A series of low pressure systems that brought between two and five inches of rain from the evening of the 28th into the early morning of the 31st. Coupled with already wet antecedent conditions, the rain caused renewed flooding in New Jersey, especially in the Raritan and Passaic Basins. While the flooding was not as severe as it was in the middle of the month, it took until early April for all of the rivers to recede back within bankfull. The heaviest rain came in two shots, one that fell from the evening of the 28th into the early morning of the 29th and the second that fell during the daylight hours on the 30th.
The heavy rain was caused by a series of low pressure systems. The first one emerged from the southern Rockies on the morning of the 27th, reached the lower Ohio Valley on the morning of the 28th and started to weaken. Another low pressure system formed on its occluded front farther to the south and by 2 a.m. EDT on the 29th reached the Washington D.C. Metropolitan Area. This low pressure system too weakened as yet another one formed along the Carolina Coast during the morning of the 29th. This low pressure system moved slowly north and at 8 p.m. EDT on the 29th was located off of the North Carolina coast. It continued to intensify and at 8 a.m. EDT on the 30th, it was a 992 millibar low pressure system east of Atlantic City, New Jersey and at 2 p.m. EDT on the 30th, a 988 millibar low pressure system just south of Long Island, New York. From there it was captured by the upper level low and slowly weakened. At 8 p.m. EDT on the 30th, the surface low pressure system was located over central Long Island and then drifted very slowly southeast overnight.
This culminated a much wetter than normal month of March for New Jersey. At the Atlantic City International Airport, the monthly precipitation total of 8.64 inches was the third wettest March on record. In Trenton, the monthly precipitation total of 7.41 inches was the eight wettest March on record.  Because of the even heavier precipitation in the northern half of the state, on a statewide average it was the wettest March on record in New Jersey dating back through 1895. The statewide precipitation average of 9.47 inches was 5.29 inches wetter than normal or 226 percent of normal.

Flood in MONMOUTH, NEW JERSEY
From 30-MAR-10 17:43:00 to 31-MAR-10 10:05:00 (EST-5)
Location: SQUANKUM
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Manasquan River at Squankum was above its 7.5 foot flood stage from 643 p.m. EDT on the 30th through 1105 a.m. EDT on the 31st. It crested at 8.63 feet at 230 a.m. EDT on the 31st. Event precipitation totals included 4.80 inches in Eatontown, 4.36 inches in Belmar and 3.20 inches in Cream Ridge.

Flood in OCEAN, NEW JERSEY
From 29-MAR-10 15:30:00 to 31-MAR-10 23:59:00 (EST-5)
Location: GREENVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The North Branch of the Metedeconk River at Lakewood was above its 7 foot flood stage from 430 p.m. EDT on the 29th through 1015 a.m. EDT on April 1st. It crested at 8.27 feet at 3 a.m. EDT on the 31st. Event precipitation totals included 4.61 inches in Lavallette, 4.60 inches in Oakwood, 4.50 inches in Brick and 3.96 inches in Toms River.

Flood in BURLINGTON, NEW JERSEY
From 29-MAR-10 18:15:00 to 31-MAR-10 23:59:00 (EST-5)
Location: PEMBERTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The North Branch of the Rancocas Creek at Pemberton was above its 2.5 foot flood stage from 715 p.m. EDT on the 29th through 100 p.m. EDT on April 3rd. It crested at 3.51 feet at 1230 p.m. EDT on the 31st. Event precipitation totals included 3.70 inches in Pemberton, 3.30 inches in Mount Holly and 3.21 inches in Mount Laurel.

Flood in SALEM, NEW JERSEY
From 30-MAR-10 08:00:00 to 31-MAR-10 23:59:00 (EST-5)
Location: WILLOW GROVE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Maurice River at Norma was above its 4 foot flood stage from 9 a.m. EDT on the 30th through 10 p.m. EDT on April 2nd. It crested at 4.40 feet at 215 p.m. EDT on the 31st.

Flood in SOMERSET, NEW JERSEY
From 29-MAR-10 05:37:00 to 31-MAR-10 23:59:00 (EST-5)
Location: SOUTH BRANCH
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The North Branch of the Raritan River at the village of South Branch was above its 7 foot flood stage from 637 a.m. EDT through 1241 p.m. EDT on the 29th. It crested at 7.63 feet at 10 a.m. EDT.  The North Branch of the Raritan River at the village of South Branch was again above its 7 foot flood stage from 152 p.m. EDT on the 30th through 507 a.m. EDT on the 31st. It crested at 9.57 feet at 9 p.m. EDT on the 30th.  The main stem of the Raritan River at Manville was above its 14 foot flood stage from 1055 p.m. EDT on the 30th through 633 a.m. EDT on the 31st. It crested at 14.76 feet at 245 a.m. EDT on the 31st. Farther downstream, the main stem of the Raritan River at Bound Brook was above its 28 foot flood stage from 1050 p.m. EDT on the 30th through 1005 a.m. EDT on the 31st. It crested at 29.11 feet at 430 a.m. EDT on the 31st.
The Millstone River at Griggstown was above its 10 foot flood stage from 808 a.m. EDT on the 29th through 1045 p.m. EDT on April 1st. It crested at 15.15 feet at 430 a.m. EDT on the 31st. Farther downstream, the Millstone River at Blackwells Mills was above its 9 foot flood stage from 400 p.m. EDT on the 30th through 755 a.m. EDT on April 1st. It crested at 11.89 feet at 645  a.m. EDT on the 31st.
Event precipitation totals included 3.47 inches in Hillsborough, 2.97 inches in Somerville and 2.92 inches in Bridgewater.

Flood in MORRIS, NEW JERSEY
From 29-MAR-10 17:15:00 to 31-MAR-10 23:59:00 (EST-5)
Location: RIVERDALE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Rockaway River above the Boonton Reservoir was above its 5 foot flood stage from 730  p.m. EDT on the 30th through 6 p.m. EDT on the 31st   It crested at 5.53 feet at 430 a.m. EDT on the 31st.  The Rockaway River below the Boonton Reservoir was above its 5 foot flood stage from 615 p.m. EDT on the 29th  through 616 a.m. EDT on April 2nd. It crested at 6.35 feet at 1015 a.m. EDT on the 31st.
The Pequannock River at Macopin was above its 5.5 foot flood stage from 215 p.m. through 1130 p.m. EDT on the 31st. It crested at 5.59 feet at 4 p.m. EDT,  The Pompton River at Pompton Plains was above its 16 foot flood stage from 652 p.m. EDT on the 30th through 955 p.m. EDT on the 31st. It crested at 16.9 feet at 615 a.m. EDT on the 31st.
The Passaic River at Chatham was above its 6 foot flood stage from 1245 p.m. EDT on the 30th through 6 a.m. EDT on April 2nd. It crested at 6.34 feet at 700 p.m. EDT on the 30th.  Farther downstream, the Passaic River at Pine Brook was above its 19 foot flood stage from 1107 a.m. EDT on the 30th through 615 p.m. EDT on April 4th. It crested at 20.23 feet at 800 a.m. EDT on April 1st.
Event precipitation totals included 3.83 inches in Long Hill, 3.68 inches in Chatham, 3.62 inches in Milltown and 3.61 inches in Parsippany.

Flood in CAMDEN, NEW JERSEY
From 29-MAR-10 05:44:00 to 29-MAR-10 05:46:00 (EST-5)
Location: HADDONFIELD
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Cooper River at Haddonfield briefly touched its 2.8 foot flood stage from 644 a.m. EDT through 646 a.m. EDT on the 29th. Event precipitation totals included 2.53 inches in Winslow and 2.40 inches in Berlin.

Flood in CUMBERLAND, NEW JERSEY
From 30-MAR-10 08:00:00 to 31-MAR-10 23:59:00 (EST-5)
Location: SOUTH VINELAND
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Maurice River at Norma was above its 4 foot flood stage from 9 a.m. EDT on the 30th through 10 p.m. EDT on April 2nd. It crested at 4.40 feet at 215 p.m. EDT on the 31st. Event precipitation totals included 3.18 in Vineland, 2.64 inches in Millville and 2.20 inches in Upper Deerfield.

Flood in MERCER, NEW JERSEY
From 30-MAR-10 14:41:00 to 30-MAR-10 20:53:00 (EST-5)
Location: TRENTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Assunpink Creek at Trenton was above its 8.5 foot flood stage from 341 p.m. EDT through 953 p.m. EDT on the 30th. It crested at 8.99 feet at 645 p.m. EDT. Event precipitation totals included 3.70 inches in Ewing, 3.40 inches in Trenton and 3.14 inches in Lawrence.