A slow moving cold front with waves of low pressure that developed along it brought a precipitation event that dropped between 1.5 and 4 inches of water equivalent across Northern New Jersey from the early morning of the 6th into the early morning of the 7th. Melting snow contributed to the runoff. The heaviest rain fell during the late afternoon and evening of the 6th. Precipitation ended briefly as snow over the higher terrain of northwest New Jersey during the early morning on the 7th. In Eastern Morris County, sections of the Pompton and Pasaic Rivers were still above flood stage when another heavy rain event occurred from the early morning of the 10th into the morning on the 11th. An additional 2 to 5 inches of rain fell and exacerbated and caused major flooding on both rivers. Governor Christopher Christie declared a state of emergency before the start of the second round of heavy rain on March 9th. Some locations on those rivers did not fall below flood stage until after Eastern Daylight Time began (on March 13th). Throughout the state, 683 dwellings were affected by both flooding events and 207 suffered at least major damage.

Flood in MORRIS, NEW JERSEY
From 07-MAR-11 01:50:00 to 17-MAR-11 23:45:00 (EST-5)
Location: LINCOLN PARK
Flood cause: Heavy Rain / Snow Melt
Property damage: 10.60M
Crop damage: 0.00K
Reported by: River/Stream Gage

Major flooding occurred in eastern Morris County and started on the 7th. Sections of the Pompton and Passaic Rivers never had a chance to recede before the next round of heavy rain arrived on the 10th. The worst flooding and damaged occurred after the second round of heavy rain.  Nevertheless, about twenty homes were evacuated in Lincoln Park when the Pompton River crested the first time. During the second and more serious round of flooding, over 1,000 homes were affected by flood waters in Pequannock and Lincoln Park. The American Red Cross and Salvation Army distributed nearly 4,000 meals and 4,500 snacks. The American Red Cross also distributed nearly 700 clean-up kits and 200 bulk items. Pumps, fans, wet vacs and dehumidifiers were in demand. In Pequannock, 1,300 homes were affected by flood waters and around 100 homes were damaged. About 1,500 people were evacuated and 2,000 residents affected by the flood waters. The hardest hit area was the lower village south of Jackson Avenue, by Madison Avenue and east of the Newark-Pompton Turnpike. New Jersey State Route 23 was closed and was flooded at its intersection with Jackson Avenue.  The National Guard dispatched five high water rescue vehicles. Barricades and bagging helped minimize flood damage to a shopping center off of New Jersey State Route 23. In Lincoln Park, twelve homes were evacuated and 200 homes were affected by flood waters. A shelter was opened in the borough. Riveredge Road was under three feet of water. U.S. Route 202 was closed. Firefighters needed a boat to fight one fire.
The Passaic River at Pine Brook had major flooding with its second crest and was above its 19 foot flood stage from 430 p.m. EST on the 7th through 1245 a.m. EDT on the 18th. The first crest was 20.09 feet at 9 p.m. EST on the 8th. The next crest was 22.04 feet at 1130 p.m.EST on the 12th and that was the sixth highest crest on record. Farther downstream, the Passaic River at Lincoln Park or Circle Burners went above its 6 foot flood stage at 516 p.m. EST on the 7th and had its highest crest of 11.26 feet at 1115 p.m. EDT on the 12th.
The Pompton River along the Morris County border had major flooding also and the lower part of the river did not fall below flood stage before the next heavy rain event arrived on the 10th. The Pompton River at Midwood Road rose above its 7.5 foot flood stage at 150 a.m. EST on the 7th. It had major flooding occur twice. Its first crest was 12.6 feet at 10 p.m. EST on the 7th. The second crest reached 13.3 feet at 250 p.m. EST on the 11th before the gage became submerged. The actual crest in all likelihood was higher. Farther downstream, the Pompton River at the Mountainview Bridge had a major flood crest of 14.1 feet at 5 a.m. EST on the 12th. Its flood stage is 8 feet.
Precipitation amounts during the first event included 2.98 inches in Lincoln Park, 2.82 inches in Parsippany and 2.70 inches in Chatham. Precipitation amounts during the second event included 2.98 inches in Parsippany and 2.84 inches in Chatham.

Flood in WARREN, NEW JERSEY
From 07-MAR-11 15:06:00 to 08-MAR-11 01:20:00 (EST-5)
Location: PHILLIPSBURG
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The Delaware River at Phillipsburg was above its 22 foot flood stage from 306 p.m. EST on the 7th through 120 a.m. EST on the 8th. It crested at 22.88 feet at 815 p.m. EST on the 7th. Farther down river the Delaware River at Riegelsville was above its 22 foot flood stage from 548 p.m. EST on the 7th through 1248 a.m. EST on the 8th. It crested at 22.35 feet at 9 p.m. EST on the 7th. Event precipitation totals included 2.81 inches in Blairstown, 2.66 inches in Mansfield, 2.61 inches in Liberty, 2.57 inches in Hackettstown, 2.53 inches in Pequest, 2.51 inches in Allamuchy, 2.50 inches in Phillipsburg, 2.46 inches in Washington, 2.29 inches in Hackettstown and 2.28 inches in Greenwich and 2.05 inches in Stewartsville.

Flood in SOMERSET, NEW JERSEY
From 06-MAR-11 21:31:00 to 08-MAR-11 20:45:00 (EST-5)
Location: NORTH BRANCH
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The North Branch of the Raritan River at North Branch was above its 12.3 foot flood stage from 130 a.m. EST through 816 a.m. EST on the 7th. It crested at 13.25 feet at 515 a.m. EST. Farther downstream, the North Branch of the Raritan River at Raritan was barely above its 10 foot flood stage from 630 a.m. EST through 730 a.m. EST on the 7th. It crested at 10.01 feet at 7 a.m. EST. The South Branch of the Raritan River at South Branch was above its 7 foot flood stage from 948 p.m. EST on the 6th through 204 p.m. EST on the 7th. It crested at 9.82 feet at 945 a.m. EST on the 7th. Along the main stem of the Raritan River at Manville, the river was above its 14 foot flood stage from 828 a.m. EST through 408 p.m. EST on the 7th. It crested at 14.89 feet at 1230 p.m. EST. Farther downstream, the Raritan River at Bound Brook was above its 28 foot flood stage from 1221 p.m. through 527 p.m. EST on the 7th. It crested at 28.4 feet at 315 p.m. EST.
The Millstone River at Griggstown had moderate flooding and was above its 10 foot flood stage from 1101 p.m. EST on the 6th through 845 p.m. EST on the 8th. It crested at 13.17 feet at Noon EST on the 7th. Farther downstream, the Millstone River at Blackwells Mills was above its 9 foot flood stage from 930 a.m. EST on the 7th through 337 a.m. EST on the 8th. It crested at 9.88 feet at 5 p.m. EST on the 7th. The Pike Run at Belle Mead was above its 7 foot flood stage from 931 p.m. EST through 1151 p.m. EST on the 6th. It crested at 7.20 feet at 1045 p.m. EST.
Event precipitation totals included 2.88 inches in Basking Ridge, 2.53 inches in Bernards, 2.39 inches in Montgomery, 2.38 inches in Bedminister, 2.35 inches in Franklin, 2.29 inches in Hillsborugh, 2.28 inches in Bridgewater, 2.12 inches in Somerville and 2.10 inches in Blackwells Mills.

Flood in MORRIS, NEW JERSEY
From 06-MAR-11 18:53:00 to 10-MAR-11 06:35:00 (EST-5)
Location: GREEN POND JCT
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

The East Ditch at Beaver Brook Road had moderate flooding and was above its 2.5 foot flood stage from 653 p.m. EST on the 6th through 135 a.m. EST on the 8th. It crested at 4.43 feet at 350 a.m. EST on the 7th. The Rockaway River above the Boonton Reservoir had moderate flooding and was above its 5 foot flood stage from 206 a.m. EST on the 7th through 248 p.m. EST on the 8th. It crested at 6.32 feet at 945 a.m. EST on the 7th. The Rockaway River below the Boonton Reservoir was above its 5 foot flood stage from 238 a.m. EST on the 7th through 600 a.m. EST on the 9th. It crested at 6.92 feet at 330 p.m. EST on the 7th. The Pequannock River at the Macopin Dam was above its 5.5 foot flood stage from 130 a.m. EST on the 7th through 237 p.m. EST on the 8th. It crested at 5.93 feet at 230 p.m. EST on the 7th. The Pompton River at Pompton Plains had major flooding and its 9th highest crest on record. It was above its 16 foot flood stage from 130 a.m. EST on the 7th through 316 p.m. EST on the 8th. It crested at 20.32 feet at 400 p.m. EST on the 7th. Farther downstream, the Pompton River at Ryerson Road had major flooding also and was above its 12 foot flood stage from 223 a.m. EST on the 7th through 635 a.m. EST on the 10th. It crested at 16.68 feet at 1030 p.m. EST on the 7th.
Actual precipitation amounts included 3.64 inches in Rockaway, 3.62 inches in Mine Hill, 3.50 inches in Ironia, 3.16 inches in Boonton, 3.04 inches in Jefferson, 2.80 inches in Mount Olive and 2.76 inches in Denville.

Flood in SUSSEX, NEW JERSEY
From 07-MAR-11 03:01:00 to 07-MAR-11 23:00:00 (EST-5)
Location: FLATBROOKVILLE
Flood cause: Heavy Rain / Snow Melt
Property damage: 10.00K
Crop damage: 0.00K
Reported by: River/Stream Gage

A few streams and rivers flooded in Sussex County from the combination of heavy rain and melting snow. In Franklin, Newton Road was flooded by the Wallkill River. In Hampton, Parson Road was flooded by the Paulinskill River. Vernon Crossing was overrun by the Black Creek. In Stillwater, on Swartswood Road some basement homes were flooded by a brook.
The Flat Brook at Flatbrookville was above its 6 foot flood stage from 301 a.m. EST through 11 p.m. EST on the 7th. It crested at the moderate flooding level threshold of 8.00 feet at 1030 a.m. EST. Event precipitation totals are 2.95 inches in Hardyston, 2.57 inches in Sussex, 2.25 inches in Andover, Wantage and Sussex and 2.02 inches in Vernon.