New Jersey, 2000

Flash Flood and Heavy Rain in New Jersey, August 12, 2000

August 12, 2000 · NWS PHI · 3 events in 3 counties and zones

Thunderstorms with copious amounts of rain drifted across northwestern Burlington County during the afternoon and early evening of the 12th. The heaviest rain fell in a swath from Willingboro east through Westampton and Southampton Townships.

Where it happened

Every event with a place to put it; 3 filed by county or forecast zone are drawn at its center, in a lighter ring. 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
3

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.

Thunderstorms with copious amounts of rain drifted across northwestern Burlington County during the afternoon and early evening of the 12th. The heaviest rain fell in a swath from Willingboro east through Westampton and Southampton Townships. Residential and poor drainage flooding was reported in Burlington City, Edgewater Park and Willingboro. An off-duty National Weather Service Employee in Willingboro reported that 3 inches of rain fell in 45 minutes. Four major roadways were closed. Farther to the east, two roadways were closed in Westampton Township and U.S. Route 206 was closed in both Eastampton and Southampton Townships. The Rancocas Creek caused some low lying farmland flooding in Eastampton and Southampton Townships. Storm totals included 3.08 inches in Willingboro, 2.31 inches in New Lisbon, 2.14 inches in Lumberton Township and 2.12 inches in Mount Holly. Although no stream flooding was reported, heavy rain in nearby Camden and Mercer Counties produced some poor drainage flooding. In Camden County, U.S. Route 130 from Collingswood to the Airport Circle was flooded. Storm totals included 2.17 inches in Somerdale (Camden County), 1.97 inches in Trenton (Mercer County), 1.65 inches in Pennsauken (Camden County) and 1.43 inches in Hightstown (Mercer County)

The radar

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

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Event by event

2 heavy rain, 1 flash flood. Local standard time, as filed.

Heavy Rain, Mercer

When
August 12, 1:00 PM EST to 3:00 PM EST
Where
Mercer County, Countywide
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
40.283, -74.702 (the zone’s center; the record gives no point)

Flash Flood, Burlington

When
August 12, 1:30 PM EST to 6:30 PM EST
Where
Burlington County, Northwest Portion
Reported by
NWS EMPLOYEE(OFF DUTY)
Coordinates
39.878, -74.668 (the zone’s center; the record gives no point)

Heavy Rain, Camden

When
August 12, 3:00 PM EST to 5:00 PM EST
Where
Camden County, Countywide
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
39.804, -74.960 (the zone’s center; the record gives no point)

What these are

Heavy Rain
Rainfall totals unusual for the place and season that did not produce a flood.
Flash Flood
Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

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

The same day elsewhere

More

Every storm in New Jersey in 2000Every state in 2000This day in weather historyWarnings in New Jersey, August 2000

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 2026-09-24. Each event’s entry at NCEI: 5172742, 5172741, 5172743.