A quasi-stationary frontal boundary set up across Ohio and Pennsylvania on the 17th, and wavered about the region until it was kicked off to the east by a stronger frontal boundary late on the 20th.  Flooding and flash flooding remained a concern through the period given an ideal setup for training storms, as well as efficient rainfall production associated with observed high PWATs and deeper warm cloud depths.  Storm total rainfall amounts of 2 to 4 inches were not uncommon.  Flooding reports in southwest Pennsylvania were mainly limited to road and basement issues.

Heavy Rain in ARMSTRONG, PENNSYLVANIA
From 18-JUN-19 00:30:00 to 18-JUN-19 06:07:00 (EST-5)
Location: BRADYS BEND
Reported by: Trained Spotter

A trained spotter reported 2.03 inches of rain from 1:30 AM to 7:07 AM.

Heavy Rain in CLARION, PENNSYLVANIA
From 17-JUN-19 18:25:00 to 18-JUN-19 06:25:00 (EST-5)
Location: KNOX
Reported by: Trained Spotter

A trained spotter reported 1.56 inches of rain over a 12 hour period.

Heavy Rain in CLARION, PENNSYLVANIA
From 16-JUN-19 06:37:00 to 18-JUN-19 06:37:00 (EST-5)
Location: SLOAN GAP
Reported by: Trained Spotter

A trained spotter reported 3.35 inches of rain during the previous 48 hours.

Heavy Rain in CLARION, PENNSYLVANIA
From 17-JUN-19 08:31:00 to 18-JUN-19 08:31:00 (EST-5)
Location: FRYBURG
Reported by: Trained Spotter

A trained spotter reported 1.63 inches of rain over the previous 24 hours.

Heavy Rain in BEAVER, PENNSYLVANIA
From 17-JUN-19 08:49:00 to 18-JUN-19 20:49:00 (EST-5)
Location: COLONA
Reported by: NWS Employee

An NWS Employee reported 1.2 inches of rain over the previous 12 hours, with 1.0 inch falling between 2 AM and 3 AM.

Flash Flood in ALLEGHENY, PENNSYLVANIA
From 19-JUN-19 14:08:00 to 19-JUN-19 16:10:00 (EST-5)
Location: COCHRANS MILL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The county emergency manager reported that one foot of water was running from Peters Creek on to Gill Hall Road, as well as State Route 51.

Flash Flood in ALLEGHENY, PENNSYLVANIA
From 19-JUN-19 14:17:00 to 19-JUN-19 16:10:00 (EST-5)
Location: BOSTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The county emergency manager reported that 3 feet of water with debris was flowing over Lincoln Way.

Flash Flood in ALLEGHENY, PENNSYLVANIA
From 19-JUN-19 14:29:00 to 19-JUN-19 16:10:00 (EST-5)
Location: WHITE OAK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Jacks Run Road was closed due to flooding, according to the county emergency manager.

Flash Flood in LAWRENCE, PENNSYLVANIA
From 19-JUN-19 16:46:00 to 19-JUN-19 18:08:00 (EST-5)
Location: ELLWOOD CITY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Major flooding was reported on 5th street between Beaver Avenue and Locust Way, according to the county emergency manager.

Flash Flood in WESTMORELAND, PENNSYLVANIA
From 19-JUN-19 19:33:00 to 19-JUN-19 21:00:00 (EST-5)
Location: WYANO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported that Hunters Run is flooding Turkeytown Road and the surrounding area.

Flash Flood in WESTMORELAND, PENNSYLVANIA
From 19-JUN-19 19:46:00 to 19-JUN-19 21:00:00 (EST-5)
Location: MENDON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported that Mount Pleasant Road was flooded, with reports of water entering basements of nearby homes.