A frontal boundary that had been stalled over the mid-Atlantic had lifted north of the region by the morning of June 29. Later that day and into the evening, the front once again approached, this time as a strong cold front, as low pressure tracked through New England and began to intensify offshore in the Gulf of Maine. The combination of strong frontal forcing and a warm, unstable environment ahead of the front led to widespread severe thunderstorms developing. Numerous reports of damaging wind, as well as some hail, were received in association with these storms.

Hail in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:31:00 to 29-JUN-19 14:31:00 (EST-5)
Location: WAGONTOWN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail was reported.

Hail in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:33:00 to 29-JUN-19 14:33:00 (EST-5)
Location: COATESVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail was reported. Time estimated from radar.

Thunderstorm Wind in DELAWARE, PENNSYLVANIA
From 29-JUN-19 15:18:00 to 29-JUN-19 15:18:00 (EST-5)
Location: OAKMONT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large limbs were blown down from the canopies of several oak and maple trees. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 29-JUN-19 15:18:00 to 29-JUN-19 15:18:00 (EST-5)
Location: NARBERTH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed tree and wires near the intersection of Dove Lake Rd and Black Rock Rd. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 29-JUN-19 15:18:00 to 29-JUN-19 15:18:00 (EST-5)
Location: NARBERTH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Large tree down on Conshohocken State Rd near Waverly Rd. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 29-JUN-19 15:22:00 to 29-JUN-19 15:22:00 (EST-5)
Location: ARDMORE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A road sign was blown over near the intersection of Argyle Rd and Wynnewood Rd. Time estimated from radar.

Thunderstorm Wind in DELAWARE, PENNSYLVANIA
From 29-JUN-19 14:08:00 to 29-JUN-19 14:08:00 (EST-5)
Location: GLEN MILLS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A downed tree fell on Gradyville Rd near Valley Rd, closing all lanes. Time estimated from radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 29-JUN-19 14:16:00 to 29-JUN-19 14:16:00 (EST-5)
Location: BLANDON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A tree was downed on Hoch Rd. Time estimated from radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 29-JUN-19 14:22:00 to 29-JUN-19 14:22:00 (EST-5)
Location: SHILLINGTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A tree fell on wires on Welsh Rd in Cumru Twp. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 29-JUN-19 15:22:00 to 29-JUN-19 15:22:00 (EST-5)
Location: ARDSLEY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed tree on Tennis Ave near Limekiln Pike. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 29-JUN-19 15:24:00 to 29-JUN-19 15:24:00 (EST-5)
Location: CHELTENHAM
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed tree on Oak Lane Rd near Coventry Rd. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 29-JUN-19 15:26:00 to 29-JUN-19 15:26:00 (EST-5)
Location: LAWNDALE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed tree on Ashmead Rd near Tookany Creek Parkway. Time estimated from radar.

Thunderstorm Wind in PHILADELPHIA, PENNSYLVANIA
From 29-JUN-19 15:26:00 to 29-JUN-19 15:26:00 (EST-5)
Location: CHESTNUT HILL
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several trees reported down in this area. Time estimated from radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 29-JUN-19 14:22:00 to 29-JUN-19 14:22:00 (EST-5)
Location: WYOMISSING
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A tree fell on a house on Commonwealth Blvd in Kenhorst Boro. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:24:00 to 29-JUN-19 14:24:00 (EST-5)
Location: COMPASS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A downed tree blocked the roadway at the intersection of Sandy Hill Rd and Tyler Dr. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:26:00 to 29-JUN-19 14:26:00 (EST-5)
Location: SADSBURYVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A tree was downed near the intersection of Airport Rd and Ash Rd. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:26:00 to 29-JUN-19 14:26:00 (EST-5)
Location: COATESVILLE ARPT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A downed tree blocked the road at the intersection of Kings Hwy and Ash Rd. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 29-JUN-19 15:28:00 to 29-JUN-19 15:28:00 (EST-5)
Location: BETHAYRES
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A large downed tree blocked Stahl Rd near Welsh Rd. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 29-JUN-19 15:30:00 to 29-JUN-19 15:30:00 (EST-5)
Location: ROCKLEDGE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed tree near the intersection of Chancellor Ave and Northwood Ave. Time estimated from radar.

Thunderstorm Wind in PHILADELPHIA, PENNSYLVANIA
From 29-JUN-19 15:30:00 to 29-JUN-19 15:30:00 (EST-5)
Location: TACONY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Downed trees reported in this area. Time estimated from radar.

Thunderstorm Wind in PHILADELPHIA, PENNSYLVANIA
From 29-JUN-19 15:32:00 to 29-JUN-19 15:32:00 (EST-5)
Location: (PNE)NE ARPT PHILADE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Social media photos of several trees blown down in the northeast Philadelphia area. Time estimated from radar.

Thunderstorm Wind in BUCKS, PENNSYLVANIA
From 29-JUN-19 15:40:00 to 29-JUN-19 15:40:00 (EST-5)
Location: YARDLEY FARMS
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

A downed tree severely damaged an apartment building. Time estimated from radar.

Thunderstorm Wind in BUCKS, PENNSYLVANIA
From 29-JUN-19 15:43:00 to 29-JUN-19 15:43:00 (EST-5)
Location: CROYDEN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An mPing report of tree limbs down and property damage from thunderstorm winds. Time estimated from radar.

Thunderstorm Wind in PHILADELPHIA, PENNSYLVANIA
From 29-JUN-19 15:43:00 to 29-JUN-19 15:43:00 (EST-5)
Location: TACONY
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Public

A tree fell onto a truck and apartment. Time estimated from radar.

Thunderstorm Wind in PHILADELPHIA, PENNSYLVANIA
From 29-JUN-19 15:45:00 to 29-JUN-19 15:45:00 (EST-5)
Location: PHILADELPHIA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and power lines were down between Washington and Christian Streets. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:26:00 to 29-JUN-19 14:26:00 (EST-5)
Location: WAGONTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A tree fell onto Cedar Knoll Rd in West Caln Twp. Time estimated from radar.

Thunderstorm Wind in BERKS, PENNSYLVANIA
From 29-JUN-19 14:29:00 to 29-JUN-19 14:29:00 (EST-5)
Location: SEYFERT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A downed tree was reported at the intersection of Christy Court and White Bear Rd. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:29:00 to 29-JUN-19 14:29:00 (EST-5)
Location: PARKESBURG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed tree near the intersection of Limestone Rd and Old Racetrack Rd. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:31:00 to 29-JUN-19 14:31:00 (EST-5)
Location: ATGLEN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed trees and powerlines on and near Fallowfield Rd. Time estimated from radar.

Thunderstorm Wind in LEHIGH, PENNSYLVANIA
From 29-JUN-19 14:32:00 to 29-JUN-19 14:32:00 (EST-5)
Location: EAST PENN JCT
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Numerous trees and power lines were downed in the area of Susquehanna St with a few roads blocked. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:33:00 to 29-JUN-19 14:33:00 (EST-5)
Location: WAGONTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A downed tree blocked Monacy Rd near Manor Rd. Time estimated from radar.

Thunderstorm Wind in LEHIGH, PENNSYLVANIA
From 29-JUN-19 14:35:00 to 29-JUN-19 14:35:00 (EST-5)
Location: SHIMERVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Downed tree in wires at the intersection of Chestnut St and Kings Hwy with lane closures needed. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:37:00 to 29-JUN-19 14:37:00 (EST-5)
Location: ATGLEN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed tree on Gap Newport Pike near Glen Run Rd. Time estimated from radar.

Thunderstorm Wind in BUCKS, PENNSYLVANIA
From 29-JUN-19 15:48:00 to 29-JUN-19 15:48:00 (EST-5)
Location: MORRISVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees reported down here. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 15:51:00 to 29-JUN-19 15:51:00 (EST-5)
Location: HAYTI
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Photo received of a large tree down. Time estimated from radar.

Thunderstorm Wind in LEHIGH, PENNSYLVANIA
From 29-JUN-19 14:39:00 to 29-JUN-19 14:39:00 (EST-5)
Location: EAST PENN JCT
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Social media video received of numerous trees down and property damage in the Potter St and Tioga St sections of Allentown. Time estimated from radar.

Thunderstorm Wind in NORTHAMPTON, PENNSYLVANIA
From 29-JUN-19 14:39:00 to 29-JUN-19 14:39:00 (EST-5)
Location: PROSPECT HGTS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Downed tree on Jacksonville Rd near Macada Rd. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:41:00 to 29-JUN-19 14:41:00 (EST-5)
Location: PARKESBURG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A downed tree blocked Limestone Rd near Highland Rd. Time estimated from radar.

Thunderstorm Wind in NORTHAMPTON, PENNSYLVANIA
From 29-JUN-19 14:45:00 to 29-JUN-19 14:45:00 (EST-5)
Location: BUTZTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Several reports of downed trees and wires on Freemansburg Ave. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:47:00 to 29-JUN-19 14:47:00 (EST-5)
Location: ERCILDOUN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed tree near the intersection of Straburg Rd and Youngsburg Rd. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:51:00 to 29-JUN-19 14:51:00 (EST-5)
Location: HAYTI
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Photo of a large tree down in Coatesville. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:51:00 to 29-JUN-19 14:51:00 (EST-5)
Location: DOWNINGTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed tree near the intersection of William Salesbury Dr and Hickory Dr. Time estimated from radar.

Thunderstorm Wind in LEHIGH, PENNSYLVANIA
From 29-JUN-19 14:52:00 to 29-JUN-19 14:52:00 (EST-5)
Location: ALLENTOWN MUNI
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Photo of a large tree down on a fence and power lines. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:54:00 to 29-JUN-19 14:54:00 (EST-5)
Location: LYNDELL
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A downed tree blocked Dorian Mill Rd near Robert Dean Dr. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:58:00 to 29-JUN-19 14:58:00 (EST-5)
Location: DOWNINGTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed tree near the intersection of Woodland Dr and Santillo Way. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:58:00 to 29-JUN-19 14:58:00 (EST-5)
Location: SPRING CITY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed tree on Stony Run Rd near Schuylkill Rd in East Vincent Twp. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 14:58:00 to 29-JUN-19 14:58:00 (EST-5)
Location: PARKER FORD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Downed tree in wires at the intersection of Bethel Church Rd and Kolb Rd with lane closures required.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 15:02:00 to 29-JUN-19 15:02:00 (EST-5)
Location: GREEN HILL
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A downed tree blocked Boot Rd near King Rd in West Whiteland Twp. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 29-JUN-19 15:02:00 to 29-JUN-19 15:02:00 (EST-5)
Location: YERKES
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed tree near Stellas Way and Level Rd. Time estimated from radar.

Thunderstorm Wind in NORTHAMPTON, PENNSYLVANIA
From 29-JUN-19 15:03:00 to 29-JUN-19 15:03:00 (EST-5)
Location: FARMINGTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Large tree limbs were downed. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 15:05:00 to 29-JUN-19 15:05:00 (EST-5)
Location: LANDENBERG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees reported down. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 15:06:00 to 29-JUN-19 15:06:00 (EST-5)
Location: CHATWOOD
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Reports of downed trees and limbs in several locations in and near West Chester. Time estimated from radar and social media reports.

Thunderstorm Wind in DELAWARE, PENNSYLVANIA
From 29-JUN-19 15:06:00 to 29-JUN-19 15:06:00 (EST-5)
Location: GLEN MILLS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A downed tree closed all lanes of PA-352 near Valley Rd. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 15:08:00 to 29-JUN-19 15:08:00 (EST-5)
Location: FIVE PTS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A downed tree was reported near the intersection of Oriole Dr and Chandler Mill Rd. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 15:08:00 to 29-JUN-19 15:08:00 (EST-5)
Location: CEDAR HOLLOW STATION
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed tree near the intersection of Valley Rd and Swedesford Rd. Time estimated from radar.

Thunderstorm Wind in DELAWARE, PENNSYLVANIA
From 29-JUN-19 15:08:00 to 29-JUN-19 15:08:00 (EST-5)
Location: GLEN MILLS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Downed tree on Gradyville Rd near Valley Rd with all lanes closed. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 15:12:00 to 29-JUN-19 15:12:00 (EST-5)
Location: STRAFFORD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed tree near the intersection of Upper Gulph Rd and Wentworth Rd. Time estimated from radar.

Thunderstorm Wind in CHESTER, PENNSYLVANIA
From 29-JUN-19 15:14:00 to 29-JUN-19 15:14:00 (EST-5)
Location: STRAFFORD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed tree near the intersection of Old Eagle School Rd and Valley Rd. Time estimated from radar.

Thunderstorm Wind in DELAWARE, PENNSYLVANIA
From 29-JUN-19 15:14:00 to 29-JUN-19 15:14:00 (EST-5)
Location: MOYLAN ROSE VLY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Downed tree on PA-352 near Middletown Rd, closing all lanes. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 29-JUN-19 15:14:00 to 29-JUN-19 15:14:00 (EST-5)
Location: SWEDELAND
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

A downed tree blocked the I-76 exit ramp to Balligomingo Rd. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 29-JUN-19 15:16:00 to 29-JUN-19 15:16:00 (EST-5)
Location: IVY ROCK
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Multiple large trees down near Stony Ln. Time estimated from radar.

Thunderstorm Wind in MONTGOMERY, PENNSYLVANIA
From 29-JUN-19 15:16:00 to 29-JUN-19 15:16:00 (EST-5)
Location: HARMONVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Downed tree at Barren Hill Rd and River Rd. Time estimated from radar.