Showers and thunderstorms developed in the vicinity of a stalled frontal boundary. With weak steering flow and precipitable water values approaching 2 inches on the 12Z Upton sounding, this resulted in widespread flash flooding across portions of urban northeast New Jersey during the mid to late afternoon hours. Rainfall totals include 2.28 inches recorded by the Newark Airport ASOS and 2.17 inches reported by a COOP observer in Harrison. This rain fell across an area with wet antecedent conditions as a result of several rounds of heavy rainfall during the previous week to week and a half.

Flash Flood in ESSEX, NEW JERSEY
From 17-JUL-21 15:02:00 to 17-JUL-21 16:04:00 (EST-5)
Location: NEWARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

All lanes on NJ 21 were closed due to flooding at Emmet Street in Newark.

Flash Flood in ESSEX, NEW JERSEY
From 17-JUL-21 15:30:00 to 17-JUL-21 16:04:00 (EST-5)
Location: NEWARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: State Official

Multiple motorists were stranded in significant flash flooding in the Ironbound section and South and East Wards of Newark. Public safety was responding to multiple calls to assist people trapped inside their vehicles.

Flash Flood in HUDSON, NEW JERSEY
From 17-JUL-21 14:05:00 to 17-JUL-21 16:04:00 (EST-5)
Location: EAST NEWARK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Frank E. Rogers Boulevard was flooded near Pete Higgins Boulevard in Harrison.

Flash Flood in ESSEX, NEW JERSEY
From 17-JUL-21 14:10:00 to 17-JUL-21 16:04:00 (EST-5)
Location: (EWR)NEWARK INTL ARP
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The entrance ramp to the southbound New Jersey Turnpike from the Hudson County Extension (I-78) in Newark was closed due to flooding.

Flash Flood in UNION, NEW JERSEY
From 17-JUL-21 14:47:00 to 17-JUL-21 16:04:00 (EST-5)
Location: VAUXHALL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

US 22 was closed due to flooding eastbound at the Garden State Parkway in Union.

Flash Flood in ESSEX, NEW JERSEY
From 17-JUL-21 14:41:00 to 17-JUL-21 16:04:00 (EST-5)
Location: BRILLS JCT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

All lanes were closed due to flooding on the US Route 1&9 truck route northbound at the New Jersey Turnpike in Newark.

Flash Flood in ESSEX, NEW JERSEY
From 17-JUL-21 14:50:00 to 17-JUL-21 16:04:00 (EST-5)
Location: (EWR)NEWARK INTL ARP
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A van was stuck in flood waters under the Amtrak bridge on McClellan Street in Elizabeth between Newark Avenue and Runiak Avenue. The water was just below the roof of the van.

Flash Flood in ESSEX, NEW JERSEY
From 17-JUL-21 14:50:00 to 17-JUL-21 16:04:00 (EST-5)
Location: IRVINGTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A NJ Transit bus was stuck in flood waters under the overpass on Meeker Avenue between Elizabeth Avenue and Frelinghuysen Avenue in Newark. The 22 people on board the bus were rescued by firefighters on a boat after climbing through the hatch on the roof of the bus.

Flash Flood in UNION, NEW JERSEY
From 17-JUL-21 14:59:00 to 17-JUL-21 16:04:00 (EST-5)
Location: TOWNLEY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

US 22 was closed in both directions due to flooding in the vicinity of Liberty Avenue in Hillside.

Flash Flood in ESSEX, NEW JERSEY
From 17-JUL-21 15:38:00 to 17-JUL-21 16:04:00 (EST-5)
Location: BRILLS JCT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Significant flooding was reported in the Ironbound section of Newark, with water above car tires and waist deep in many spots near the intersection of Ferry Street and Wilson Avenue.

Flash Flood in ESSEX, NEW JERSEY
From 17-JUL-21 15:38:00 to 17-JUL-21 16:04:00 (EST-5)
Location: (EWR)NEWARK INTL ARP
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Port Authority officers rescued multiple people trapped in vehicles due to flash flooding in Port Newark and near the Newark International Airport.

Flash Flood in UNION, NEW JERSEY
From 17-JUL-21 16:16:00 to 17-JUL-21 16:46:00 (EST-5)
Location: ELIZABETH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Flooding was reported on the grounds of Newark Liberty International Airport on Earhart Drive between Metroplex Road and Basilone Road. All lanes were closed.

Flash Flood in ESSEX, NEW JERSEY
From 17-JUL-21 15:38:00 to 17-JUL-21 16:04:00 (EST-5)
Location: (EWR)NEWARK INTL ARP
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

Flooding was reported in Port Newark with all lanes closed on Corbin Street northbound at Tyler Street.