A diffuse, slow moving frontal boundary was present over the mid-Atlantic on August 3 as an upper level trough also approached from the west. Meanwhile, Hurricane Isaias was steadily approaching from the south, with tropical moisture beginning to overspread the region. The result was a warm and humid day on August 3. This created an unstable environment, and forcing from the frontal boundary as well as the approaching trough helped to trigger afternoon thunderstorm development. Shear also increased as mid level winds increased ahead of the trough and Isaias. This led to a considerable severe weather event in advance of Isaias, with multiple clusters of thunderstorms producing scattered and in some cases significant wind damage over New Jersey.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 03-AUG-20 19:47:00 to 03-AUG-20 19:47:00 (EST-5)
Location: CHESTER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A tree was downed on Cooper Ln near Tiger Brook Park in Chester. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 03-AUG-20 20:11:00 to 03-AUG-20 20:11:00 (EST-5)
Location: LAKE HIAWATHA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees and wires were downed near Minnehaha Blvd in Lake Hiawatha. Time estimated from radar.

Thunderstorm Wind in SOMERSET, NEW JERSEY
From 03-AUG-20 19:30:00 to 03-AUG-20 19:30:00 (EST-5)
Location: BEDMINSTER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Trees were reported down in Bedminster. Time estimated from radar.

Thunderstorm Wind in MONMOUTH, NEW JERSEY
From 03-AUG-20 19:32:00 to 03-AUG-20 19:32:00 (EST-5)
Location: SEA BRIGHT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Hartshore Ln in Rumson. Time estimated from radar.

Thunderstorm Wind in MIDDLESEX, NEW JERSEY
From 03-AUG-20 19:45:00 to 03-AUG-20 19:45:00 (EST-5)
Location: COLONIA
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Hill Rd and Lincoln Ave in Iselin. Time estimated from radar.

Thunderstorm Wind in GLOUCESTER, NEW JERSEY
From 03-AUG-20 18:01:00 to 03-AUG-20 18:01:00 (EST-5)
Location: PITMAN ARPT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Power lines were downed near Mantua Blvd in Sewell. Time estimated from radar.

Thunderstorm Wind in CAMDEN, NEW JERSEY
From 03-AUG-20 18:10:00 to 03-AUG-20 18:10:00 (EST-5)
Location: HADDON HILLS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Wires were reported down in the area. Time estimated from radar.

Thunderstorm Wind in CAMDEN, NEW JERSEY
From 03-AUG-20 18:18:00 to 03-AUG-20 18:18:00 (EST-5)
Location: HADDONFIELD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Cotswold Ln in Cherry Hill. Time estimated from radar.

Thunderstorm Wind in CAMDEN, NEW JERSEY
From 03-AUG-20 18:20:00 to 03-AUG-20 18:20:00 (EST-5)
Location: WESTMONT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Trees were downed on Burnt Mills Rd and Walt Whitman Blvd. Time estimated from radar.

Thunderstorm Wind in OCEAN, NEW JERSEY
From 03-AUG-20 18:55:00 to 03-AUG-20 18:55:00 (EST-5)
Location: TOMS RIVER ARPT
Magnitude: 65.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by an NJ Weathernet station.

Thunderstorm Wind in OCEAN, NEW JERSEY
From 03-AUG-20 18:37:00 to 03-AUG-20 18:37:00 (EST-5)
Location: CRESTWOOD VLG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Power lines were downed near Lacey Rd in Roosevelt City. Time estimated from radar.

Thunderstorm Wind in OCEAN, NEW JERSEY
From 03-AUG-20 18:50:00 to 03-AUG-20 18:50:00 (EST-5)
Location: PLEASANT PLAINS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Morningside St and 10th Ave near Pine Lake. Time estimated from radar.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 03-AUG-20 18:54:00 to 03-AUG-20 18:54:00 (EST-5)
Location: CROSSWICKS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Ward Ave in Crosswicks. Time estimated from radar.

Thunderstorm Wind in MERCER, NEW JERSEY
From 03-AUG-20 19:10:00 to 03-AUG-20 19:10:00 (EST-5)
Location: PRINCETON JCT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Hendrickson Dr in West Windsor. Time estimated from radar.

Thunderstorm Wind in OCEAN, NEW JERSEY
From 03-AUG-20 19:11:00 to 03-AUG-20 19:11:00 (EST-5)
Location: TOMS RIVER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree and wires were downed onto NJ-37 in both directions at CR-39. Time estimated from radar.

Thunderstorm Wind in MIDDLESEX, NEW JERSEY
From 03-AUG-20 19:15:00 to 03-AUG-20 19:15:00 (EST-5)
Location: JAMESBURG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

At least one tree was downed in Monroe. Time estimated from radar.

Thunderstorm Wind in OCEAN, NEW JERSEY
From 03-AUG-20 18:51:00 to 03-AUG-20 18:51:00 (EST-5)
Location: TOMS RIVER ARPT
Magnitude: 58.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Measured at Miller Air Park.

Thunderstorm Wind in OCEAN, NEW JERSEY
From 03-AUG-20 18:59:00 to 03-AUG-20 18:59:00 (EST-5)
Location: TOMS RIVER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter estimated 60 mph winds along with penny size hail and power outages. Time estimated from radar.

Thunderstorm Wind in SOMERSET, NEW JERSEY
From 03-AUG-20 19:17:00 to 03-AUG-20 19:17:00 (EST-5)
Location: NESHANIC STATION
Magnitude: 51.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A member of the public estimated 60 mph wind gusts.

Thunderstorm Wind in OCEAN, NEW JERSEY
From 03-AUG-20 19:18:00 to 03-AUG-20 19:18:00 (EST-5)
Location: MANTOLOKING
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in OCEAN, NEW JERSEY
From 03-AUG-20 19:19:00 to 03-AUG-20 19:19:00 (EST-5)
Location: CHADWICK
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by a Weatherflow sensor.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 03-AUG-20 18:33:00 to 03-AUG-20 18:33:00 (EST-5)
Location: HARTFORD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

An NWS employee estimated 60 mph wind gusts along with minor tree damage.

Thunderstorm Wind in MONMOUTH, NEW JERSEY
From 03-AUG-20 19:19:00 to 03-AUG-20 19:19:00 (EST-5)
Location: BRADLEY BEACH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Corlies Ave in Neptune City. Time estimated from radar.

Thunderstorm Wind in MONMOUTH, NEW JERSEY
From 03-AUG-20 19:16:00 to 03-AUG-20 19:16:00 (EST-5)
Location: BRADLEY BEACH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was downed on the NJ-33 westbound ramp to NJ-18 in Neptune Twp. Time estimated from radar.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 03-AUG-20 18:35:00 to 03-AUG-20 18:35:00 (EST-5)
Location: MT LAUREL
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Siding was blown off a building in Mount Laurel.

Thunderstorm Wind in SOMERSET, NEW JERSEY
From 03-AUG-20 19:15:00 to 03-AUG-20 19:15:00 (EST-5)
Location: BRANCHBURG PARK
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Trees were reported down in Branchburg. Time estimated from radar.

Thunderstorm Wind in MONMOUTH, NEW JERSEY
From 03-AUG-20 19:31:00 to 03-AUG-20 19:31:00 (EST-5)
Location: RUMSON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Heathcliff Rd in Rumson. Time estimated from radar.