A pre-frontal trough followed by a potent cold front caused multiple severe thunderstorms some of which produced flash flooding across Northeast New Jersey.

Thunderstorm Wind in HUDSON, NEW JERSEY
From 26-JUL-09 17:10:00 to 26-JUL-09 17:10:00 (EST-5)
Location: EAST NEWARK
Magnitude: 52.00 EG
Property damage: 11.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A tree fell down at 29 Davis Avenue, landing on 2 cars and also damaging a shed.

Thunderstorm Wind in HUDSON, NEW JERSEY
From 26-JUL-09 17:14:00 to 26-JUL-09 17:14:00 (EST-5)
Location: EAST NEWARK
Magnitude: 61.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees and power lines were reported down.

Thunderstorm Wind in HUDSON, NEW JERSEY
From 26-JUL-09 17:15:00 to 26-JUL-09 17:15:00 (EST-5)
Location: EAST NEWARK
Magnitude: 52.00 EG
Property damage: 2.50K
Crop damage: 0.00K
Reported by: Trained Spotter

Wires were reported down at the intersection of Cape May Street and Franklin Radgers Boulevard.

Thunderstorm Wind in HUDSON, NEW JERSEY
From 26-JUL-09 17:25:00 to 26-JUL-09 17:25:00 (EST-5)
Location: JERSEY CITY
Magnitude: 52.00 EG
Property damage: 2.50K
Crop damage: 0.00K
Reported by: Trained Spotter

Power lines were reported down.

Flash Flood in HUDSON, NEW JERSEY
From 26-JUL-09 17:10:00 to 26-JUL-09 17:25:00 (EST-5)
Location: HARRISON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Passaic Ave. in Kearny was closed due to flooding.

Flash Flood in ESSEX, NEW JERSEY
From 26-JUL-09 17:20:00 to 26-JUL-09 17:35:00 (EST-5)
Location: BRILLS JCT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Cars were stuck in high water at the intersection of Middlesex Blvd. and Frank E. Rodgers Blvd. in East Newark. The intersection was eventually closed by law enforcement.

Hail in UNION, NEW JERSEY
From 26-JUL-09 16:52:00 to 26-JUL-09 16:52:00 (EST-5)
Location: SPRINGFIELD
Magnitude: 1.00 
Reported by: Trained Spotter

Quarter size hail was reported in Springfield.

Hail in ESSEX, NEW JERSEY
From 26-JUL-09 16:53:00 to 26-JUL-09 16:53:00 (EST-5)
Location: WEST ORANGE
Magnitude: 0.88 
Reported by: Trained Spotter

Nickel size hail was reported in West Orange.

Hail in ESSEX, NEW JERSEY
From 26-JUL-09 16:55:00 to 26-JUL-09 16:55:00 (EST-5)
Location: MAPLEWOOD
Magnitude: 1.00 
Reported by: Public

Quarter size hail was reported in Maplewood.

Hail in ESSEX, NEW JERSEY
From 26-JUL-09 16:55:00 to 26-JUL-09 16:55:00 (EST-5)
Location: WEST ORANGE
Magnitude: 0.88 
Reported by: Trained Spotter

Nickel size hail was reported.

Hail in ESSEX, NEW JERSEY
From 26-JUL-09 17:00:00 to 26-JUL-09 17:00:00 (EST-5)
Location: WEST ORANGE
Magnitude: 0.75 
Reported by: Public

Penny size hail was reported.

Lightning in HUDSON, NEW JERSEY
From 26-JUL-09 17:13:00 to 26-JUL-09 17:13:00 (EST-5)
Location: EAST NEWARK
Property damage: 7.50K
Crop damage: 0.00K
Reported by: Trained Spotter

A lightning strike caused damage to a chimney at 309 Ann Street.

Lightning in ESSEX, NEW JERSEY
From 26-JUL-09 17:29:00 to 26-JUL-09 17:29:00 (EST-5)
Location: NEWARK HGTS
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Lightning struck 4 persons under a tree outside the Ivy Hill Apartments on Mount Vernon Place, killing one and injuring 3 others.

Thunderstorm Wind in ESSEX, NEW JERSEY
From 26-JUL-09 17:14:00 to 26-JUL-09 17:14:00 (EST-5)
Location: BRILLS JCT
Magnitude: 61.00 EG
Property damage: 7.50K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees and power lines were reported down.

Thunderstorm Wind in ESSEX, NEW JERSEY
From 26-JUL-09 17:04:00 to 26-JUL-09 17:04:00 (EST-5)
Location: NEWARK
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Power lines were reported down.

Hail in UNION, NEW JERSEY
From 26-JUL-09 16:46:00 to 26-JUL-09 16:46:00 (EST-5)
Location: SUMMIT
Magnitude: 0.88 
Reported by: Trained Spotter

Nickel size hail was reported in Summit.