The combination of a slowly moving cold front with a wave of low pressure along it and wet antecedent conditions helped develop a large area of light to moderate rain with embedded thunderstorms accompanied by heavy rain in New Jersey primarily during the afternoon of the 18th. This led to urban and poor drainage flooding and also flash flooding near and along some of the smaller creeks and rivers in the state. Event precipitation totals averaged 1 to 3 inches in the southern half of the state and in sections of Morris County in the northern part of the state.

Flash Flood in MORRIS, NEW JERSEY
From 18-JUN-13 16:53:00 to 18-JUN-13 19:00:00 (EST-5)
Location: PINE BROOK
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Newspaper

Thunderstorms with heavy rain caused flash flooding in Parsippany-Troy Hills Township. U.S. Route 46 was closed in both directions between Baldwin and South Beverwyck Roads. Homes and businesses in the area suffered damage to their plumbing systems caused by the flooding rains. Event precipitation totals included 1.87 inches within the township.

Flash Flood in CAMDEN, NEW JERSEY
From 18-JUN-13 13:45:00 to 18-JUN-13 15:45:00 (EST-5)
Location: BELLMAWR
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Thunderstorms with heavy rain caused flash flooding in the Little Timber Creek drainage basin in and around Bellmawr. The flooding also affected Interstate 295 at exit 26. Doppler Radar storm total estimates were around 2.5 inches in the area.

Flash Flood in GLOUCESTER, NEW JERSEY
From 18-JUN-13 13:00:00 to 18-JUN-13 15:00:00 (EST-5)
Location: AURA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: CoCoRaHS

Thunderstorms with heavy rain caused poor drainage and small stream flash flooding in central Gloucester County.  Event precipitation totals included 2.78 inches in Elk Township, 2.76 inches in Clayton, 2.61 inches in Pitman, 2.54 inches in Glassboro and 2.14 inches in Monroe Township.

Flash Flood in ATLANTIC, NEW JERSEY
From 18-JUN-13 15:39:00 to 18-JUN-13 18:00:00 (EST-5)
Location: ATLANTIC CITY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Thunderstorms with heavy rain caused poor drainage flash flooding in Atlantic City. Several roadways were flooded. Event precipitation totals included 2.16 inches within the city.

Flash Flood in CAMDEN, NEW JERSEY
From 18-JUN-13 13:30:00 to 18-JUN-13 15:30:00 (EST-5)
Location: WINSLOW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Thunderstorms with heavy rain caused flash flooding in Winslow Township. The flooding also affected the White Horse Pike (U.S. Route 30). Event precipitation totals included 2.21 inches within the township.

Flash Flood in OCEAN, NEW JERSEY
From 18-JUN-13 14:00:00 to 18-JUN-13 16:00:00 (EST-5)
Location: TOMS RIVER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Thunderstorms with heavy rain caused flash flooding in Toms River Township.  The flooding also affected the eastbound lanes of New Jersey State Route 37. Event precipitation totals included 3.48 inches in Berkeley Township and 2.57 inches in Toms River Township.

Flash Flood in BURLINGTON, NEW JERSEY
From 18-JUN-13 13:50:00 to 18-JUN-13 16:00:00 (EST-5)
Location: PRESIDENTIAL LAKES
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Other Federal Agency

Thunderstorms with heavy rain caused flash flooding along the Southampton and Pemberton Township borders. The flooding also affected New Jersey State Routes 70 and 72.  Event precipitation totals included 3.07 inches in Tabernacle Township, 2.15 inches in Pemberton Township and 1.98 inches in Oswego Lake.

Flash Flood in OCEAN, NEW JERSEY
From 18-JUN-13 15:00:00 to 18-JUN-13 17:00:00 (EST-5)
Location: SURF CITY
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Newspaper

Thunderstorms with heavy rain caused flash flooding in Surf City on Long Beach Island. Vehicles were disabled by the flood waters on Central and Barnegat Avenues and Long Beach Boulevard. Nearby event precipitation totals included 1.90 inches in Harvey Cedars and 1.88 inches in Seaside Heights.

Flood in CAMDEN, NEW JERSEY
From 18-JUN-13 17:08:00 to 18-JUN-13 21:30:00 (EST-5)
Location: HADDONFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The runoff from the heavier rain earlier in the day caused minor flooding along the Cooper River.  The Cooper River at Haddonfield was above its 2.8 foot flood stage from 608 p.m. EDT through 1030 p.m. EDT on the 18th. It crested at 3.01 feet at 830 p.m. EDT.