After a significant heatwave, a cold front approached the mid-Atlantic on July 1, 2021. A potent mid-level trough was also digging southward through southern Ontario and into the Great Lakes region, and a strong upper level jet streak was present downstream the trough axis, over the interior mid-Atlantic and northern New England. This strong upper level forcing combined with the approaching front and a lingering warm, moist air mass ahead of it caused widespread thunderstorm development on July 1. Storms occurred almost exclusively south of Interstate 78, in the environment of best instability. A number of storms became severe, taking the form of mainly linear and multi-cellular clusters but with some embedded supercellular characteristics. Straight line wind damage was the primary hazard, with a number of reports of downed trees and power outages due to winds. With the cold front remaining to the west, some storm activity continued into the overnight, but storm coverage and intensity gradually waned with the loss of daytime heating and the overturning of the atmosphere from earlier storms.

Thunderstorm Wind in CUMBERLAND, NEW JERSEY
From 01-JUL-21 22:25:00 to 01-JUL-21 22:25:00 (EST-5)
Location: BRIDGETON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

A couple reports of tree limbs down into wires near Hopewell Twp. Time estimated from radar.

Thunderstorm Wind in MONMOUTH, NEW JERSEY
From 01-JUL-21 17:02:00 to 01-JUL-21 17:02:00 (EST-5)
Location: MARLBORO
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

A few reports of downed trees and wires near Dutch Lane Rd and Austen Ct. Time estimated from radar.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 01-JUL-21 16:39:00 to 01-JUL-21 16:39:00 (EST-5)
Location: PRESIDENTIAL LAKES
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Wires were downed on Locust Trail in Browns Mills. Time estimated from radar.

Thunderstorm Wind in OCEAN, NEW JERSEY
From 01-JUL-21 17:20:00 to 01-JUL-21 17:20:00 (EST-5)
Location: OSBORNSVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Several reports of downed wires in Brick Twp and the Leisure Village area. Time estimated from radar.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 01-JUL-21 16:19:00 to 01-JUL-21 16:19:00 (EST-5)
Location: BORDENTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Wires were downed on Grand Ave. Time estimated from radar.

Thunderstorm Wind in SALEM, NEW JERSEY
From 01-JUL-21 16:06:00 to 01-JUL-21 16:06:00 (EST-5)
Location: COHANSEY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Power lines were downed near Alloway Friesburg Rd. Time estimated from radar.

Thunderstorm Wind in CAPE MAY, NEW JERSEY
From 01-JUL-21 16:35:00 to 01-JUL-21 16:35:00 (EST-5)
Location: WOODBINE JCT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Several reports of power lines down in the area. Time estimated from radar.

Thunderstorm Wind in MONMOUTH, NEW JERSEY
From 01-JUL-21 17:25:00 to 01-JUL-21 17:25:00 (EST-5)
Location: ALLENHURST
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Several reports of downed power lines in the Wanamassa and Deal areas. Time estimated from radar.

Thunderstorm Wind in MONMOUTH, NEW JERSEY
From 01-JUL-21 16:27:00 to 01-JUL-21 16:27:00 (EST-5)
Location: ARNEYTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Wires were downed near Crosswick Creek Steam Valley in Cream Ridge. Time estimated from radar.

Thunderstorm Wind in CAPE MAY, NEW JERSEY
From 01-JUL-21 16:40:00 to 01-JUL-21 16:40:00 (EST-5)
Location: PETERSBURG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Wires were downed near Dennisville-Petersburg Rd in Petersburg. Time estimated from radar.