A crossing shortwave trough, as well as a remnant mesoscale convective vortex from convection the previous night, acted as a trigger for another round of severe thunderstorms on the 4th of June. Surface-based CAPE of 1500-2000 J/kg and deep-layer shear of 30-40 knots set up the region for organized severe weather.  Storms initiated in central Ohio around midday and then congealed into a line which swept across the upper Ohio Valley through the middle to late afternoon hours. Severe weather reports were mainly limited to tree and power line damage, with only a few reports of damage to structures and vehicles.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 04-JUN-20 15:45:00 to 04-JUN-20 15:45:00 (EST-5)
Location: BOWER HILL
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A downed tree was reported to be blocking all lanes on Bower Hill Road by Painters Run Road.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 04-JUN-20 15:39:00 to 04-JUN-20 15:39:00 (EST-5)
Location: MC KEES ROCKS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree was reported to be blown down, blocking the roadway at the intersection of 5th Street and Penn Alley.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 04-JUN-20 15:45:00 to 04-JUN-20 15:45:00 (EST-5)
Location: BOWER HILL
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree and wires were blown down onto a vehicle at Vanadium Road and Insurrection Avenue.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 04-JUN-20 15:45:00 to 04-JUN-20 15:45:00 (EST-5)
Location: KIRWAN HGTS
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree and wires were reported to be blown down at the intersection of Hilltop Road and Walkers Mill Road.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 04-JUN-20 15:45:00 to 04-JUN-20 15:45:00 (EST-5)
Location: KIRWAN HGTS
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree and wires were reported to be blown down at the intersection of Hilltop Road and Walkers Mill Road.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 04-JUN-20 15:50:00 to 04-JUN-20 15:50:00 (EST-5)
Location: MC MURRAY
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Social Media

A photo was provided of a large tree across a road in McMurray, along with large branches of several surrounding trees.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 04-JUN-20 15:51:00 to 04-JUN-20 15:51:00 (EST-5)
Location: MT LEBANON
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree was reported to be blown down at the intersection of Scott Road and Jonquil Place.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 04-JUN-20 15:55:00 to 04-JUN-20 15:55:00 (EST-5)
Location: SHARPSBURG
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree was downed onto the road at the intersection of Allegheny River Boulevard and Washington Boulevard.

Thunderstorm Wind in MERCER, PENNSYLVANIA
From 04-JUN-20 15:55:00 to 04-JUN-20 15:55:00 (EST-5)
Location: PARDOE
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: NWS Employee

A healthy 20 foot tree and several branches were downed one half mile west of the I-80/I-70 interchange.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 04-JUN-20 15:56:00 to 04-JUN-20 15:56:00 (EST-5)
Location: WHITAKER
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree was reported to be blocking the entire roadway after being blown down.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 04-JUN-20 15:58:00 to 04-JUN-20 15:58:00 (EST-5)
Location: OPTION
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

A medium-sized tree was felled onto a home on Proctor Way.  The tree was lying on the gutter with no damage to the house.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 04-JUN-20 15:59:00 to 04-JUN-20 15:59:00 (EST-5)
Location: PLEASANT HILLS
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree was blown down onto the road, blocking a lane of travel.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 04-JUN-20 16:09:00 to 04-JUN-20 16:09:00 (EST-5)
Location: UNITY JCT
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A tree was blown down onto a road in Unity, blocking the entire roadway.

Thunderstorm Wind in ALLEGHENY, PENNSYLVANIA
From 04-JUN-20 16:19:00 to 04-JUN-20 16:19:00 (EST-5)
Location: BOSTON
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: 911 Call Center

Trees and wires were blown down onto Railroad Street, blocking the road.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 04-JUN-20 16:24:00 to 04-JUN-20 16:24:00 (EST-5)
Location: SPEERS
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A tree fell onto wires along State Route 88, closing the road in both directions between Grandview Way and the I-70 westbound ramp.

Funnel Cloud in VENANGO, PENNSYLVANIA
From 04-JUN-20 16:25:00 to 04-JUN-20 16:25:00 (EST-5)
Location: WESLEY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A funnel cloud was observed just northwest of Barkeyville.  A picture was provided.

Thunderstorm Wind in WASHINGTON, PENNSYLVANIA
From 04-JUN-20 16:30:00 to 04-JUN-20 16:30:00 (EST-5)
Location: SPEERS
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

A large tree was blown down onto power lines in the area.