A cold front moved into the mid-Atlantic late on September 8. Widespread showers and thunderstorms developed in a warm and humid air mass ahead of the front, moving into eastern Pennsylvania during the evening and early overnight hours. With instability waning after dark, much of the convection remained sub-severe. However, some instances of damaging wind did occur, particularly along a bowing line segment in Berks County. Showers and storms continued to gradually weaken as they shifted east later in the night.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 08-SEP-21 21:55:00 to 08-SEP-21 21:55:00 (EST-5)
Location: READING
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in MONROE, PENNSYLVANIA
From 08-SEP-21 18:40:00 to 08-SEP-21 18:40:00 (EST-5)
Location: BLAKESLEE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Trees and wires were downed along Locust Ridge Rd near Arrowhead Lake. Time estimated from radar.

Thunderstorm Wind in NORTHAMPTON, PENNSYLVANIA
From 08-SEP-21 20:00:00 to 08-SEP-21 20:00:00 (EST-5)
Location: WIND GAP
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A tree was downed across North Broadway at Tribe Ln. Time estimated from radar.

Thunderstorm Wind in MONROE, PENNSYLVANIA
From 08-SEP-21 19:12:00 to 08-SEP-21 19:12:00 (EST-5)
Location: MT POCONO ARPT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Tree limbs were downed onto wires near Hemlock Dr at Sharbaugh Rd.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 08-SEP-21 21:42:00 to 08-SEP-21 21:42:00 (EST-5)
Location: WYOMISSING HILLS
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was downed onto a garage. Time estimated from radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 08-SEP-21 21:40:00 to 08-SEP-21 21:40:00 (EST-5)
Location: SPRINGMONT
Magnitude: 60.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

Multiple trees and power lines were downed onto houses and vehicles.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 08-SEP-21 21:28:00 to 08-SEP-21 21:28:00 (EST-5)
Location: WERNERSVILLE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees and wires were downed in South Heidelberg Twp. Time estimated from radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 08-SEP-21 21:48:00 to 08-SEP-21 21:48:00 (EST-5)
Location: SHILLINGTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree and wires were downed on Brobst St in Shillington Borough. Time estimated from radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 08-SEP-21 21:50:00 to 08-SEP-21 21:50:00 (EST-5)
Location: JACKSONWALD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large branches and wires were downed in Exeter Twp. Time estimated from radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 08-SEP-21 21:32:00 to 08-SEP-21 21:32:00 (EST-5)
Location: SINKING SPG
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Multiple trees were downed on the premises of Wernersville State Hospital. Time estimated from radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 08-SEP-21 21:58:00 to 08-SEP-21 21:58:00 (EST-5)
Location: STONY CREEK MILLS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A tree was downed on wires on Angora Rd in Lower Alsace Twp. Time estimated from radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 08-SEP-21 21:40:00 to 08-SEP-21 21:40:00 (EST-5)
Location: SPRINGMONT
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A tree fell on a garage on Cleveland Ave in Spring Twp. Time estimated from radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 08-SEP-21 21:43:00 to 08-SEP-21 21:43:00 (EST-5)
Location: (RDG)SPAATZ FLD READ
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Multiple large trees were downed. Time estimated from radar.