An area of low pressure formed along a slow-moving cold front as it crossed the Commonwealth of Pennsylvania. The low worked its way northward from the Carolinas into the Mid-Atlantic on the 2nd, leading to the development of an expansive precipitation shield that entered the County Warning Area by 6:00 PM EDT. Weak instability with CAPE values generally less than 300 J/kg were just enough to support convection along the leading edge of the precipitation shield in the form of a well-developed QLCS. The weak instability resulted in little lightning activity, but the strong dynamics were enough to sustain the leading edge of the QLCS. Sufficient storm relative helicity near 333 m^2/s^2 (sfc-1 km) allowed for small circulation centers to develop along the QLCS, and thus several strong rear-flank downdrafts formed along the broken line. No tornadoes were confirmed after damage surveys and all damage was attributed to straight-line winds from microbursts.

Hail in MONTGOMERY, PENNSYLVANIA
From 02-NOV-18 21:45:00 to 02-NOV-18 21:45:00 (EST-5)
Location: STOWE
Magnitude: 1.00 
Reported by: Trained Spotter

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 02-NOV-18 21:33:00 to 02-NOV-18 21:33:00 (EST-5)
Location: HOPEWELL
Magnitude: 50.00 EG
Reported by: Social Media

Downed tree at intersection of Park Road and Chestnut Street. Time estimated based on radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 02-NOV-18 21:33:00 to 02-NOV-18 21:33:00 (EST-5)
Location: DOUGLASVILLE
Magnitude: 50.00 EG
Reported by: Social Media

A few trees down near the Benjamin Franklin Highway in Douglassville. Time estimated based on radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 02-NOV-18 21:37:00 to 02-NOV-18 21:37:00 (EST-5)
Location: POTTSTOWN MUNI ARPT
Magnitude: 50.00 EG
Reported by: Department of Highways

Downed tree brought down wires near the intersection of Manatawny Street and Sell Road. Time estimated based on radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 02-NOV-18 21:39:00 to 02-NOV-18 21:39:00 (EST-5)
Location: GABELSVILLE
Magnitude: 50.00 EG
Reported by: Social Media

Several reports were gathereed of trees down in Early Township, including near Manatawny Road and Longview Road and on Powder Mill at Hollow Road. Time estimated using radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 02-NOV-18 21:39:00 to 02-NOV-18 21:39:00 (EST-5)
Location: POTTSTOWN
Magnitude: 70.00 EG
Reported by: Social Media

Photos showed that several hardwood trees were downed in a residential area.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 02-NOV-18 21:39:00 to 02-NOV-18 21:39:00 (EST-5)
Location: POTTSTOWN
Magnitude: 80.00 EG
Reported by: Social Media

Several large trees were downed at the Brookside Country Club. Time estimated using radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 02-NOV-18 21:39:00 to 02-NOV-18 21:39:00 (EST-5)
Location: POTTSTOWN
Magnitude: 70.00 EG
Reported by: 911 Call Center

A large tree was down and blocking a roadway at the interesction of Warren Street and Virginia Avenue.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 02-NOV-18 21:42:00 to 02-NOV-18 21:42:00 (EST-5)
Location: SANATOGA
Magnitude: 61.00 EG
Reported by: Newspaper

A tree fell upon and severely damaged a home on Woodmere Road.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 02-NOV-18 21:42:00 to 02-NOV-18 21:42:00 (EST-5)
Location: SANATOGA
Magnitude: 70.00 EG
Reported by: Newspaper

Several trees were downed upon cars on Welsh Drive. A porch roof blew off a home on North Pleasantview Road. Time estimated using radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 02-NOV-18 21:44:00 to 02-NOV-18 21:44:00 (EST-5)
Location: SANATOGA
Magnitude: 52.00 EG
Reported by: Department of Highways

A tree was downed on wires on Sanatoga Road  between Crownview Road and Snell Road. All lanes were closed. Time estimated using radar.

Thunderstorm Wind in BUCKS, PENNSYLVANIA
From 02-NOV-18 21:57:00 to 02-NOV-18 21:57:00 (EST-5)
Location: RICHLANDTOWN
Magnitude: 50.00 EG
Reported by: State Official

A few trees were reported to have fallen in the area. Time was estimated based on radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 02-NOV-18 21:59:00 to 02-NOV-18 21:59:00 (EST-5)
Location: ALDHAM
Magnitude: 52.00 EG
Reported by: 911 Call Center

Wires were reported down near Valley Hill Road and Valley Beech Lane.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 02-NOV-18 21:59:00 to 02-NOV-18 21:59:00 (EST-5)
Location: TYLERSPORT
Magnitude: 50.00 EG
Reported by: Department of Highways

A tree was downed into wires on Miller Road between Ridge Road and Swamp Creek Road.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 02-NOV-18 22:09:00 to 02-NOV-18 22:09:00 (EST-5)
Location: FRAZIER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several residences, including a group home, sustained damage from downed trees.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 02-NOV-18 22:13:00 to 02-NOV-18 22:13:00 (EST-5)
Location: GENERAL WARREN VLG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Several trees and wires down near the Malvern SEPTA Station.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 02-NOV-18 22:15:00 to 02-NOV-18 22:15:00 (EST-5)
Location: SUGARTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A group home sustained damage by downed trees.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 02-NOV-18 22:20:00 to 02-NOV-18 22:20:00 (EST-5)
Location: EAGLEVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Numerous large trees reported down across the area.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 02-NOV-18 22:49:00 to 02-NOV-18 22:49:00 (EST-5)
Location: FLOURTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Tree down in wires on Stenton Avenue and Penllyn Blue Bell Pike between Joshua Road and Militia Hill Road. All lanes closed. Time estimated from radar.