Flooding in New Jersey, October 27, 2007

Name: Flooding in New Jersey, October 27, 2007
Start: 2007-10-27T10:40
End: 2007-10-27T21:45
Location: New Jersey

October 27, 2007 · NWS PHI · 2 events in 2 counties and zones

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

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The toll

Deaths: 0
Injuries: 0
Property damage: None recorded
Crop damage: None recorded
Events: 2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS PHI wrote it up.

A slow moving weather pattern gave New Jersey four days of rainy weather which culminated with periods of heavy rain during the first half of the day on the 27th. Four day storm totals averaged 1 to 5 inches across the state with the highest amounts in Morris, Hunterdon, Somerset and Mercer Counties. This caused poor drainage flooding as well as flooding of some of the branches of the Raritan River in Somerset and Hunterdon Counties. Specific storm totals included 4.86 inches in Flemington (Hunterdon County), 4.72 inches in Pottersville (Somerset County), 4.56 inches in Ironia (Morris County), 3.91 inches in Somerdale (Camden County), 3.20 inches in Willingboro (Burlington County), 3.14 inches in Belvidere (Warren County), 3.13 inches at Cape May Court House (Cape May County), 2.98 inches in Andover (Sussex County), 2.91 inches in Trenton (Mercer County), 2.87 inches in West Deptford (Gloucester County), 2.53 inches in Millville (Cumberland County), 2.45 inches at the Atlantic City International Airport (Atlantic County), 2.26 inches in Deans (Middlesex County), 1.82 inches in Cream Ridge (Monmouth County) and 1.28 inches in Barnegat (Ocean County.

The heavy rain was caused by a long and continuous fetch of tropical moisture between a slow moving upper level low from the south central part of the United States and a blocking ridge over the western Atlantic. The closed system lifted into the Great Lakes on Saturday the 27th and permitted a cold front to move through the region that day and shut off the moisture connection from the tropics.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before the first event at Oct 27, 9:09 AM EST, 1 hour 31 minutes earlier.

Area forecast discussion, Oct 27, 9:09 AM EST, 1 hour 31 minutes before

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Hazardous weather outlook, Oct 27, 8:45 AM EST, 1 hour 55 minutes before

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In the hours before

Special weather statement, Oct 27, 8:13 AM EST, 2 hours 27 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
913 AM EDT SAT OCT 27 2007

DEZ001>004-MDZ008-012-015-019-020-NJZ007>010-012>027-PAZ060>062-
067>071-271600-
NEW CASTLE-KENT DE-INLAND SUSSEX-DELAWARE BEACHES-CECIL-KENT MD-
QUEEN ANNES-TALBOT-CAROLINE-WARREN-MORRIS-HUNTERDON-SOMERSET-
MIDDLESEX-WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-SALEM-
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-OCEAN-CUMBERLAND-
ATLANTIC-CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-
COASTAL OCEAN-SOUTHEASTERN BURLINGTON-BERKS-LEHIGH-NORTHAMPTON-
CHESTER-MONTGOMERY-BUCKS-DELAWARE-PHILADELPHIA-
INCLUDING THE CITIES OF...WILMINGTON...DOVER...GEORGETOWN...
REHOBOTH BEACH...ELKTON...CHESTERTOWN...CENTREVILLE...EASTON...
DENTON...WASHINGTON...MORRISTOWN...FLEMINGTON...SOMERVILLE...
NEW BRUNSWICK...FREEHOLD...SANDY HOOK...TRENTON...PENNSVILLE...
GLASSBORO...CAMDEN...CHERRY HILL...MOORESTOWN...MOUNT HOLLY...
JACKSON...MILLVILLE...HAMMONTON...CAPE MAY COURT HOUSE...
OCEAN CITY...ATLANTIC CITY...LONG BEACH ISLAND...
WHARTON STATE FOREST...READING...ALLENTOWN...BETHLEHEM...
WEST CHESTER...NORRISTOWN...DOYLESTOWN...MEDIA
913 AM EDT SAT OCT 27 2007

...GUSTY WINDS TO 35 MPH ARE POSSIBLE THIS MORNING...

A COLD FRONT WILL BE CROSSING EASTERN PENNSYLVANIA, NEW JERSEY,
DELAWARE AND NORTHEAST MARYLAND THIS MORNING BEFORE MOVING OFF THE
COAST EARLY THIS AFTERNOON. AS THE FRONT MOVES THROUGH, A SHORT
PERIOD OF HEAVY RAIN ALONG WITH GUSTY WINDS TO 35 MPH MAY OCCUR AS
THE WINDS SHIFT FROM SOUTH TO WEST.

THE RAPID SHIFT IN THE WINDS ALONG WITH THE HEAVY RAIN COULD
IMPACT MOTORISTS AND ESPECIALLY HIGH PROFILE VEHICLES.

IF YOU ARE TRAVELING THIS MORNING, BE PREPARED FOR HEAVY RAIN AND
GUSTY WINDS.

RNS

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

2 flood. Local standard time, as filed.

Flood, Hunterdon

When: October 27, 10:40 AM EST to 1:10 PM EST
Where: Hunterdon County, 0.24 mi E of Sunnyside to 0.59 mi E of Sunnyside
Cause: Heavy Rain
Reported by: Mesonet
Coordinates: 40.580, -74.875

The South Branch of the Raritan River at Stanton was above its 8 foot flood stage from 1140 a.m. EDT through 210 p.m. EDT on the 27th. It crested at 8.15 feet at 1245 a.m. EDT. Storm totals within the county since precipitation started falling on Wednesday the 24th included 4.86 inches in Flemington, 4.04 inches in Tewksbury, 4.01 inches in Stockton, 3.94 inches Annandale and 3.85 inches at the Spruce Run Reservoir.

Flood, Somerset

When: October 27, 11:33 AM EST to 9:45 PM EST
Where: Somerset County, 0.71 mi SW of Branchburg Park to 0.68 mi SSW of Branchburg Park
Cause: Heavy Rain
Reported by: Mesonet
Coordinates: 40.562, -74.688

The North Branch of the Raritan River at the borough of South Branch was above its 7 foot flood stage from 1233 p.m. EDT through 1045 p.m. EDT on the 27th. It crested at 8.35 feet at 8 p.m. EDT. Storm totals within the county since precipitation started falling on Wednesday the 24th included 4.72 inches in Pottersville, 3.28 inches in Belle Mead, 3.13 inches in Somerville, 3.12 inches in Far Hills and 3.04 inches in Skillman.

What these are

Flood: Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

Every storm in New Jersey in 2007 Every state in 2007 This day in weather history Warnings in New Jersey, October 2007

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 62882, 62883.