A hot and humid air mass remained in place over the mid-Atlantic on August 27. A slow moving cold front began dropping southward into the region during the afternoon. This helped scattered to widespread convection develop in a strongly unstable air mass. Shear was weak over the region, but thanks to the strong instability, a number of storms became strong to severe with a threat for damaging downburst winds, in addition to locally heavy rain. Convection continued into the late evening hours before gradually waning in coverage as instability was lost.

Thunderstorm Wind in MONROE, PENNSYLVANIA
From 27-AUG-21 13:26:00 to 27-AUG-21 13:26:00 (EST-5)
Location: KRESGEVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was downed into wires on Molasses Valley Rd. Time estimated from radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 27-AUG-21 18:09:00 to 27-AUG-21 18:09:00 (EST-5)
Location: CENTERPORT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

There were a few reports of downed trees and wires in Centre Twp. Time estimated from radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 27-AUG-21 17:36:00 to 27-AUG-21 17:36:00 (EST-5)
Location: CHARMING FORGE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

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

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 27-AUG-21 17:31:00 to 27-AUG-21 17:31:00 (EST-5)
Location: CHARMING FORGE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Tree limbs and wires were downed west of Reider Rd. Time estimated from radar.

Thunderstorm Wind in MONROE, PENNSYLVANIA
From 27-AUG-21 12:59:00 to 27-AUG-21 12:59:00 (EST-5)
Location: LONG POND
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Wires were downed near PA-115. Time estimated from radar.

Thunderstorm Wind in MONROE, PENNSYLVANIA
From 27-AUG-21 13:34:00 to 27-AUG-21 13:34:00 (EST-5)
Location: HUNKLETOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Tree limbs and wires were downed near Blackberry Ln. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 27-AUG-21 13:42:00 to 27-AUG-21 13:42:00 (EST-5)
Location: WESTWOOD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A tree was downed on Rainbow Rd near W Lincoln Hwy. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 27-AUG-21 13:13:00 to 27-AUG-21 13:13:00 (EST-5)
Location: REECEVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Multiple trees were downed on Hurley Rd. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 27-AUG-21 13:18:00 to 27-AUG-21 13:18:00 (EST-5)
Location: ROCK RUN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Several trees were downed in the area of Pratts Dam Rd. Time estimated from radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 27-AUG-21 18:00:00 to 27-AUG-21 18:00:00 (EST-5)
Location: CENTERPORT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

There were multiple reports of trees down between Penn Twp and Centerport. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 27-AUG-21 13:05:00 to 27-AUG-21 13:05:00 (EST-5)
Location: DOWNINGTOWN MEML ARP
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Several trees were reported down around Caln Twp. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 27-AUG-21 13:20:00 to 27-AUG-21 13:20:00 (EST-5)
Location: DOWNINGTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

A tree and utility pole were downed in the 900 block of Horseshoe Pike. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 27-AUG-21 13:10:00 to 27-AUG-21 13:10:00 (EST-5)
Location: DOWNINGTOWN MEML ARP
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Several large branches were downed and blocked traffic. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 27-AUG-21 13:30:00 to 27-AUG-21 13:30:00 (EST-5)
Location: ROCK RUN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Multiple trees were downed at Route 30 Bypass and Moore Rd. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 27-AUG-21 13:30:00 to 27-AUG-21 13:30:00 (EST-5)
Location: HAYTI
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees were downed along Route 84 between Route 30 Bypass and Business Route 30 just north of Coatesville. Time estimated from radar.

Thunderstorm Wind in MONROE, PENNSYLVANIA
From 27-AUG-21 12:36:00 to 27-AUG-21 12:36:00 (EST-5)
Location: PRESERVE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Wires were downed near Maple Dr. Time estimated from radar.

Thunderstorm Wind in MONROE, PENNSYLVANIA
From 27-AUG-21 11:33:00 to 27-AUG-21 11:33:00 (EST-5)
Location: TOBYHANNA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Tree limbs and wires were downed near Country Place Dr. Time estimated from radar and utility company reports.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 27-AUG-21 13:04:00 to 27-AUG-21 13:04:00 (EST-5)
Location: DOWNINGTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Multiple trees were downed on Osborne Rd. Time estimated from radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 27-AUG-21 17:31:00 to 27-AUG-21 17:31:00 (EST-5)
Location: SINKING SPG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

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

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 27-AUG-21 17:56:00 to 27-AUG-21 17:56:00 (EST-5)
Location: MT PLEASANT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

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