New Jersey, 2000

Flash Flooding in New Jersey, June 11, 2000

June 11, 2000 · NWS PHI · 3 events in 3 counties and zones

Several thunderstorms with heavy rain moved through the same areas in northwest New Jersey and produced flash flooding along some of the smaller streams in southern Sussex County, southwestern Morris County and eastern Warren County. 4 inches of rain fell within one hour.

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.

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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.

Several thunderstorms with heavy rain moved through the same areas in northwest New Jersey and produced flash flooding along some of the smaller streams in southern Sussex County, southwestern Morris County and eastern Warren County. In Washington Township (Warren County) 2.4 inches of rain fell within one hour. At least one vehicle was trapped in the rising flood waters and the driver was rescued. Flash flooding in Warren County was also reported in Belvidere, Blairstown, Hackettstown and Oxford Townships. Doppler Radar storm total estimates reached as high as around 3.5 inches in northern sections of Warren County and around 3.0 inches in southern parts of Sussex County and Morris County. Storm totals included 2.01 inches in Wantage (Sussex County), 1.80 inches in Phillipsburg (Warren County), 1.65 inches in Long Valley (Morris County) and 1.60 inches in Belvidere (Warren County). Most of these locations were not within the heaviest rain strip. No serious injuries were reported.

The radar

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

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Event by event

3 flash flood. Local standard time, as filed.

Flash Flood, Warren

When
June 11, 8:30 PM EST to 10:30 PM EST
Where
Warren County, Countywide
Reported by
TRAINED SPOTTER
Coordinates
40.857, -74.997 (the zone’s center; the record gives no point)

Flash Flood, Sussex

When
June 11, 8:30 PM EST to 10:30 PM EST
Where
Sussex County, South Portion
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
41.140, -74.690 (the zone’s center; the record gives no point)

Flash Flood, Morris

When
June 11, 9:00 PM EST to 11:00 PM EST
Where
Morris County, Southwest Portion
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
40.862, -74.544 (the zone’s center; the record gives no point)

What these are

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, June 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: 5153771, 5153772, 5153773.