A slow moving cold front coupled with a deep southerly flow of very moist air caused slow moving and in some instances back building thunderstorms to occur during the afternoon and evening of the 28th. This caused an all-time record breaking rainfall in nearby Philadelphia as well as flash flooding in southwestern New Jersey and parts of the Passaic and Raritan Basins in northern New Jersey.  The flash flooding in the Philadelphia suburbs (Camden County in particular) led to people being stuck on roadways for hours on the 42 Freeway as well as Interstates 295, 76 and 676. Westbound delays on the Atlantic City Expressway reached two hours.  Doppler Radar storm total estimates and or actual measurements reached around 4 inches in parts of northern New Jersey and 4 to 8 inches in parts of southwest New Jersey with the heaviest rain right along the Delaware River. The daily rainfall measurement of 8.02 inches at the Philadelphia International Airport was not only the all-time calendar day record but was estimated to be a one in thousand year event.

Flood in CUMBERLAND, NEW JERSEY
From 29-JUL-13 06:15:00 to 29-JUL-13 07:00:00 (EST-5)
Location: ORCHARD CENTER
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The runoff from the torrential downpours that fell overnight caused the Cohansey River at Seeley (Hopewell Township) to crest at its 6 foot flood stage from 715 a.m. EDT through 8 a.m. EDT on the 29th. Event precipitation totals included 2.79 inches in Upper Deerfield Township, 2.57 inches in Greenwich Township and 2.07 inches at Seabrook Farms.

Flash Flood in CUMBERLAND, NEW JERSEY
From 28-JUL-13 20:40:00 to 29-JUL-13 00:00:00 (EST-5)
Location: BRIDGETON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms with very heavy downpours caused flash flooding of smaller creeks and roadways in western Cumberland County.  Particularly hard hit by flooding was New Jersey State Route 77 in Upper Deerfield Township and Bridgeton City. Event precipitation totals included 2.79 inches in Upper Deerfield Township, 2.57 inches in Greenwich Township and 2.07 inches at Seabrook Farms.

Flash Flood in SALEM, NEW JERSEY
From 28-JUL-13 20:30:00 to 28-JUL-13 23:00:00 (EST-5)
Location: HANCOCKS BRIDGE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 50.00K
Reported by: Mesonet

A second wave of thunderstorms with torrential downpours caused poor drainage, creek and field flash flooding in eastern Salem County. Event precipitation totals included 3.84 inches in Pittsgrove Township.

Flood in SOMERSET, NEW JERSEY
From 28-JUL-13 19:15:00 to 29-JUL-13 00:01:00 (EST-5)
Location: SOUTH BRANCH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The runoff from the heavy downpours that fell earlier on the 28th caused some minor flooding along rivers and brooks in northwest Somerset County centered around Bedminster and Branchburg Townships. The Lamington River at Burnt Mills (Bedminster Township) was above its 9.5 foot flood stage from 723 p.m. EDT on the 28th through 101 a.m. EDT on the 29th. It crested at 10.51 feet at 11 p.m. EDT on the 28th..The Middle Brook at Burnt Mills (Bedminster Township) was above its 8 foot flood stage from 559 p.m. EDT through 822 p.m. EDT on the 28th. It crested at 9.18 feet at 7 p.m. EDT. The North Branch of the Raritan River at South Branch was above its 7 foot flood stage from 1021 p.m. EDT on the 28th through 1248 a.m. EDT on the 29th. It crested at 7.42 feet at Midnight EDT. Event precipitation totals included 3.15 inches in Pottersville, 3.04 inches in Bedminster Township, 2.99 inches in Basking Ridge, 2.96 inches in Bernards Township, 2.83 inches in Branchburg Township, 2.71 inches in Bridgewater Township, 2.53 inches in Far Hills and 1.84 inches in Hillsborough Township.

Flood in BURLINGTON, NEW JERSEY
From 28-JUL-13 21:30:00 to 29-JUL-13 05:39:00 (EST-5)
Location: MAPLE SHADE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The runoff from the torrential downpours that fell earlier on the day on the 28th caused flooding on area creeks in southwestern Burlington County.  The South Branch of the Pennsauken Creek near Mill Road on New Jersey State Route 38 in Cherry Hill was above its 9 foot flood stage from 1022 p.m. EDT on the 28th through 639 a.m. EDT on the 29th. It crested at 10.03 feet at 3 a.m. EDT on the 29th. Event precipitation totals included 2.91 inches in Mount Laurel, 2.37 inches in Cinnaminson, 2.08 inches in Palmyra and 2.05 inches in Moorestown..

Flash Flood in CAMDEN, NEW JERSEY
From 28-JUL-13 15:50:00 to 28-JUL-13 21:30:00 (EST-5)
Location: GLOUCESTER CITY
Flood cause: Heavy Rain
Property damage: 500.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms with torrential downpours caused flash flooding in western Camden County that damaged vehicles and jammed traffic on major roadways for hours. People were trapped in vehicles for hours. Numerous vehicles were submerged to their tops with multiple rescues on the 42 Freeway, Interstate 76 and in Brooklawn, Camden and Gloucester City. In spite of all of the rescues, no serious injuries were reported. In Gloucester City, U.S. Route 130 was completely submerged. In Collingswood, U.S. Route 30 was closed. On the other side of the Cooper River, waves of water occurred on the Admiral Wilson Boulevard in Pennsauken and Camden. In Barrington, three feet of water accumulated on Clement Bridge Road (New Jersey State Route 41) and raw sewage backed up into apartment buildings. In Camden, the Ferry Avenue PATCO parking lot was flooded. Event precipitation totals included 5.37 inches in Audubon, 5.17 inches in Mount Ephraim, 5.05 inches in Haddonfield, 5.00 inches in Merchantville, 3.63 inches in Collingswood, 3.55 inches in Somerdale, 3.20 inches in Cherry Hill, 2.60 inches in Pennsauken and 2.50 inches in Voorhees Township.

Flash Flood in MORRIS, NEW JERSEY
From 28-JUL-13 17:20:00 to 28-JUL-13 19:30:00 (EST-5)
Location: MIDDLE VLY
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Thunderstorms with torrential downpours caused small stream and poor drainage flash flooding mainly in the southeast part of Morris County. Event precipitation totals included 3.33 inches in Chester, 3.32 inches in Randolph Township, 2.43 inches in Netcong and Parsippany-Troy Hills and 2.25 inches in Long Hill Township.

Flash Flood in GLOUCESTER, NEW JERSEY
From 28-JUL-13 20:45:00 to 29-JUL-13 00:00:00 (EST-5)
Location: AURA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 50.00K
Reported by: Emergency Manager

A second wave of thunderstorms with torrential downpours caused field, small stream and poor drainage flash flooding in southeastern Gloucester County. Event precipitation totals included 3.86 inches in Malaga in Franklin Township.

Flash Flood in SOMERSET, NEW JERSEY
From 28-JUL-13 17:10:00 to 28-JUL-13 19:15:00 (EST-5)
Location: MT BETHEL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Thunderstorms with torrential downpours caused small stream and poor drainage flash flooding mainly in the northwest part of Somerset County. Event precipitation totals included 3.15 inches in Pottersville, 3.04 inches in Bedminster Township, 2.99 inches in Basking Ridge, 2.96 inches in Bernards Township, 2.83 inches in Branchburg Township, 2.71 inches in Bridgewater Township, 2.53 inches in Far Hills and 1.84 inches in Hillsborough Township.

Flash Flood in SALEM, NEW JERSEY
From 28-JUL-13 16:00:00 to 28-JUL-13 21:00:00 (EST-5)
Location: SHARPTOWN
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 100.00K
Reported by: Newspaper

Thunderstorms with torrential downpours caused flash flooding in western Salem County and affected Carneys Point and Pennsville Township the hardest. In Pennsville, two women were rescued from their vehicles on North Broadway. In Carneys Point, Ives Avenue, Hickory Avenue and U.S. Route 130 were all flooded and closed. A Cumberland Farms store within the township suffered flood damage. Field flash flooding damaged tomato crops in the county. Event precipitation totals included 5.93 inches in Pennsville Township.

Flash Flood in BURLINGTON, NEW JERSEY
From 28-JUL-13 17:00:00 to 28-JUL-13 21:30:00 (EST-5)
Location: RIVERTON
Flood cause: Heavy Rain
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorms with torrential downpours caused small stream and poor drainage flash flooding in western Burlington County. The Southwest Branch of the Rancocas Creek flooded sections of the Golden Pheasant Golf Course in Lumberton. In Southampton. several apartment buildings flooded at the Sherwood Village Complex. Event precipitation totals included 2.91 inches in Mount Laurel, 2.76 inches in Mount Holly, 2.37 inches in Cinnaminson, 2.32 inches in Westampton, 2.08 inches in Palmyra and 2.05 inches in Moorestown.

Flash Flood in HUNTERDON, NEW JERSEY
From 28-JUL-13 17:00:00 to 28-JUL-13 19:00:00 (EST-5)
Location: BAPTISTOWN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorms with torrential downpours caused small stream and poor drainage flash flooding mainly in the northeast part of Hunterdon County. Event precipitation totals included 3.18 inches in Readington Township, 2.51 inches in Lebanon, 2.10 inches in Flemington and 2.09 inches in Frenchtown.

Flash Flood in GLOUCESTER, NEW JERSEY
From 28-JUL-13 15:00:00 to 28-JUL-13 21:30:00 (EST-5)
Location: CENTER SQUARE
Flood cause: Heavy Rain
Property damage: 50.00K
Crop damage: 100.00K
Reported by: Emergency Manager

Thunderstorms with torrential downpours caused flash flooding along the western tier of Gloucester County. In Paulsboro, numerous roads were flooded and closed. Some homes were flooded near the Mantua Creek. In Greenwich Township, one motorist had to be rescued from flood waters. A sewer main breakage exacerbated the ongoing flooding. Field flash flooding damaged tomato crops in the county. Event precipitation totals included 4.55 inches in East Greenwich Township, 4.25 inches in Mickleton, 4.15 inches in Westville, 3.78 inches in West Deptford, 3.77 inches in Mullica Hill, 2.75 inches in Woolwich Township, 2.30 inches in Wenonah and 1.91 inches in South Harrison Township.

Flash Flood in CAMDEN, NEW JERSEY
From 28-JUL-13 21:00:00 to 29-JUL-13 00:00:00 (EST-5)
Location: SICKLERVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A second wave of thunderstorms with torrential downpours caused small stream and poor drainage flash flooding in southeastern Camden County. Event precipitation totals included 3.22 inches in Winslow Township.

Flood in CAMDEN, NEW JERSEY
From 28-JUL-13 21:30:00 to 29-JUL-13 05:39:00 (EST-5)
Location: CHERRY HILL
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The runoff from the torrential downpours that fell earlier on the day on the 28th caused minor to moderate flooding on area creeks and rivers in northern Camden County.  The Cooper River at Haddonfield had moderate flooding and was above its 2.8 foot flood stage from 625 p.m. EDT on the 28th through 526 a.m. EDT on the 29th. It crested at 4.13 feet at 1115 p.m. EDT on the 28th.  The South Branch of the Pennsauken Creek at Cherry Hill was above its 9 foot flood stage from 1022 p.m. EDT on the 28th through 639 a.m. EDT on the 29th. It crested at 10.03 feet at 3 a.m. EDT on the 29th. Event precipitation totals included 3.20 inches in Cherry Hill, 2.60 inches in Pennsauken and 2.50 inches in Voorhees Township.