A warm front moved northward across the mid-Atlantic early on October 25. A warm sector environment overspread the region, with temperatures rising well above seasonal values. A cold front began to slowly approach by late in the day, while cyclogenesis began to occur offshore in an increasingly baroclinic environment. With strengthening lift and strong wind fields, scattered convection developed across the region. Instability was limited but sufficient to sustained convection, and the strong wind fields helped some storms produce locally damaging winds. Convective activity gradually diminished through the later evening and early overnight hours as heating and forcing were lost.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 25-OCT-21 18:30:00 to 25-OCT-21 18:30:00 (EST-5)
Location: COATESVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

A tree was downed into wires near Coatesville. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 25-OCT-21 18:35:00 to 25-OCT-21 18:35:00 (EST-5)
Location: DOWNINGTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

A tree or limbs were downed onto wires near Hilltop Dr, with several other power outage reports in the general area. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 25-OCT-21 19:00:00 to 25-OCT-21 19:00:00 (EST-5)
Location: BELFRY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A tree was downed near the intersection of Swede Rd and Dekalb Pike. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 25-OCT-21 19:05:00 to 25-OCT-21 19:05:00 (EST-5)
Location: GWYNEDD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Stonebridge Rd. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 25-OCT-21 18:13:00 to 25-OCT-21 18:13:00 (EST-5)
Location: MENDENHALL
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

A tree and wires were downed on Center Mill Rd. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 25-OCT-21 18:52:00 to 25-OCT-21 18:52:00 (EST-5)
Location: NANTMEAL VLG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Murray School Rd. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 25-OCT-21 18:52:00 to 25-OCT-21 18:52:00 (EST-5)
Location: BIRCHRUNVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Half Hill Rd. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 25-OCT-21 18:57:00 to 25-OCT-21 18:57:00 (EST-5)
Location: KNAUERTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Pigeon Creek Trail. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 25-OCT-21 18:22:00 to 25-OCT-21 18:22:00 (EST-5)
Location: ROSEDALE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Sills Mill Rd. Time estimated from radar.