An impulse riding along a west to east boundary stalled near the Mason-Dixon line produced severe thunderstorms and heavy rain across sections of South Jersey from late afternoon through the evening hours on August 7th. Strong winds knocked down trees, and torrential downpours on ground already saturated from the remnants of Hurricane Isaias produced flash flooding on many roadways and small streams in the area.

Thunderstorm Wind in CUMBERLAND, NEW JERSEY
From 07-AUG-20 18:05:00 to 07-AUG-20 18:05:00 (EST-5)
Location: HUSTED
Magnitude: 77.00 MG
Reported by: Mesonet

Measured gust at Rutgers Agricultural Research and Extension Center in Upper Deerfield, NJ.

Thunderstorm Wind in CUMBERLAND, NEW JERSEY
From 07-AUG-20 18:17:00 to 07-AUG-20 18:17:00 (EST-5)
Location: DEERFIELD STREET
Magnitude: 60.00 MG
Reported by: Trained Spotter

A 69 MPH thunderstorm wind gust measured on Route 77 at mile marker 9.

Flash Flood in GLOUCESTER, NEW JERSEY
From 07-AUG-20 17:55:00 to 07-AUG-20 20:00:00 (EST-5)
Location: BRIDGEPORT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several vehicles were trapped in flood waters in Logan Township.

Flash Flood in GLOUCESTER, NEW JERSEY
From 07-AUG-20 18:00:00 to 07-AUG-20 20:00:00 (EST-5)
Location: SWEDESBORO
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Widespread roadway flooding occurred in Swedesboro.  A section of Oliphant's Mill Road in Woolwich Township was washed away by flood waters.  The New Jersey Turnpike was closed in Woolwich Township, south of Interchange 2, due to flooding.

Flash Flood in SALEM, NEW JERSEY
From 07-AUG-20 20:20:00 to 07-AUG-20 22:30:00 (EST-5)
Location: WOODSTOWN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Minor flooding occurred along the Salem River in the Woodstown area.

Flash Flood in ATLANTIC, NEW JERSEY
From 07-AUG-20 19:05:00 to 07-AUG-20 21:00:00 (EST-5)
Location: LANDISVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

US 40 was closed between Weymouth Malaga Road and Summer Road in Buena due to flooding.

Flash Flood in CUMBERLAND, NEW JERSEY
From 07-AUG-20 18:45:00 to 07-AUG-20 21:00:00 (EST-5)
Location: VINELAND ARPT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

NJ Route 47 was closed at Oak Road in Vineland due to flooding.

Flash Flood in CAPE MAY, NEW JERSEY
From 07-AUG-20 20:20:00 to 07-AUG-20 22:00:00 (EST-5)
Location: NORTH WILDWOOD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

NJ Route 147 was closed at Maryland Avenue in North Wildwood due to flooding.

Flash Flood in ATLANTIC, NEW JERSEY
From 07-AUG-20 19:40:00 to 07-AUG-20 21:00:00 (EST-5)
Location: CARDIFF
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

US Route 40 was closed at English Creek Avenue in Egg Harbor Township due to flooding.

Flash Flood in ATLANTIC, NEW JERSEY
From 07-AUG-20 20:20:00 to 07-AUG-20 21:00:00 (EST-5)
Location: (ACY)ATLANTIC CITY A
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

US Route 30 was closed west of the Garden State Parkway in Galloway Township due to flooding.

Flash Flood in GLOUCESTER, NEW JERSEY
From 07-AUG-20 18:50:00 to 07-AUG-20 21:00:00 (EST-5)
Location: MALAGA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

NJ Route 47 was closed north of US Route 40 in Franklin Township due to flooding.

Flash Flood in MERCER, NEW JERSEY
From 07-AUG-20 18:10:00 to 07-AUG-20 20:00:00 (EST-5)
Location: TITUSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

NJ Route 29 was closed at Pleasant Valley Road in Hopewell Township due to flooding.

Thunderstorm Wind in SALEM, NEW JERSEY
From 07-AUG-20 17:50:00 to 07-AUG-20 17:50:00 (EST-5)
Location: WOODSTOWN
Magnitude: 50.00 EG
Reported by: Public

Trees down in the Woodstown area. Time estimated from radar.

Flash Flood in GLOUCESTER, NEW JERSEY
From 07-AUG-20 18:15:00 to 07-AUG-20 20:00:00 (EST-5)
Location: HARRISONVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

NJ Route 45 was closed near Harrisonville Road in South Harrison Township due to flooding.

Flash Flood in SALEM, NEW JERSEY
From 07-AUG-20 18:05:00 to 07-AUG-20 20:00:00 (EST-5)
Location: WOODSTOWN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

US Route 40 was closed west of Kings Highway in Pilesgrove Township due to flooding.

Thunderstorm Wind in GLOUCESTER, NEW JERSEY
From 07-AUG-20 18:00:00 to 07-AUG-20 18:00:00 (EST-5)
Location: NEW SHARON
Magnitude: 50.00 EG
Reported by: Department of Highways

Downed tree, pole, and wires on NJ 41, both directions, north of Good Intent Road in Deptford Township.  All lanes closed. Time estimated from radar.

Thunderstorm Wind in CAPE MAY, NEW JERSEY
From 07-AUG-20 19:50:00 to 07-AUG-20 19:50:00 (EST-5)
Location: PALERMO
Magnitude: 50.00 EG
Reported by: Trained Spotter

Tree down on Garden State Parkway near mile marker 21.9 near Seaville.  Time estimated from radar.

Thunderstorm Wind in ATLANTIC, NEW JERSEY
From 07-AUG-20 18:45:00 to 07-AUG-20 18:45:00 (EST-5)
Location: LANDISVILLE
Magnitude: 50.00 EG
Reported by: Public

Telephone poles snapped in half with wires down on Brewster and Forest Grove Roads.  Time estimated from radar.