A cold front approaching from the west, in combination with a pre-frontal lee-side trough parked over the mid-Atlantic region, sparked afternoon and evening thunderstorms across many parts of New Jersey. In addition to strong to severe winds and heavy rain, a few thunderstorms contained large hail.

Thunderstorm Wind in SUSSEX, NEW JERSEY
From 28-JUN-20 16:22:00 to 28-JUN-20 16:22:00 (EST-5)
Location: GLENWOOD
Magnitude: 50.00 EG
Reported by: Utility Company

Several reports of power lines down and power outages in the Vernon Valley area northwest of Wawayanda State Park.  Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 28-JUN-20 17:07:00 to 28-JUN-20 17:07:00 (EST-5)
Location: MONTVILLE
Magnitude: 50.00 EG
Reported by: Trained Spotter

Power outages in Montville. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 28-JUN-20 17:11:00 to 28-JUN-20 17:11:00 (EST-5)
Location: LAKE HIAWATHA
Magnitude: 50.00 EG
Reported by: Utility Company

Widespread power outages reported southeast of Boonton.  Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 28-JUN-20 17:11:00 to 28-JUN-20 17:11:00 (EST-5)
Location: TOWACO
Magnitude: 50.00 EG
Reported by: Utility Company

Several reports of downed power lines near Lincoln Park.  Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 28-JUN-20 17:19:00 to 28-JUN-20 17:19:00 (EST-5)
Location: LINCOLN PARK
Magnitude: 50.00 EG
Reported by: Utility Company

Downed power lines reported near Pequannock River Park. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 28-JUN-20 17:23:00 to 28-JUN-20 17:23:00 (EST-5)
Location: DENVILLE
Magnitude: 50.00 EG
Reported by: Utility Company

Downed power lines in the area of Crane Road near Denville. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 28-JUN-20 17:26:00 to 28-JUN-20 17:26:00 (EST-5)
Location: TROY HILLS
Magnitude: 50.00 EG
Reported by: Utility Company

Widespread power outages reported near Troy Hills.  Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 28-JUN-20 17:26:00 to 28-JUN-20 17:26:00 (EST-5)
Location: LAKE HIAWATHA
Magnitude: 50.00 EG
Reported by: Utility Company

Widespread power outages reported around Lake Hiawatha. Time estimated from radar.

Thunderstorm Wind in MORRIS, NEW JERSEY
From 28-JUN-20 17:30:00 to 28-JUN-20 17:30:00 (EST-5)
Location: HANOVER NECK
Magnitude: 50.00 EG
Reported by: Department of Highways

Downed tree on Interstate 280 westbound ramp Exit 1W. Ramp Closed. Time estimated from radar.

Hail in SUSSEX, NEW JERSEY
From 28-JUN-20 12:31:00 to 28-JUN-20 12:31:00 (EST-5)
Location: COLESVILLE
Magnitude: 0.88 
Reported by: Public

Dime to nickle size hail on river road in Montague. Time estimated from radar.

Hail in SUSSEX, NEW JERSEY
From 28-JUN-20 12:38:00 to 28-JUN-20 12:38:00 (EST-5)
Location: COLESVILLE
Magnitude: 1.50 
Reported by: Public

Social media video showing hail the size of ping pong balls right on the NY/NJ state border at Montague. Time estimated from radar.

Hail in MORRIS, NEW JERSEY
From 28-JUN-20 17:20:00 to 28-JUN-20 17:20:00 (EST-5)
Location: DENVILLE
Magnitude: 0.88 
Reported by: CoCoRaHS

Dime to nickle size hail reported by a CoCoRaHS observer near Denville.