A strong cold front approached the mid-Atlantic coast on April 21. Ahead of the front, modest instability developed in a strongly sheared and strongly forced environment. This led to the development of convection along and ahead of the front as it moved through during the mid afternoon hours. Mixed modes of linear and discrete storm cells were present, some of which became strong to severe. Scattered instances of hail and wind damage were reported across much of the eastern mid-Atlantic.

Thunderstorm Wind in CUMBERLAND, NEW JERSEY
From 21-APR-21 13:10:00 to 21-APR-21 13:10:00 (EST-5)
Location: FORTESCUE
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by Fortescue NJ Weathernet site.

Thunderstorm Wind in OCEAN, NEW JERSEY
From 21-APR-21 14:16:00 to 21-APR-21 14:16:00 (EST-5)
Location: BEACH HAVEN
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by cwop site EW4321.

Thunderstorm Wind in HUNTERDON, NEW JERSEY
From 21-APR-21 12:10:00 to 21-APR-21 12:10:00 (EST-5)
Location: MILFORD CUMULUS RIDG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

A tree was downed onto wires on Rick Rd. Time estimated from radar.

Thunderstorm Wind in HUNTERDON, NEW JERSEY
From 21-APR-21 12:20:00 to 21-APR-21 12:20:00 (EST-5)
Location: CLINTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was downed on the I-78 eastbound ramp to Exit 15. One lane was closed. Time estimated from radar.

Thunderstorm Wind in SOMERSET, NEW JERSEY
From 21-APR-21 12:48:00 to 21-APR-21 12:48:00 (EST-5)
Location: NORTH BRANCH
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A utility pole was downed on US-22 eastbound, west of Readington Rd. All lanes were closed. Time estimated from radar.

Thunderstorm Wind in SOMERSET, NEW JERSEY
From 21-APR-21 12:55:00 to 21-APR-21 12:55:00 (EST-5)
Location: PLUCKEMIN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tree limbs were reported down. Time estimated from radar.

Thunderstorm Wind in ATLANTIC, NEW JERSEY
From 21-APR-21 14:00:00 to 21-APR-21 14:00:00 (EST-5)
Location: OCEANVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees were downed at 6th Ave and Ridgewood St. Emergency management report relayed by broadcast media. Time estimated from radar.

Hail in BURLINGTON, NEW JERSEY
From 21-APR-21 12:48:00 to 21-APR-21 12:48:00 (EST-5)
Location: FAIRVIEW
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Social media report of mostly pea size hail with a few stones up to nickel size.

Hail in OCEAN, NEW JERSEY
From 21-APR-21 13:22:00 to 21-APR-21 13:22:00 (EST-5)
Location: KESWICK GROVE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An mPing report of quarter size hail. Time estimated from radar.

Hail in CUMBERLAND, NEW JERSEY
From 21-APR-21 13:23:00 to 21-APR-21 13:23:00 (EST-5)
Location: MILLVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in CUMBERLAND, NEW JERSEY
From 21-APR-21 13:24:00 to 21-APR-21 13:24:00 (EST-5)
Location: MILLVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Social media report. Time estimated from radar.

Thunderstorm Wind in ATLANTIC, NEW JERSEY
From 21-APR-21 13:54:00 to 21-APR-21 13:54:00 (EST-5)
Location: (ACY)ATLANTIC CITY A
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Measured at Atlantic City International Airport (KACY).

Thunderstorm Wind in OCEAN, NEW JERSEY
From 21-APR-21 14:10:00 to 21-APR-21 14:10:00 (EST-5)
Location: BEACH HAVEN
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Measured by personal weather station knjlongb89.

Thunderstorm Wind in OCEAN, NEW JERSEY
From 21-APR-21 14:12:00 to 21-APR-21 14:12:00 (EST-5)
Location: BEACH HAVEN HGTS
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in OCEAN, NEW JERSEY
From 21-APR-21 13:41:00 to 21-APR-21 13:41:00 (EST-5)
Location: SILVERTON
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A garden shed was blown over, a section of vinyl fencing was brought down, and shingles were blown off a house in this area. Report via social media, time estimated from radar.