New Jersey, 1999

Heavy Rain in New Jersey, August 14, 1999

August 14, 1999 · NWS PHI · 3 events in 3 counties and zones

In addition to the frequent lightning, the thunderstorms that rumbled through Central New Jersey brought heavy rain with them, most of which fell within two hours. Some flash flooding of small streams occurred in Northwest Burlington County.

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.

In addition to the frequent lightning, the thunderstorms that rumbled through Central New Jersey brought heavy rain with them, most of which fell within two hours. Some flash flooding of small streams occurred in Northwest Burlington County. Heavy, albeit lighter, rain though fell throughout the rest of the county, most of Ocean County and the southwestern neck of Monmouth County. Storm totals averaged between one and four inches. The highest amounts fell in the Pine Barrens. This was the heaviest and most widespread rain event in the area since May 24th and started to chip away at the drought. Heavy rain fell mainly between 1 a.m. and 4 a.m. EDT on the 14th and exited the Ocean County coast around 530 a.m. EDT. The rain caused the usual poor drainage flooding problems. Storm totals included 3.90 inches in Atsion (Burlington County), 3.20 inches in Lakehurst (Ocean County), 2.96 inches in Willingboro (Burlington County), 2.89 inches in Mount Holly (Burlington County), 2.34 inches in Harvey Cedars (Ocean County) and 1.41 inches in Mount Laurel (Burlington County).

The radar

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

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Event by event

3 heavy rain. Local standard time, as filed.

Heavy Rain, Monmouth

When
August 14, 12:00 AM EST to 2:00 AM EST
Where
Monmouth County, Imlaystown
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
40.288, -74.158 (the zone’s center; the record gives no point)

Heavy Rain, Burlington

When
August 14, 12:15 AM EST to 4:00 AM EST
Where
Burlington County, Palmyra
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
39.878, -74.668 (the zone’s center; the record gives no point)

Heavy Rain, Ocean

When
August 14, 1:00 AM EST to 4:30 AM EST
Where
Ocean County, Countywide
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
39.866, -74.250 (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.

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, August 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: 5717975, 5717977, 5717976.