A slow moving backdoor cold front drifted southwest through the mid-Atlantic region on July 6. Meanwhile, a shortwave vorticity impulse, one of several in a series, moved across the region during the day. A very hot and humid air mass was present ahead of the backdoor cold front, leading to the development of strong to extreme instability over the region. The approaching upper level disturbance allowed for the development of moderate wind shear over the region. Combined with the front, it also acted as a trigger mechanism for convection. Severe thunderstorms developed by early afternoon over eastern PA and southern and central New Jersey. These storms produced strong outflow boundaries which served to initiate additional severe convection. The result was a ring of fire in which outflow steadily propagated outward in all directions. This caused severe weather to spread radially outward from its origin near Philadelphia to much of New Jersey, other portions of eastern Pennsylvania, and Delmarva.

Thunderstorm Wind in CAMDEN, NEW JERSEY
From 06-JUL-20 13:06:00 to 06-JUL-20 13:06:00 (EST-5)
Location: CHERRY HILL
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Several reports of trees and wires down in the Springdale, Society Hill, and Ellisburg areas. Time estimated from radar.

Thunderstorm Wind in CAMDEN, NEW JERSEY
From 06-JUL-20 13:06:00 to 06-JUL-20 13:06:00 (EST-5)
Location: ERLTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

A tree and wires were downed near Locust Ave in Haddon Twp. Time estimated from radar.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 06-JUL-20 13:08:00 to 06-JUL-20 13:08:00 (EST-5)
Location: MARLTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Several reports of downed tree limbs and wires in the Evesboro and Marlton areas. Time estimated from radar.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 06-JUL-20 13:11:00 to 06-JUL-20 13:11:00 (EST-5)
Location: LAKE PINE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Reports of tree limbs and wires downed near Georgia Trail in Medford. Time estimated from radar.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 06-JUL-20 13:14:00 to 06-JUL-20 13:14:00 (EST-5)
Location: MEDFORD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Tree limbs and wires were downed near Branch St in Medford. Time estimated from radar.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 06-JUL-20 13:15:00 to 06-JUL-20 13:15:00 (EST-5)
Location: MARLTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Downed wires closed NJ-73 in both directions between Brick Rd and Maple Ave. All lanes were closed and detoured. Time estimated from radar.

Funnel Cloud in ATLANTIC, NEW JERSEY
From 06-JUL-20 17:16:00 to 06-JUL-20 17:16:00 (EST-5)
Location: PENNY POT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A video was received of a funnel cloud near Buena, looking towards Folsom. Time provided by the individual who shot the video.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 06-JUL-20 13:20:00 to 06-JUL-20 13:20:00 (EST-5)
Location: MARLTON
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Multiple trees and wires were downed on NJ-73 in Marlton. Report via social media. Time estimated from radar.

Thunderstorm Wind in OCEAN, NEW JERSEY
From 06-JUL-20 13:45:00 to 06-JUL-20 13:45:00 (EST-5)
Location: TOMS RIVER ARPT
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Hail in MERCER, NEW JERSEY
From 06-JUL-20 12:48:00 to 06-JUL-20 12:48:00 (EST-5)
Location: WHITE HORSE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An mPing report of penny size hail.

Hail in MERCER, NEW JERSEY
From 06-JUL-20 13:00:00 to 06-JUL-20 13:00:00 (EST-5)
Location: WHITE HORSE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Report with photo of quarter size hail.

Thunderstorm Wind in OCEAN, NEW JERSEY
From 06-JUL-20 13:45:00 to 06-JUL-20 13:45:00 (EST-5)
Location: TOMS RIVER ARPT
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by NJweathernet site NJ66.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 06-JUL-20 14:30:00 to 06-JUL-20 14:30:00 (EST-5)
Location: (MMU)MORRISTOWN MUNI
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Trees and wires were downed near the intersection of Whippany Rd and Ford Hill Rd near Whippany. Time estimated from radar.

Hail in MERCER, NEW JERSEY
From 06-JUL-20 13:00:00 to 06-JUL-20 13:00:00 (EST-5)
Location: HAMILTON SQUARE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Mainly penny size hail but a few hailstones to quarter size. Hail fell for around 15 minutes.

Hail in MONMOUTH, NEW JERSEY
From 06-JUL-20 13:05:00 to 06-JUL-20 13:05:00 (EST-5)
Location: ALLENTOWN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via social media with photo of hail to around quarter size. Time estimated from radar.

Thunderstorm Wind in CUMBERLAND, NEW JERSEY
From 06-JUL-20 16:30:00 to 06-JUL-20 16:30:00 (EST-5)
Location: FORTESCUE
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by NJWeathernet site NJ67.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 06-JUL-20 13:23:00 to 06-JUL-20 13:23:00 (EST-5)
Location: LUMBERTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

A tree fell on wires on Creek Rd at NJ-38 in Hainsesport. Time estimated from radar.

Hail in MERCER, NEW JERSEY
From 06-JUL-20 13:10:00 to 06-JUL-20 13:10:00 (EST-5)
Location: MERCERVILLE
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via social media with photo of hail a little larger than quarter size. Time estimated from radar.

Hail in MERCER, NEW JERSEY
From 06-JUL-20 13:10:00 to 06-JUL-20 13:10:00 (EST-5)
Location: WHITE HORSE
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Report via social media with photos of ping pong ball size hail.

Thunderstorm Wind in CAMDEN, NEW JERSEY
From 06-JUL-20 13:32:00 to 06-JUL-20 13:32:00 (EST-5)
Location: KIRKWOOD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed in Lindenwold. Time estimated from radar.

Thunderstorm Wind in MONMOUTH, NEW JERSEY
From 06-JUL-20 13:40:00 to 06-JUL-20 13:40:00 (EST-5)
Location: ENGLISHTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Tree limbs and wires were downed near Wilson Ave in Englishtown. Time estimated from radar.

Hail in MERCER, NEW JERSEY
From 06-JUL-20 13:10:00 to 06-JUL-20 13:10:00 (EST-5)
Location: HAMILTON SQUARE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via social media with photos of hail to around quarter size.

Hail in OCEAN, NEW JERSEY
From 06-JUL-20 13:26:00 to 06-JUL-20 13:26:00 (EST-5)
Location: TOMS RIVER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An mPing report of quarter size hail.

Thunderstorm Wind in MONMOUTH, NEW JERSEY
From 06-JUL-20 14:00:00 to 06-JUL-20 14:00:00 (EST-5)
Location: ALLENWOOD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Ridgewood Rd in Allenwood. Time estimated from radar.

Thunderstorm Wind in MONMOUTH, NEW JERSEY
From 06-JUL-20 14:08:00 to 06-JUL-20 14:08:00 (EST-5)
Location: SEA GIRT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Wires were downed near Sea Girt Ave. Time estimated from radar.

Hail in MONMOUTH, NEW JERSEY
From 06-JUL-20 13:40:00 to 06-JUL-20 13:40:00 (EST-5)
Location: FREEHOLD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via social media with photos of penny size hail.

Hail in MONMOUTH, NEW JERSEY
From 06-JUL-20 13:49:00 to 06-JUL-20 13:49:00 (EST-5)
Location: GORDONS CORNER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An mPing report of penny size hail.

Thunderstorm Wind in MIDDLESEX, NEW JERSEY
From 06-JUL-20 14:10:00 to 06-JUL-20 14:10:00 (EST-5)
Location: SOUTH OLD BRIDGE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Pleasant Valley Rd in Old Bridge. Time estimated from radar.

Thunderstorm Wind in MIDDLESEX, NEW JERSEY
From 06-JUL-20 14:28:00 to 06-JUL-20 14:28:00 (EST-5)
Location: POTTER
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

A tree was downed on wires near Ellis Parkway in Colonia. Time estimated from radar.

Hail in OCEAN, NEW JERSEY
From 06-JUL-20 13:52:00 to 06-JUL-20 13:52:00 (EST-5)
Location: LAKEWOOD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Penny size hail reported by CoCoRaHS observer NJ-MN-64. Hail fell for around 15 minutes.

Hail in SOMERSET, NEW JERSEY
From 06-JUL-20 13:54:00 to 06-JUL-20 13:54:00 (EST-5)
Location: CLYDE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Hail of around nickel size fell for about 3 minutes. Reported by CoCoRaHS observer NJ-SM-12.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 06-JUL-20 14:37:00 to 06-JUL-20 14:37:00 (EST-5)
Location: MORRISTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Trees and wires were downed in and near Morristown. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 06-JUL-20 14:37:00 to 06-JUL-20 14:37:00 (EST-5)
Location: MORRIS PLAINS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Trees and wires were downed in and near Morris Plains. Time estimated from radar.

Hail in OCEAN, NEW JERSEY
From 06-JUL-20 14:00:00 to 06-JUL-20 14:00:00 (EST-5)
Location: PARKWAY PINES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via social media with photos of quarter size hail. Time estimated from radar.

Hail in MIDDLESEX, NEW JERSEY
From 06-JUL-20 14:20:00 to 06-JUL-20 14:20:00 (EST-5)
Location: HOPELAWN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported quarter size hail.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 06-JUL-20 14:38:00 to 06-JUL-20 14:38:00 (EST-5)
Location: CONVENT STATION
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Trees and wires were downed in Morris Twp. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 06-JUL-20 14:38:00 to 06-JUL-20 14:38:00 (EST-5)
Location: MORRIS PLAINS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Speedwell Ave in Morris Plains. Time estimated from radar.

Hail in MIDDLESEX, NEW JERSEY
From 06-JUL-20 14:20:00 to 06-JUL-20 14:20:00 (EST-5)
Location: SOUTH PLAINFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported quarter size hail.

Hail in MIDDLESEX, NEW JERSEY
From 06-JUL-20 14:24:00 to 06-JUL-20 14:24:00 (EST-5)
Location: KEASBEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via social media with a video of hail to about quarter size. Some small dents on vehicles were reported. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 06-JUL-20 14:40:00 to 06-JUL-20 14:40:00 (EST-5)
Location: MORRISTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Morris Ave in Morristown. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 06-JUL-20 14:43:00 to 06-JUL-20 14:43:00 (EST-5)
Location: NEW VERNON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Jenks Hill Rd in New Vernon. Time estimated from radar.

Hail in MIDDLESEX, NEW JERSEY
From 06-JUL-20 14:25:00 to 06-JUL-20 14:25:00 (EST-5)
Location: EDISON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported quarter to ping pong ball size hail.

Hail in MIDDLESEX, NEW JERSEY
From 06-JUL-20 14:30:00 to 06-JUL-20 14:30:00 (EST-5)
Location: AVENEL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported nickel to quarter size hail.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 06-JUL-20 14:43:00 to 06-JUL-20 14:43:00 (EST-5)
Location: MENDHAM
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Power lines were downed in Mendham. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 06-JUL-20 14:48:00 to 06-JUL-20 14:48:00 (EST-5)
Location: GLEN ALPIN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and wires were downed near Mount Kemble Ave in New Vernon. Time estimated from radar.

Hail in MORRIS, NEW JERSEY
From 06-JUL-20 14:36:00 to 06-JUL-20 14:36:00 (EST-5)
Location: CONVENT STATION
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail occurred at Ginty Field in Morristown. Time estimated from radar and nearby hail reports.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 06-JUL-20 11:51:00 to 06-JUL-20 11:51:00 (EST-5)
Location: RIVERSIDE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Wires downed near Riverside Twp High School. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 06-JUL-20 14:55:00 to 06-JUL-20 14:55:00 (EST-5)
Location: CONVENT STATION
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A large tree was downed on South St. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 06-JUL-20 14:55:00 to 06-JUL-20 14:55:00 (EST-5)
Location: MORRISTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A tree was downed on Maple Ave. Time estimated from radar.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 06-JUL-20 12:47:00 to 06-JUL-20 12:47:00 (EST-5)
Location: MT HOLLY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Wires were downed near Green St in Mount Holly. Time estimated from radar.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 06-JUL-20 12:53:00 to 06-JUL-20 12:53:00 (EST-5)
Location: MT HOLLY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

A tree and wires were downed near Ashley Ln in Lumberton. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 06-JUL-20 15:00:00 to 06-JUL-20 15:00:00 (EST-5)
Location: CONVENT STATION
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

A tree was downed on Madison Ave. Time estimated from radar.

Thunderstorm Wind in CAMDEN, NEW JERSEY
From 06-JUL-20 12:55:00 to 06-JUL-20 12:55:00 (EST-5)
Location: CHERRY HILL
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Tree limbs and wires were downed near Columbia Blvd in Cherry Hill. Time estimated from radar.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 06-JUL-20 13:00:00 to 06-JUL-20 13:00:00 (EST-5)
Location: JOBSTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Wires were downed near Monmouth Rd in Springfield Twp. Time estimated from radar.