New Jersey, 1999

Flash Flooding in New Jersey, May 24, 1999

May 24, 1999 · NWS PHI · 3 events in 3 counties and zones

A pair of thunderstorms brought excessive rain that caused urban and stream flooding in western and northwestern Camden, Gloucester and Salem Counties. During the second thunderstorm around noon EDT widespread flooding occurred.

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.

A pair of thunderstorms brought excessive rain that caused urban and stream flooding in western and northwestern Camden, Gloucester and Salem Counties. During the second thunderstorm around noon EDT widespread flooding occurred. Storm totals for the day exceeded three inches in many locations, most of which fell within three hours. In Salem County, small stream flooding caused road closures, especially in Pennsville Township. In Gloucester County, in addition to the stream flooding, basements were flooded in Gibbstown, West Deptford and Woodbury. The Gloucester County Courthouse's basement filled with water. In Camden County, flooding forced the closure of New Jersey State Route 42. Flooding also forced the closure of a one mile stretch of United States Route 130 between the Collingswood Circle and Collins Avenue and also around the intersection with Admiral Wilson Boulevard. Storm totals included 4.22 inches in Mount Ephraim (Camden County), 3.82 inches in Verga (Gloucester County), 3.45 inches in West Deptford (Gloucester County), 3.25 inches in Gibbstown (Gloucester County), 2.92 inches in Cherry Hill (Camden County) and 2.90 inches in Pennsauken (Camden County).

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, Camden

When
May 24, 10:00 AM EST to 12:00 PM EST
Where
Camden County, Northwest Portion
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
39.804, -74.960 (the zone’s center; the record gives no point)

Flash Flood, Gloucester

When
May 24, 10:00 AM EST to 12:00 PM EST
Where
Gloucester County, Northwest Portion
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
39.717, -75.142 (the zone’s center; the record gives no point)

Flash Flood, Salem

When
May 24, 10:00 AM EST to 12:00 PM EST
Where
Salem County, West Portion
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
39.577, -75.358 (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 1999Every state in 1999This day in weather historyWarnings in New Jersey, May 1999

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: 5699507, 5699508, 5699587.