Scattered showers and thunderstorms were able to bloom during the afternoon hours as a shortwave trough crossed the region while convective temperatures were reached.  CAPE values of 1000-2000 J/kg were sufficient to induce updrafts capable of tapping dry air aloft to create a few instances of downbursts.  One particularly strong downburst occurred at the Quicksilver Golf Club in Washington County, where multiple trees were blown down and where 70 MPH wind was estimated. A couple instances of large hail were also reported in Allegheny County.  Merging/training thunderstorms also produced flash flooding that was localized to Lawrence County, where up to 1.5 inches of rain fell in a short time on saturated ground.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 27-JUN-19 15:36:00 to 27-JUN-19 15:36:00 (EST-5)
Location: MC ADAMS
Magnitude: 60.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Multiple trees down at Quicksilver Golf Club due to downburst wind. Wind gust of 70 MPH was estimated from number/health of trees in photos as well as radar signature.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 27-JUN-19 15:06:00 to 27-JUN-19 15:06:00 (EST-5)
Location: ROBINSON
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Wires were reported to be blown down along Bigger Road. Time of occurrence was estimated from radar.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 27-JUN-19 15:10:00 to 27-JUN-19 15:10:00 (EST-5)
Location: FOREST HILLS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Local media reported that several trees were blown down along Franklin Avenue.

Hail in ALLEGHENY, PENNSYLVANIA
From 27-JUN-19 15:17:00 to 27-JUN-19 15:17:00 (EST-5)
Location: BRENTWOOD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Hail in ALLEGHENY, PENNSYLVANIA
From 27-JUN-19 15:20:00 to 27-JUN-19 15:20:00 (EST-5)
Location: BALDWIN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

A social media user estimated the hail to be between dime and quarter sized.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 27-JUN-19 15:31:00 to 27-JUN-19 15:31:00 (EST-5)
Location: CANDOR
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

County 911 dispatchers reported wires were blown down in the area of Valleyview Road.
Time of occurrence was estimated from radar.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 27-JUN-19 15:32:00 to 27-JUN-19 15:32:00 (EST-5)
Location: CANDOR
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

County 911 officials reported that wires were blown down just east of Candor.  Time of occurrence estimated from radar.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 27-JUN-19 15:35:00 to 27-JUN-19 15:35:00 (EST-5)
Location: WILSON
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: State Official

According to 911 dispatchers, Coal Valley Road was closed due to a downed tree between Route 837 and Route 885.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 27-JUN-19 15:36:00 to 27-JUN-19 15:36:00 (EST-5)
Location: MIDWAY
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

County 911 officials reported that wire poles were blown down in Midway.  Time of occurrence was based on radar.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 27-JUN-19 15:37:00 to 27-JUN-19 15:37:00 (EST-5)
Location: MC DONALD
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: State Official

Wire poles were blown down in the area according to 911 dispatchers.  Time of ocurrence was based on radar.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 27-JUN-19 15:50:00 to 27-JUN-19 15:50:00 (EST-5)
Location: MILLIGANTOWN
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Wires were reported by 911 dispatchers to be blown down on Manchester Hill Road.

Thunderstorm Wind in WESTMORELAND, PENNSYLVANIA
From 27-JUN-19 16:20:00 to 27-JUN-19 16:20:00 (EST-5)
Location: EAST VANDERGRIFT
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

The broadcast media reported that a number of trees were blown down around the town of Vandergrift.  McKinley Avenue, Bryant Street, Poplar Street, and Beech Street were a few of the roads that had trees down.

Thunderstorm Wind in INDIANA, PENNSYLVANIA
From 27-JUN-19 16:40:00 to 27-JUN-19 16:40:00 (EST-5)
Location: ISELIN
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Trees were blown down in Young Township, according to 911 dispatchers.

Thunderstorm Wind in INDIANA, PENNSYLVANIA
From 27-JUN-19 17:20:00 to 27-JUN-19 17:20:00 (EST-5)
Location: PINE FLATS
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

County 911 dispatchers reported that trees and power lines were blown down in Green Township.

Thunderstorm Wind in LAWRENCE, PENNSYLVANIA
From 27-JUN-19 17:27:00 to 27-JUN-19 17:27:00 (EST-5)
Location: BESSEMER GWIN ARPT
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported that trees and power lines were blown down at McClain Road and Mount Jackson Road.

Thunderstorm Wind in LAWRENCE, PENNSYLVANIA
From 27-JUN-19 17:50:00 to 27-JUN-19 17:50:00 (EST-5)
Location: MAHONINGTOWN
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

According to a 911 dispatcher, a tree was blown down, blocking 3rd Street between West Madison and West Clayton Streets.  Time of occurrence was estimated from radar.

Thunderstorm Wind in LAWRENCE, PENNSYLVANIA
From 27-JUN-19 17:51:00 to 27-JUN-19 17:51:00 (EST-5)
Location: NEW CASTLE
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Croton Avenue was closed due to a tree downed on power lines, according to county 911 officials. The time of occurrence was based on radar.

Flash Flood in LAWRENCE, PENNSYLVANIA
From 27-JUN-19 18:15:00 to 27-JUN-19 19:59:00 (EST-5)
Location: WALMO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

County 911 dispatchers reported that the 100 block of Shenango Road was flooded.

Flash Flood in LAWRENCE, PENNSYLVANIA
From 27-JUN-19 18:22:00 to 27-JUN-19 19:59:00 (EST-5)
Location: WALMO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A county 911 dispatcher reported that flood water was entering a garage on Avalon Drive.

Flash Flood in LAWRENCE, PENNSYLVANIA
From 27-JUN-19 18:26:00 to 27-JUN-19 19:59:00 (EST-5)
Location: BESSEMER GWIN ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A county 911 dispatcher reported flooding at Mount Jackson Road and Smalls Ferry Road.

Flash Flood in LAWRENCE, PENNSYLVANIA
From 27-JUN-19 18:28:00 to 27-JUN-19 19:59:00 (EST-5)
Location: WALMO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Old Pulaski Road was reported by a county 911 dispatcher to be flooded.

Flash Flood in LAWRENCE, PENNSYLVANIA
From 27-JUN-19 18:29:00 to 27-JUN-19 19:59:00 (EST-5)
Location: PARKSTOWN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

A 911 dispatcher reported flooding on West State Street.