded in Cecil Township.

Hail in WESTMORELAND, PENNSYLVANIA
From 13-MAY-11 14:00:00 to 13-MAY-11 14:00:00 (EST-5)
Location: GRAPEVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in BEAVER, PENNSYLVANIA
From 13-MAY-11 15:05:00 to 13-MAY-11 15:05:00 (EST-5)
Location: WEST ALIQUIPPA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Flood in WASHINGTON, PENNSYLVANIA
From 13-MAY-11 15:50:00 to 13-MAY-11 20:00:00 (EST-5)
Location: VESTABURG
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reports that several homes are flooded throughout Washington county. One house in Prosperity has 6 feet of water in the basement and animals at a nearby farm needed to be rescued. There was also a mudslide on Route 18 near Prosperity.

Flood in ALLEGHENY, PENNSYLVANIA
From 13-MAY-11 16:26:00 to 13-MAY-11 20:00:00 (EST-5)
Location: FAIROAKS
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: State Official

State official reports that Seven Road and Little Sewickley Creek Road are closed due to flooding.

Flood in FAYETTE, PENNSYLVANIA
From 13-MAY-11 16:00:00 to 13-MAY-11 20:00:00 (EST-5)
Location: FOOTEDALE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

State official reports that a mudslide has occurred in German Township. Also, several roads are closed in Masontown due to flooding.

Flood in WESTMORELAND, PENNSYLVANIA
From 13-MAY-11 16:27:00 to 13-MAY-11 20:00:00 (EST-5)
Location: MILLIGANTOWN
Flood cause: Heavy Rain
Property damage: 15.00K
Crop damage: 0.00K
Reported by: State Official

State official reports that numerous houses and roads are flooded in Upper Burrell Township. Also, an apartment building was flooded.

Flood in GREENE, PENNSYLVANIA
From 13-MAY-11 16:39:00 to 14-MAY-11 06:00:00 (EST-5)
Location: KHEDIVE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Public

The public reports numerous roads off of Route 21 flooded.

Flood in GREENE, PENNSYLVANIA
From 13-MAY-11 17:38:00 to 14-MAY-11 06:00:00 (EST-5)
Location: JEFFERSON
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: State Official

PA State official reports that Route 188 is closed near Greene Country Club.

Flood in GREENE, PENNSYLVANIA
From 13-MAY-11 20:58:00 to 14-MAY-11 06:00:00 (EST-5)
Location: ROGERSVILLE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: State Official

State official reports that Miranda Road in Center Township is closed due to flooding.

Flood in GREENE, PENNSYLVANIA
From 13-MAY-11 21:03:00 to 14-MAY-11 06:00:00 (EST-5)
Location: KHEDIVE
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: State Official

State official reports that Crees Road in Cumberland Township is closed due to flooding.

Flood in GREENE, PENNSYLVANIA
From 13-MAY-11 21:01:00 to 14-MAY-11 06:00:00 (EST-5)
Location: DEER LICK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

State official reports that Shoestring Road is closed due to flooding in Morris Township.

Flood in GREENE, PENNSYLVANIA
From 13-MAY-11 21:04:00 to 14-MAY-11 06:00:00 (EST-5)
Location: MORRISVILLE
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: State Official

State official reports that state route 18 is closed due to flooding from Amsterdam Road to Deerlick Station Road in Franklin, Washington, and Morris Townships.

Flood in ALLEGHENY, PENNSYLVANIA
From 13-MAY-11 15:10:00 to 13-MAY-11 20:00:00 (EST-5)
Location: MILLVALE
Flood cause: Heavy Rain
Property damage: 20.00K
Crop damage: 0.00K
Reported by: State Official

State official reports that numerous roads are flooded throughout Allegheny county including Cedar Blvd., Scrubgrass Rd. at Swallow Hill Rd., Boyce Rd., at Mayview, Bigelow Blvd., near Herron Blvd., and Petrie Rd. at Coraopolis Rd.

Flood in WESTMORELAND, PENNSYLVANIA
From 13-MAY-11 15:15:00 to 13-MAY-11 20:00:00 (EST-5)
Location: DELMONT
Flood cause: Heavy Rain
Property damage: 5.00K
Crop damage: 0.00K
Reported by: County Official

County official reports that one lane of Route 66 is closed due to flooding.

Hail in WASHINGTON, PENNSYLVANIA
From 13-MAY-11 14:40:00 to 13-MAY-11 14:40:00 (EST-5)
Location: PROSPERITY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public