A series of low pressure systems that moved north along a slowly moving cold front brought heavy rain into the western half of New Jersey on September 30th and October 1st. Event precipitation totals average 3 to 7 inches. Totals were lighter along the immediate coastal counties. Several streams and rivers flooded across the area and there was also poor drainage flooding. The first round of heavy rain occurred mainly west of New Jersey during the early morning of September 30th. The second and heavier round of precipitation moved in during the evening of September 30th and continued into the morning of October 1st. The rain ended by the early afternoon of October 1st.
A low pressure system formed along a stationary front off the Carolina Coast during the night of September 29th. At 8 a.m. EDT on September 30th, it moved into central North Carolina and continued to move north.  The low slowly weakened as it moved north and reached Pennsylvania on the evening of September 30th. Another low pressure system formed off the Carolina coast during the late morning of September 30th. This low was able to ingest tropical moisture associated with dissipating Tropical Storm Nicole. At 8 p.m. EDT on the 30th, the low pressure system moved north into eastern North Carolina and at 2 a.m. EDT on October 1st, it moved into the Delmarva Peninsula. At 8 a.m. EDT on October 1st, the low pressure system was just east of Atlantic City on its way to passing through eastern Long Island during the afternoon of October 1st.

Flood in MORRIS, NEW JERSEY
From 01-OCT-10 03:42:00 to 01-OCT-10 23:41:00 (EST-5)
Location: POWERVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The East Ditch at Beaver Brook Road was above its 2.5 foot flood stage from 442 a.m. EDT on the 1st through 1232 a.m. EDT on the 2nd. It crested at 3.79 feet at 1130 a.m. EDT on the 1st. The Rockaway River above the Boonton Reservoir was above its 5 foot flood stage from 203 p.m. EDT on the 1st through 1241 a.m. EDT on the 2nd. It crested at 5.33 feet at 515 p.m EDT on the 1st.
Event precipitation totals included 5.55 inches in Rockaway, 5.50 inches in Butler, 5.08 inches in Denville, 4.82 inches in Chatham and 4.25 inches in Parsippany.

Flood in CAMDEN, NEW JERSEY
From 01-OCT-10 02:42:00 to 01-OCT-10 10:08:00 (EST-5)
Location: HADDONFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

Poor drainage flooding caused the closure of the Interstate 295 ramps in Haddon Heights and Mount Ephraim. The Cooper River at Haddonfield was above its 2.8 foot flood stage from 342 a.m. EDT through 408 p.m. EDT on the 1st. It crested at 3.72 feet at 930 a.m. EDT. Event precipitation totals included 4.73 inches in Somerdale and 4.40 inches in Pennsauken.

Flood in HUNTERDON, NEW JERSEY
From 01-OCT-10 05:47:00 to 01-OCT-10 10:00:00 (EST-5)
Location: STANTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

While the Delaware River did not flood, a significant rise in stage occurred on the river. A breakaway barge had to be guided under the New Hope-Lambertville Bridge which was closed until that occurred. The South Branch of the Raritan River at Stanton was above its 8 foot flood stage from 647 a.m. EDT through 1100 a.m. EDT on the 1st. It crested at 8.79 feet at 900 a.m. EDT. Event precipitation totals included 6.72 inches in Holland, 6.62 inches in Bethlehem, 6.33 inches in Stockton and 5.14 inches in Flemington.

Flood in SOMERSET, NEW JERSEY
From 01-OCT-10 06:11:00 to 01-OCT-10 17:48:00 (EST-5)
Location: SOUTH BRANCH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The South Branch of the Raritan River at the village of South Branch was above its 7 foot flood stage from 711 a.m. EDT through 648 p.m. EDT on the 1st. It crested at 9.0 feet at 3 p.m. EDT. Event precipitation totals included 4.48 inches in Martinsville , 4.26 inches in Basking Ridge and 3.76 inches in Hillsborough.

Flood in GLOUCESTER, NEW JERSEY
From 01-OCT-10 06:16:00 to 01-OCT-10 17:22:00 (EST-5)
Location: SWEDESBORO
Flood cause: Heavy Rain
Property damage: 25.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A couple of roads were washed out in the county in Pitman, Woolwich and Logan Townships.  The Raccoon Creek at Swedesboro was above its 13 foot flood stage from 716 a.m. EDT through 706 p.m. EDT on the 1st. It crested at 14.29 feet at 915 a.m. EDT. Event precipitation totals included 7.17 inches in Greenwich Township, 5.62 inches in Glassboro and 5.41 inches in West Deptford.

Flood in SUSSEX, NEW JERSEY
From 01-OCT-10 14:05:00 to 01-OCT-10 19:48:00 (EST-5)
Location: FLATBROOKVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Flat Brook at Flatbrookville was above its 6 foot flood stage from 305 p.m. EDT through 848 p.m. EDT on the 1st. It crested at 6.27 feet at 530 p.m. EDT. Event precipitation totals included 5.50 inches in Andover and Hardyston, 5.20 inches in Sparta and 5.01 inches in Stockholm.