A warm front moved through the mid-Atlantic on the morning of April 9. During the late morning and early afternoon, the mid-Atlantic was in a narrow warm sector with a cold front quickly approaching from the west as low pressure tracked through the Great Lakes and then began to redevelop over southern New England. Ahead of the front, a strongly forced and highly sheared environment existed. Heating and moisture were limited in the small warm sector region, but sufficient instability developed to support convective development, and a broken line of showers and thunderstorms moved across the region, causing a considerable amount of wind damage.
That evening, additional severe weather occurred as several post-frontal squalls developed. One of these squalls developed into a low-topped thunderstorm. Steep lapse rates and strong wind profiles allowed this storm to also produce wind damage over southeastern Pennsylvania, northeast Maryland, northern Delaware, and southern New Jersey.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 09-APR-20 12:42:00 to 09-APR-20 12:42:00 (EST-5)
Location: CENTERTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was downed on I-295 north of Exit 43. Lane restrictions were required. Time estimated from radar.

Thunderstorm Wind in MIDDLESEX, NEW JERSEY
From 09-APR-20 12:42:00 to 09-APR-20 12:42:00 (EST-5)
Location: EDISON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees and wires were reported down in Edison and Metuchen. Time estimated from radar.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 09-APR-20 12:45:00 to 09-APR-20 12:45:00 (EST-5)
Location: CENTERTON
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Power lines were downed on Coral Ave in Mount Laurel.

Thunderstorm Wind in MONMOUTH, NEW JERSEY
From 09-APR-20 12:45:00 to 09-APR-20 12:45:00 (EST-5)
Location: ALLENTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A large tree was uprooted. Time estimated from radar.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 09-APR-20 12:46:00 to 09-APR-20 12:46:00 (EST-5)
Location: HAINESPORT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Several large tree limbs were downed with some minor property damage at a residence. Time estimated from radar.

Thunderstorm Wind in MONMOUTH, NEW JERSEY
From 09-APR-20 13:12:00 to 09-APR-20 13:12:00 (EST-5)
Location: ASBURY PARK
Magnitude: 55.00 EG
Crop damage: 0.00K
Reported by: Emergency Manager

A large tree was downed into a home on Heck Ave in Neptune. Heck Ave was closed between Fisher Ave and Myrtle Ave. Time estimated from radar.

Thunderstorm Wind in MONMOUTH, NEW JERSEY
From 09-APR-20 13:15:00 to 09-APR-20 13:15:00 (EST-5)
Location: ASBURY PARK
Magnitude: 55.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

Photos showed a large tree fallen onto a residence. Time estimated from radar.

Thunderstorm Wind in SALEM, NEW JERSEY
From 09-APR-20 23:03:00 to 09-APR-20 23:03:00 (EST-5)
Location: PENNSVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A tree was downed at a residence. Report via social media. Time estimated from radar.

Thunderstorm Wind in SOMERSET, NEW JERSEY
From 09-APR-20 12:30:00 to 09-APR-20 12:30:00 (EST-5)
Location: MARTINSVILLE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An mPing report of wind damage.

Thunderstorm Wind in SALEM, NEW JERSEY
From 09-APR-20 23:06:00 to 09-APR-20 23:06:00 (EST-5)
Location: FRIENDSHIP
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Several reports of downed power lines were received from Penns Grove to Pennsville.

Thunderstorm Wind in SALEM, NEW JERSEY
From 09-APR-20 23:10:00 to 09-APR-20 23:10:00 (EST-5)
Location: SALEM
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Several reports of poles and wires down in and near Salem. Time estimated from radar.

Thunderstorm Wind in CUMBERLAND, NEW JERSEY
From 09-APR-20 23:20:00 to 09-APR-20 23:20:00 (EST-5)
Location: GREENWICH
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Several reports of downed power lines in the area. Time estimated from social media reports and radar.

Thunderstorm Wind in CUMBERLAND, NEW JERSEY
From 09-APR-20 23:25:00 to 09-APR-20 23:25:00 (EST-5)
Location: BRIDGETON
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Several reports of downed power lines. Time estimated from radar.

Thunderstorm Wind in CUMBERLAND, NEW JERSEY
From 09-APR-20 23:30:00 to 09-APR-20 23:30:00 (EST-5)
Location: MILLVILLE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An mPing report of tree limbs down or shingles blown off. Time estimated from radar.

Thunderstorm Wind in CUMBERLAND, NEW JERSEY
From 09-APR-20 23:30:00 to 09-APR-20 23:30:00 (EST-5)
Location: NEW ITALY
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An mPing report of tree limbs down or shingles blown off. Time estimated from radar.

Thunderstorm Wind in CUMBERLAND, NEW JERSEY
From 09-APR-20 23:39:00 to 09-APR-20 23:39:00 (EST-5)
Location: LAUREL LAKE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and power lines were downed in the area. Time estimated from radar.

Thunderstorm Wind in CUMBERLAND, NEW JERSEY
From 09-APR-20 23:39:00 to 09-APR-20 23:39:00 (EST-5)
Location: LAUREL LAKE
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and power lines were downed in the area. Time estimated from radar.

Thunderstorm Wind in CUMBERLAND, NEW JERSEY
From 09-APR-20 23:44:00 to 09-APR-20 23:44:00 (EST-5)
Location: PORT NORRIS
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Utility Company

Trees and power lines were downed near Yock Wock Rd. Time estimated from radar.

Thunderstorm Wind in CAMDEN, NEW JERSEY
From 09-APR-20 12:35:00 to 09-APR-20 12:35:00 (EST-5)
Location: GLOUCESTER CITY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Winds estimated at 50 to 60 mph were reported in Gloucester City. Tree damage was also observed in the area.

Hail in MIDDLESEX, NEW JERSEY
From 09-APR-20 12:35:00 to 09-APR-20 12:35:00 (EST-5)
Location: KINGSTON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Dime to nickel size hail was reported in Kingston. Time estimated from radar.

Thunderstorm Wind in CAMDEN, NEW JERSEY
From 09-APR-20 12:35:00 to 09-APR-20 12:35:00 (EST-5)
Location: MORRISVILLE
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

NJ Weathernet site.

Thunderstorm Wind in SALEM, NEW JERSEY
From 09-APR-20 12:35:00 to 09-APR-20 12:35:00 (EST-5)
Location: HANCOCKS BRIDGE
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

NJWeathernet site.

Thunderstorm Wind in GLOUCESTER, NEW JERSEY
From 09-APR-20 12:50:00 to 09-APR-20 12:50:00 (EST-5)
Location: SEWELL
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Estimated wind gusts of 60 mph.

Hail in SOMERSET, NEW JERSEY
From 09-APR-20 12:42:00 to 09-APR-20 12:42:00 (EST-5)
Location: FLAGTOWN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Mostly pea size hail, but a few stones up to quarter size. Time estimated from radar.

Hail in MIDDLESEX, NEW JERSEY
From 09-APR-20 12:43:00 to 09-APR-20 12:43:00 (EST-5)
Location: PROSPECT PLAINS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An mPing report.

Hail in GLOUCESTER, NEW JERSEY
From 09-APR-20 12:45:00 to 09-APR-20 12:45:00 (EST-5)
Location: JEFFERSON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

An mPing report.

Thunderstorm Wind in MIDDLESEX, NEW JERSEY
From 09-APR-20 12:52:00 to 09-APR-20 12:52:00 (EST-5)
Location: WEST CARTERET
Magnitude: 55.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in MONMOUTH, NEW JERSEY
From 09-APR-20 12:53:00 to 09-APR-20 12:53:00 (EST-5)
Location: KEYPORT
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in OCEAN, NEW JERSEY
From 09-APR-20 13:10:00 to 09-APR-20 13:10:00 (EST-5)
Location: TOMS RIVER ARPT
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Miller Air Park.

Thunderstorm Wind in HUNTERDON, NEW JERSEY
From 09-APR-20 12:06:00 to 09-APR-20 12:06:00 (EST-5)
Location: KINGWOOD
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

A tree was downed on Tumble Falls Rd in Kingwood Twp. Time estimated from radar.

Thunderstorm Wind in SOMERSET, NEW JERSEY
From 09-APR-20 12:30:00 to 09-APR-20 12:30:00 (EST-5)
Location: GRIGGSTOWN
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A large spruce tree was downed across a driveway. Time estimated from radar.

Thunderstorm Wind in OCEAN, NEW JERSEY
From 09-APR-20 13:25:00 to 09-APR-20 13:25:00 (EST-5)
Location: SEASIDE HGTS
Magnitude: 57.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

NJWeathernet site.

Thunderstorm Wind in OCEAN, NEW JERSEY
From 09-APR-20 13:29:00 to 09-APR-20 13:29:00 (EST-5)
Location: BARNEGAT LIGHT
Magnitude: 62.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in OCEAN, NEW JERSEY
From 09-APR-20 13:29:00 to 09-APR-20 13:29:00 (EST-5)
Location: ISLAND BEACH
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 09-APR-20 12:35:00 to 09-APR-20 12:35:00 (EST-5)
Location: FLORENCE
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A downed tree blocked the right lane of the westbound New Jersey Turnpike. Time estimated from radar.

Thunderstorm Wind in CAMDEN, NEW JERSEY
From 09-APR-20 12:35:00 to 09-APR-20 12:35:00 (EST-5)
Location: GLOUCESTER CITY
Magnitude: 55.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

A section of a roof was peeled off with reports of large branches scattered about in the city.

Thunderstorm Wind in OCEAN, NEW JERSEY
From 09-APR-20 13:39:00 to 09-APR-20 13:39:00 (EST-5)
Location: HARVEY CEDARS
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

NJWeathernet site.

Thunderstorm Wind in SALEM, NEW JERSEY
From 09-APR-20 23:15:00 to 09-APR-20 23:15:00 (EST-5)
Location: HANCOCKS BRIDGE
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

NJWeathernet site.

Thunderstorm Wind in CUMBERLAND, NEW JERSEY
From 09-APR-20 23:25:00 to 09-APR-20 23:25:00 (EST-5)
Location: HUSTED
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

NJWeathernet site.

Thunderstorm Wind in MIDDLESEX, NEW JERSEY
From 09-APR-20 12:36:00 to 09-APR-20 12:36:00 (EST-5)
Location: DEANS
Magnitude: 55.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Photos received on social media of trees and power poles downed. Time estimated from radar.

Thunderstorm Wind in SOMERSET, NEW JERSEY
From 09-APR-20 12:36:00 to 09-APR-20 12:36:00 (EST-5)
Location: WATCHUNG
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Parlin Ln was closed due to downed trees and wires. Time estimated from radar.

Thunderstorm Wind in ATLANTIC, NEW JERSEY
From 10-APR-20 00:02:00 to 10-APR-20 00:02:00 (EST-5)
Location: (ACY)ATLANTIC CITY A
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Atlantic City Airport.

Thunderstorm Wind in OCEAN, NEW JERSEY
From 10-APR-20 00:12:00 to 10-APR-20 00:12:00 (EST-5)
Location: BEACH HAVEN HGTS
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 09-APR-20 12:37:00 to 09-APR-20 12:37:00 (EST-5)
Location: HAINESPORT
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Photo received of hardwood tree down.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 09-APR-20 12:37:00 to 09-APR-20 12:37:00 (EST-5)
Location: BEVERLY
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Fencing was blown over with several large tree limbs down at a residence. Time estimated from radar.

Thunderstorm Wind in CAMDEN, NEW JERSEY
From 09-APR-20 12:39:00 to 09-APR-20 12:39:00 (EST-5)
Location: CHERRY HILL
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

A tree was downed on I-295 south of Exit 34. Lane restrictions were required. Time estimated from radar.

Thunderstorm Wind in BURLINGTON, NEW JERSEY
From 09-APR-20 12:40:00 to 09-APR-20 12:40:00 (EST-5)
Location: RANCOCAS WOODS
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Downed trees caused at least one road closure in the area. Time estimated from radar.