A protracted precipitation event that started as a wintry mix and then changed to rain caused flooding across the Passaic and Raritan Basins in northern New Jersey. Precipitation changed to plain rain before sunrise on the 13th and fell continuously through the early evening on the 13th. The heaviest rain fell during the first half of the day and into the early afternoon on the 13th. The combination of the heavy rain and snow and ice melt caused flooding of many creeks and rivers as well as poor drainage flooding in urban areas. Clogged catch basins exacerbated the problems. Storm totals averaged between two and three and a half inches.
The prolonged precipitation event was caused by the slow moving frontal system that went from Ohio on the early evening of the 12th and took until the afternoon of the 13th to move off of the New Jersey and Delaware coasts. A series of low pressure systems moved north along the frontal boundary and brought steady and in some cases heavy rain into the region.

Flood in HUNTERDON, NEW JERSEY
From 13-FEB-08 09:45:00 to 13-FEB-08 15:00:00 (EST-5)
Location: HUGHESVILLE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Runoff from the ice melt and the heavy rain caused stream, roadway and some basement flooding across Hunterdon County. Many roads were flooded in the usual spots, including on Hampton Corner and Kuhl Roads in Raritan Township, The Rockaway Creek in the area of U.S. Route 22 in Lebanon Borough and Readington Township flooded. Floodwaters subsided by late that day. In Clinton Township, a ceiling partially collapsed from rain leaking into the roof of the North Hunterdon Municipal Court, however no injuries were reported. Most schools decided early to have delayed openings on February 13th, but as conditions deteriorated some decided to close for the day, including North Hunterdon and Voorhees High Schools as well as Bloomsbury, Califon, Hampton, High Bridge, Holland, Bethlehem, Lebanon, Tewksbury and Union Townships. Several minor flooding related accidents were reported. Event precipitation totals included 2.96 inches in Stockton and 2.91 inches in Flemington.

Flood in SUSSEX, NEW JERSEY
From 13-FEB-08 07:45:00 to 13-FEB-08 15:00:00 (EST-5)
Location: MONTAGUE
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

Runoff from the heavy rain and ice melt caused flooding across Sussex County. Twenty-one county roads were blocked either by downed trees and wires or flooding. Much of the flooding resulted from blocked storm drains. U.S. Route 206 was flooded in several portions, and New Jersey State Route 15 was shut down in Lafayette due to an overflowing river. Precipitation totals included 2.91 inches in Andover, 2.41 inches in Flatbrookville and 2.06 inches in Hopatcong.

Flood in MORRIS, NEW JERSEY
From 13-FEB-08 07:45:00 to 17-FEB-08 13:15:00 (EST-5)
Location: GREEN POND JCT
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

The heavy rain and flooding as well as leftover icy conditions caused many school districts to either close or have delayed openings. In Boonton, Boonton Township and Montville, Boonton Avenue was closed for approximately an hour and a half.
The East Ditch at Beaver Brook Road was above its 3.9 foot flood stage from 300 p.m. EST through 10 p.m. EST on the 13th. It crested at 4.10 feet at 6 p.m. EST. The Rockaway River above the Boonton Reservoir was above its 5 foot flood stage from 607 p.m. EST on the 13th through Noon EST on the 14th. It crested at 5.46 feet at 4 a.m. EST on the 14th. The Rockaway River below the Boonton Reservoir was above its 5 foot flood stage from 809 p.m. EST on the 13th through 131 p.m. EST on the 15th. It crested at 6.31 feet at 730 a.m. EST on the 14th. The Pequannock River at the Macopin Dam was above its 5.5 foot flood stage from 3 a.m. EST through 1130 a.m. EST on the 14th. It crested at 5.54 feet at 545 a.m. EST. The Passaic River at Pine Brook was above its 19 foot flood stage from 515 p.m. EST on the 14th through 115 p.m. EST on the 17th. It crested at 19.48 feet at 1230 p.m. EST on the 15th. Farther downstream, the Passaic River at Two Bridges was above its 9 foot flood stage from 615 a.m. EST on the 15th through 1215 p.m. EST on the 16th. It crested at 9.19 feet at 10 p.m. EST on the 14th.
Event precipitation totals included 3.50 inches in Boonton, 3.44 inches in Ironia, 2.88 inches in Morristown and 2.36 inches in Pequannock.

Flood in WARREN, NEW JERSEY
From 13-FEB-08 07:45:00 to 13-FEB-08 15:00:00 (EST-5)
Location: MILLBROOK
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Runoff from the heavy rain and ice melt caused small stream and roadway flooding across Warren County.  Event precipitation totals included 3.60 inches in Columbia, 3.28 inches in Riegelsville and 2.21 inches in Belvidere.

Flood in SOMERSET, NEW JERSEY
From 13-FEB-08 09:45:00 to 15-FEB-08 12:30:00 (EST-5)
Location: GRIGGSTOWN
Flood cause: Heavy Rain / Snow Melt
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Newspaper

The heavy rain and ice and snow melt caused flooding along the low-lying areas of the North and South Branches of the Raritan River in Branchburg and Hillsborough and the Millstone River in Montgomery and Hillsborough. New Jersey State Route 28 was closed in the North Branch section of Branchburg. Old York Road between Branchburg and Bridgewater was also closed due to flooding, as the water completely covered a portion of the road. Some flooding was also reported on Dukes Parkway West in Hillsborough.
The Millstone River at Griggstown was above its 10 foot flood stage from 208 p.m. EST on the 13th through 1230 p.m. EST on the 15th. It crested at 13.64 feet at 515 a.m. EST on the 14th. Farther downstream at Blackwells Mills, the Millstone River was above its 9 foot flood stage from 142 a.m. EST through 945 p.m. EST on the 14th. It crested at 10.26 feet at 1230 p.m. EST. Farther downstream at Weston, the Millstone River was above its 12.4 foot flood stage from 414 a.m. EST through 545 a.m. EST on the 14th. It crested at 12.43 feet at 5 a.m. EST. The North Branch of the Raritan River at North Branch was above its 12.3 foot flood stage from 151 p.m. EST through 1113 p.m. EST on the 13th. It crested at 13.5 feet at 630 p.m. EST. Farther downstream at Raritan, the North Branch of the Raritan River was above its 10 foot flood stage from 443 p.m. EST through 1145 p.m. EST on the 13th. It crested at 10.61 feet at 745 p.m. EST. Farther downstream at the village of South Branch, the North Branch of the Raritan River was above its 7 foot flood stage from 945 a.m. EST on the 13th through 748 a.m. EST on the 14th. It crested at 11.77 feet at 915 p.m. EST on the 13th. Along the main stem of the Raritan River at Manville, the Raritan River was above its 14 foot flood stage from 1006 p.m. EST on the 13th through 816 a.m. EST on the 14th. It crested at 15.1 feet at 245 a.m. EST on the 14th. Farther downstream at Bound Brook, the Raritan River was above its 28 foot flood stage from 1025 p.m. EST on the 13th through 1152 a.m. EST on the 14th. It crested at 29.69 feet at 5 a.m. EST on the 14th.
Event precipitation totals included 3.60 inches in Pottersville, 3.20 inches in Neshanic, 2.96 inches in Martinsville and Somerville, 2.70 inches in Bound Brook, 2.68 inches in Belle Mead, 2.64 inches in Skillman and 2.23 inches in Blackwells Mills.