A frontal boundary in the area along with a weak area of low pressure combined to produce areas of showers and thunderstorms on the 12th, mainly in the afternoon and evening hours. The showers and thunderstorms produced heavy rainfall, which resulted in areas of flooding during the afternoon and early evening.

Flash Flood in MERCER, NEW JERSEY
From 12-AUG-09 11:40:00 to 12-AUG-09 14:40:00 (EST-5)
Location: ROBBINSVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A nearly stationary thunderstorm dropped a Doppler Radar estimated 4 to 5 inches over a small section of Robbinsville Township. The ensuing flooding caused the closure of U.S. Route 130 in the township as well as the backing of water against about ten homes along Charlene Court.

Flash Flood in ATLANTIC, NEW JERSEY
From 12-AUG-09 15:50:00 to 12-AUG-09 18:00:00 (EST-5)
Location: CARDIFF
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Thunderstorms with torrential downpours caused multiple roads to flood as well as flooding of smaller streams in and around eastern parts of Egg Harbor Township and Northfield. Doppler Radar storm total estimates reached 3 to 4 inches within Atlantic County centered around Egg Harbor Township. Actual precipitation totals included 2.25 inches in Estell Manor and 1.90 inches in Northfield.

Flash Flood in ATLANTIC, NEW JERSEY
From 12-AUG-09 14:55:00 to 12-AUG-09 17:00:00 (EST-5)
Location: POMONA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: County Official

Thunderstorms with torrential downpours caused considerable poor drainage flooding as well as flooding of some smaller streams in Hamilton and Egg Harbor Townships. Some major roadway flooding was reported on New Jersey State Route 50, U.S. Route 322, Pomona Road and Somers Point-Mays Landing Road. Doppler Radar storm total estimates reached around 4 inches.

Flash Flood in CUMBERLAND, NEW JERSEY
From 12-AUG-09 15:05:00 to 12-AUG-09 18:00:00 (EST-5)
Location: MILLVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorms with torrential rain caused roadway flooding and small stream flooding within Millville. A water rescue was performed at the Mill Village Apartment Complex after flood waters surrounded it. Flooding was also reported along New Jersey State Route 55 and Northway Boulevard. Doppler Radar storm total estimates reached 3 to 4 inches in eastern Cumberland County.

Flash Flood in CUMBERLAND, NEW JERSEY
From 12-AUG-09 15:45:00 to 12-AUG-09 19:45:00 (EST-5)
Location: BRIDGETON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorms with torrential downpours caused poor drainage flooding as well as flooding along immediate sections of the Cohansey River in downtown Bridgeton. Three feet of flood waters inundated the basement of the Cumberland County Courthouse. About 60 percent of the active files in the finance and probation departments were damaged. Five elevators were also damaged. Damage was estimated at $50,000. The courthouse was closed on the 13th, but reopened on the 14th. Doppler Radar storm total estimates reached between 2.5 and 3.0 inches.