Hot and humid conditions existed over the mid-Atlantic on July 6, with a cold front well northwest over the Great Lakes and southern Canada. As temperatures rose into the 90s with dew points in the upper 60s and low 70s, strong instability built over the region. A pre-frontal trough and a fast moving upper level disturbance provided some lift, which helped convection develop by mid afternoon. Convection was initially concentrated over northern Pennsylvania and New York, near the better forcing, but propagated southeastward with time. Shear was weak to moderate but sufficient to allow some storm organization into multi-cellular and linear segments. A number of storms became severe, producing damaging winds and some hail. As storms moved southeast, outflow boundaries moving even further south helped ignite additional convection, some severe, which continued into the early overnight hours. The early overnight convection was also noted to be especially prolific with regard to lightning.

Hail in MIDDLESEX, NEW JERSEY
From 06-JUL-21 20:05:00 to 06-JUL-21 20:05:00 (EST-5)
Location: SAYREVILLE JCT
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MERCER, NEW JERSEY
From 06-JUL-21 20:31:00 to 06-JUL-21 20:31:00 (EST-5)
Location: WOODSVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report via mPing.

Thunderstorm Wind in SOMERSET, NEW JERSEY
From 06-JUL-21 17:18:00 to 06-JUL-21 17:18:00 (EST-5)
Location: BASKING RIDGE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An mPing report of tree or power line damage.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 06-JUL-21 17:10:00 to 06-JUL-21 17:10:00 (EST-5)
Location: BOONTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A tree limb was downed on I-287 southbound near Boonton. Report via social media. Time estimated from radar.

Thunderstorm Wind in SUSSEX, NEW JERSEY
From 06-JUL-21 16:25:00 to 06-JUL-21 16:25:00 (EST-5)
Location: FRANKFORD PLAIN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Multiple trees were downed. Time estimated from radar.

Thunderstorm Wind in SUSSEX, NEW JERSEY
From 06-JUL-21 16:33:00 to 06-JUL-21 16:33:00 (EST-5)
Location: NEWTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Social media report with photos of several large limbs down. Time estimated from radar.

Thunderstorm Wind in MERCER, NEW JERSEY
From 06-JUL-21 20:24:00 to 06-JUL-21 20:24:00 (EST-5)
Location: HOPEWELL
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees were snapped and uprooted in Hopewell Twp. Time estimated from radar.

Thunderstorm Wind in MONMOUTH, NEW JERSEY
From 06-JUL-21 18:20:00 to 06-JUL-21 18:20:00 (EST-5)
Location: FAIR HAVEN
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A large tree was downed and a fence was destroyed. Time estimated from radar.

Thunderstorm Wind in MONMOUTH, NEW JERSEY
From 06-JUL-21 19:15:00 to 06-JUL-21 19:15:00 (EST-5)
Location: MANASQUAN
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured at the Sea Girt Weatherflow site.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 06-JUL-21 16:50:00 to 06-JUL-21 16:50:00 (EST-5)
Location: MILTON
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several trees and wires were downed. North Beach Rd was closed due to downed wires. Brady Rd from North Cherry to Espanong Rd was closed due to downed trees and wires. Time estimated from radar.

Hail in MIDDLESEX, NEW JERSEY
From 06-JUL-21 19:59:00 to 06-JUL-21 19:59:00 (EST-5)
Location: KEASBEY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in SUSSEX, NEW JERSEY
From 06-JUL-21 16:45:00 to 06-JUL-21 16:45:00 (EST-5)
Location: SOUTH OGDENSBURG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees and wires were downed. Time estimated from radar.

Thunderstorm Wind in SUSSEX, NEW JERSEY
From 06-JUL-21 16:42:00 to 06-JUL-21 16:42:00 (EST-5)
Location: FREDON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A few large tree limbs were downed. Report via social media. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 06-JUL-21 17:06:00 to 06-JUL-21 17:06:00 (EST-5)
Location: POMPTON PLAINS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tree limbs brought down power lines in the roadway. Report via social media. Time estimated from radar.

Thunderstorm Wind in SUSSEX, NEW JERSEY
From 06-JUL-21 16:46:00 to 06-JUL-21 16:46:00 (EST-5)
Location: BEAVER LAKE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Social media report with a photo of a large tree limb down on power lines. Time estimated from radar.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 06-JUL-21 19:39:00 to 06-JUL-21 19:39:00 (EST-5)
Location: HARTFORD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An mPing report of large tree limbs or power lines down.

Thunderstorm Wind in SOMERSET, NEW JERSEY
From 06-JUL-21 18:00:00 to 06-JUL-21 18:00:00 (EST-5)
Location: RARITAN
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Seven pine trees were damaged. Report via social media. Time estimated from radar.

Thunderstorm Wind in SUSSEX, NEW JERSEY
From 06-JUL-21 16:55:00 to 06-JUL-21 16:55:00 (EST-5)
Location: HIGHLAND LAKES
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several tree limbs were downed. Time estimated from radar.

Hail in SUSSEX, NEW JERSEY
From 06-JUL-21 16:38:00 to 06-JUL-21 16:38:00 (EST-5)
Location: TRANQUILITY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Spotter submitted a video of hail up to quarter size. Time estimated from radar.

Thunderstorm Wind in SOMERSET, NEW JERSEY
From 06-JUL-21 17:22:00 to 06-JUL-21 17:22:00 (EST-5)
Location: BASKING RIDGE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An mPing report of downed trees.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 06-JUL-21 17:00:00 to 06-JUL-21 17:00:00 (EST-5)
Location: ROCKAWAY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Multiple trees were downed. Time estimated from radar.