The runoff from the heavy rain caused flash flooding of smaller streams as well as basement and poor drainage flooding across much of central and northwest New Jersey during the afternoon of the 8th. The region was primed for flooding by another heavy rain event that occurred on the 5th. The runoff from the heavy rain caused flooding to continue through the 10th in the Raritan Basin and through the 13th in the Passaic Basin. Rain began falling during the afternoon on the 7th and did not end until the early evening on the 8th. It fell at its heaviest between 10 a.m. EST and 3 p.m. EST on the 8th. Storm totals ranged from one to four inches with the highest amounts in Morris County.
Please note, some of the flooding persisted through the crossover between eastern standard and eastern daylight time on the night of March 8th.
The heavy rain was caused by a low pressure system that developed in the northeastern Gulf of Mexico on the 7th. It deepened to a 997 millibar low by the time it moved slowly northeast into West Virginia at 7 a.m. EST on the 8th. At 1 p.m. EST on the 8th, there were a pair of 992 millibar lows, one near Pittsburgh, Pennsylvania and the other in northern Virginia. At 4 p.m. EST on the 8th, they combined into one over southeast Pennsylvania and deepened to 987 millibars. At 7 p.m. EST the low had deepened to 985 millibars and was near New York City. Its associated cold front had cleared Delaware and New Jersey and ended the rain.

Flash Flood in CAMDEN, NEW JERSEY
From 08-MAR-08 13:00:00 to 08-MAR-08 15:00:00 (EST-5)
Location: CAMDEN
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The runoff from the heavy rain as well as the slowing of the runoff caused by the incoming high tide caused flooding across northwestern Camden County. Roadway flooding included the Admiral Wilson Boulevard and U.S. Route 130. Minor tidal flooding occurred along the Delaware River and tidal sections of its tributaries between 2 p.m. EST and 3 p.m. EST. The high tide in Philadelphia reached 8.44 feet above mean lower low water and minor tidal flooding starts at 8.2 feet above mean lower low water. Storm totals included 1.60 inches in Pennsauken and 1.53 inches in Somerdale.

Flash Flood in SOMERSET, NEW JERSEY
From 08-MAR-08 14:49:00 to 08-MAR-08 17:00:00 (EST-5)
Location: LAMINGTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The heavy rain caused poor drainage flooding as well as flooding along most of the gaged creeks and main stem rivers in Somerset County. The first gaged river to flood was the North Branch of the Raritan River at the village of South Branch. Please refer to the separate flood section on Somerset County for specific details about individual streams and rivers. Event precipitation totals included 2.30 inches in Bound Brook, 2.22 inches in Somerville and 1.94 inches in Hillsborough.

Flash Flood in MORRIS, NEW JERSEY
From 08-MAR-08 14:35:00 to 08-MAR-08 17:00:00 (EST-5)
Location: BUDD LAKE
Flood cause: Heavy Rain
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Newspaper

The heavy rain caused flash flooding of smaller streams as well as poor drainage flooding in Morris County. The runoff also caused flooding along some of the larger rivers in the county including the Rockaway and Passaic which lasted for days. In Jefferson Township, flooding was reported along New Jersey State Route 15. An overflowing retention basin flooded a house in the township. In Mount Olive Township, three roads were closed including River Road. In Chester, Tanner Brook Road was closed. Four roads were closed in Lincoln Park and two roads were closed in Mendham Township. Basements were flooded in Morristown. Please refer to the separate storm data entry as flooding for specifics about flooded streams and rivers within the county. Event precipitation totals included 3.91 inches in Morris Township, 3.19 inches in Ironia, 2.64 inches in West Wharton and 2.30 inches in Boonton.

Flash Flood in WARREN, NEW JERSEY
From 08-MAR-08 13:00:00 to 08-MAR-08 16:00:00 (EST-5)
Location: ALPHA
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Runoff from the heavy rain caused flooding of streams and roadways in southern Warren County. A road was closed in Pohatcong Township because of the flooding. Event precipitation totals included 2.29 inches in Greenwich Township and 1.85 inches at the Belvidere Bridge.

Flash Flood in MERCER, NEW JERSEY
From 08-MAR-08 13:00:00 to 08-MAR-08 17:00:00 (EST-5)
Location: PRINCETON JCT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

The heavy rain caused basement, roadway and stream flooding across the northern part of Mercer County. In Princeton both River Road and Quakerbridge Road were closed. Two roadways were closed in Hopewell Township including New Jersey State Route 29. Nearly half of the flooded basements in Mercer County occurred in Hopewell Township. Event precipitation totals included 2.32 inches in Washington Crossing, 2.30 inches in Trenton and 2.14 inches in Pennington.

Flood in SOMERSET, NEW JERSEY
From 08-MAR-08 17:00:00 to 10-MAR-08 05:45:00 (EST-5)
Location: LAMINGTON
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Runoff from the heavy rain led to flooding along many gaged streams and rivers in Somerset County including the Raritan and Millstone Rivers.
The North Branch of the Raritan River at North Branch was above its 12.3 foot flood stage from 506 p.m. EST on the 8th through 152 a.m. EST on the 9th. It crested at 14.66 feet at 930 p.m. EST on the 8th. Farther downstream at Raritan, the North Branch of the Raritan River was above its 10 foot flood stage from 807 p.m. EST on the 8th through 339 a.m. EDT on the 9th. It crested at 11.4 feet at 11 p.m. EST on the 8th. Farther downstream at the village of South Branch, the North Branch of the Raritan River was above its 7 foot flood stage from 249 p.m. EST on the 8th through 121 p.m. EDT on the 9th. It crested at 12.93 feet at 1045 p.m. EST. The main stem of the Raritan River at Manville was above its 14 foot flood stage from 1127 p.m. EST on the 8th through 218 p.m. EDT on the 9th. It crested at 16.8 feet at 530 a.m. EDT on the 9th. Farther downstream, the main stem of the Raritan River at Bound Brook was above its 28 foot flood stage from 115 a.m. EST through 309 p.m. EDT on the 9th. It crested at 30.06 feet at 815 a.m. EDT.
The Millstone River at Griggstown was above its 10 foot flood stage from 410 p.m. EST on the 8th through 645 a.m. EDT on the 10th. It crested at 13.10 feet at 815 a.m. EDT on the 9th. Farther downstream, the Millstone River at Blackwells Mills was above its 9 foot flood stage from 453 a.m. EDT through 838 p.m. EDT on the 9th. It crested at 10.08 feet at 1145 a.m. EDT. Farther downstream, the Millstone River at Weston was above its 12.4 foot flood stage from 437 a.m. EDT through 1011 a.m. EDT on the 9th. It crested at 12.78 feet at 715 a.m. EDT. The Lamington River at Burnt Mills was above its 9.5 foot flood stage from 5 p.m. EST on the 8th through 1 a.m. EDT on the 10th. It crested at 10.6 feet at 9 p.m. EDT on the 8th. Pike Run at Belle Mead was above its 7 foot flood stage from 344 p.m. EST through 719 p.m. EST on the 8th. It crested at 7.86 feet at 515 p.m. EST.
Event precipitation totals included 2.30 inches in Bound Brook, 2.22 inches in Somerville and 1.94 inches in Hillsborough.

Flood in MORRIS, NEW JERSEY
From 08-MAR-08 17:00:00 to 13-MAR-08 11:30:00 (EST-5)
Location: PEQUANNOCK
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Runoff from the heavy rain caused river flooding and it lasted into the 13th along the Passaic River. The Passaic River at Pine Brook was above its 19 foot flood stage from 315 a.m. EDT on the 9th through Midnight EDT on the 13th. It crested at 19.6 feet at 115 p.m. EDT on the 10th. Farther downstream, the Passaic River at Two Bridges was above its 9 foot flood stage from 1052 p.m. EST on the 8th through 1230 p.m. EDT on the 13th. It crested at 10.47 feet at 515 p.m. EDT on the 10th. The Rockaway River above the Boonton Reservoir was above its 5 foot flood stage from 1003 p.m. EST on the 9th through 415 p.m. EDT on the 9th. It crested at 5.41 feet at 6 a.m. EDT. The Rockaway River below the Boonton Reservoir was above its 5 foot flood stage from 237 p.m. EST on the 9th through 323 a.m. EDT on the 11th. It crested at 6.33 feet at 1145 a.m. EDT on the 10th. The East Ditch at Beaver Brook Road was above its 3.9 foot flood stage from 630 p.m. EST on the 8th through 1259 a.m. EST on the 9th. It crested at 4.1 feet at 9 p.m. EST on the 8th. Event precipitation totals included 3.91 inches in Morris Township, 3.19 inches in Ironia, 2.64 inches in West Wharton and 2.30 inches in Boonton.

Flood in HUNTERDON, NEW JERSEY
From 08-MAR-08 17:08:00 to 09-MAR-08 07:25:00 (EST-5)
Location: HIGH BRIDGE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Runoff from the heavy rain earlier in the day led to flooding along the South Branch of the Raritan River. The South Branch of the Raritan River at High Bridge was above its 10 foot flood stage from 1215 a.m. EST through 3 a.m. EDT on the 9th. It crested at 10.04 feet at 115 a.m. EST. Farther downstream, the South Branch of the Raritan River at Stanton was above its 8 foot flood stage from 508 p.m. EST on the 8th through 825 a.m. EDT on the 9th. It crested at 8.69 feet at 745 p.m. EST on the 8th. Event precipitation totals included 2.91 inches in Flemington, 2.38 inches in Stockton and 2.36 inches in Califon.

Flash Flood in HUNTERDON, NEW JERSEY
From 08-MAR-08 12:40:00 to 08-MAR-08 17:08:00 (EST-5)
Location: LAMBERTVILLE
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

The heavy rain caused flash flooding of roadways and smaller streams mainly in the southern part of Hunterdon County. The heavy rain led to flooding along the South Branch of the Raritan River later that day. Flooding was reported on County Routes 519 and 602 as well as within Lambertville, Raritan Township and East Amwell Township. New Jersey State Route 29 was closed in Delaware Township. Flooding was reported on Holcombe Island. Flooding was also reported around the small bridges in and around Califon. Event precipitation totals included 2.91 inches in Flemington, 2.38 inches in Stockton and 2.36 inches in Califon.