A stalled frontal boundary was draped in the area of southern New Jersey and Delmarva on July 30. Meanwhile, another cold front was approaching the region from the northwest. A warm and very humid air mass developed ahead of this second front, leading to the development of moderate to strong instability over much of the mid-Atlantic. The approach of the front also gradually increased wind shear values, though greater shear remained further north over New York and New England. Nonetheless, frontal forcing in the unstable air mass was sufficient to trigger scattered thunderstorms, some of which became strong to severe and produced a number of reports of damaging winds.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 30-JUL-20 22:06:00 to 30-JUL-20 22:06:00 (EST-5)
Location: NORRISTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A tree was downed near the intersection of Poplar St and Astor St in Norristown. Time estimated from radar.

Thunderstorm Wind in NORTHAMPTON, PENNSYLVANIA
From 30-JUL-20 22:18:00 to 30-JUL-20 22:18:00 (EST-5)
Location: BUTZTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was downed into wires on Willow Park Rd near First St in Bethlehem. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 30-JUL-20 22:27:00 to 30-JUL-20 22:27:00 (EST-5)
Location: GWYNEDD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A tree was downed near the intersection of School House Ln and Dekalb Pike. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 30-JUL-20 22:27:00 to 30-JUL-20 22:27:00 (EST-5)
Location: GWYNEDD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A power pole and wires were downed near the intersection of Latchstring Ln and Plymouth Rd. Time estimated from radar.

Thunderstorm Wind in NORTHAMPTON, PENNSYLVANIA
From 30-JUL-20 22:27:00 to 30-JUL-20 22:27:00 (EST-5)
Location: NEWBURG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A downed utility was reported on PA-248 near Nazareth-Bethlehem Pike. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 30-JUL-20 22:28:00 to 30-JUL-20 22:28:00 (EST-5)
Location: PENNBROOK
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Several reports received of downed power lines near Lansdale and North Wales. Time estimated from radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 30-JUL-20 22:53:00 to 30-JUL-20 22:53:00 (EST-5)
Location: GABELSVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

A tree fell onto wires, causing a power outage near the intersection of Sandy Hill Rd and Power Mill Hollow Rd. Time estimated from radar.

Thunderstorm Wind in BUCKS, PENNSYLVANIA
From 30-JUL-20 23:04:00 to 30-JUL-20 23:04:00 (EST-5)
Location: OTTSVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Tabor Rd in Ottsville. Time estimated from radar.

Thunderstorm Wind in BUCKS, PENNSYLVANIA
From 30-JUL-20 23:09:00 to 30-JUL-20 23:09:00 (EST-5)
Location: KINTNERSVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Kintner Hill Rd in Nockamixon Twp. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 30-JUL-20 23:13:00 to 30-JUL-20 23:13:00 (EST-5)
Location: HENDRICKS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Wires were reported down near Zieglrersville. Time estimated from radar.