Isolated clusters of storms developed across northwest PA during the late afternoon and persisted into the evening hours. The strongest storms were located over north-central PA, where some marginal supercell structures were observed. These severe thunderstorms produced several reports of wind damage with trees down across Warren, McKean, Elk, Cameron and Sullivan Counties.

Thunderstorm Wind in CAMERON, PENNSYLVANIA
From 19-JUL-15 19:50:00 to 19-JUL-15 19:50:00 (EST-5)
Location: DRIFTWOOD
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A thunderstorm producing winds near 60 mph knocked a tree onto wires near Driftwood.

Thunderstorm Wind in ELK, PENNSYLVANIA
From 19-JUL-15 18:50:00 to 19-JUL-15 18:50:00 (EST-5)
Location: KAULMONT
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A thunderstorm producing winds near 60 mph knocked down a tree, blocking a lane of traffic in Saint Marys.

Thunderstorm Wind in ELK, PENNSYLVANIA
From 19-JUL-15 19:05:00 to 19-JUL-15 19:05:00 (EST-5)
Location: ST MARYS
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: State Official

A thunderstorm producing winds near 60 mph knocked down trees on Glen Hazel Road in Saint Marys.

Thunderstorm Wind in ELK, PENNSYLVANIA
From 19-JUL-15 18:40:00 to 19-JUL-15 18:40:00 (EST-5)
Location: JAMES CITY
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: State Official

A thunderstorm producing winds near 60 mph knocked down trees on Lamont Road in Highland Twp just east of James City.

Thunderstorm Wind in ELK, PENNSYLVANIA
From 19-JUL-15 19:15:00 to 19-JUL-15 19:15:00 (EST-5)
Location: KAULMONT
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: State Official

A thunderstorm producing winds around 60 mph knocked down trees at 133 Washington Street in Saint Marys.

Thunderstorm Wind in ELK, PENNSYLVANIA
From 19-JUL-15 19:05:00 to 19-JUL-15 19:05:00 (EST-5)
Location: HELEN MILLS
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: State Official

A thunderstorm producing winds around 60 mph knocked down trees, blocking a stretch of Route 153.

Thunderstorm Wind in SULLIVAN, PENNSYLVANIA
From 19-JUL-15 15:50:00 to 19-JUL-15 15:50:00 (EST-5)
Location: LOPEZ
Magnitude: 50.00 EG
Property damage: 7.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A thunderstorm producing winds around 60 mph knocked down or snapped about a dozen trees, along with some power lines near Lopez.

Thunderstorm Wind in WARREN, PENNSYLVANIA
From 19-JUL-15 17:50:00 to 19-JUL-15 17:50:00 (EST-5)
Location: TIDIOUTE
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A thunderstorm producing winds around 60 mph knocked trees down onto Main Street in Tidioute.

Thunderstorm Wind in WARREN, PENNSYLVANIA
From 19-JUL-15 17:50:00 to 19-JUL-15 17:50:00 (EST-5)
Location: TIDIOUTE
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: 911 Call Center

A thunderstorm producing winds around 60 mph knocked trees down onto Route 62 near Tidioute.

Thunderstorm Wind in MCKEAN, PENNSYLVANIA
From 19-JUL-15 17:30:00 to 19-JUL-15 17:30:00 (EST-5)
Location: BRADFORD
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A thunderstorm producing winds near 60 mph knocked down multiple trees in Bradford.