New Jersey, 1999

Heavy Rain in New Jersey, August 13, 1999

August 13, 1999 · NWS PHI · 3 events in 3 counties and zones

In addition to the frequent lightning and isolated occurrences of severe weather, the thunderstorms that rumbled through Northwest New Jersey brought heavy rain with them, most of which fell within one hour. Storm totals averaged around one inch.

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 and isolated occurrences of severe weather, the thunderstorms that rumbled through Northwest New Jersey brought heavy rain with them, most of which fell within one hour. Storm totals averaged around one inch. 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 1030 p.m. and Midnight EDT. The rain caused the usual poor drainage flooding problems. Storm totals included 1.95 inches in Berkshire Valley (Morris County), 1.68 inches in Phillipsburg (Warren County), 1.38 inches in Long Valley (Morris County), 1.25 inches in Belvidere (Warren County), 1.16 inches in Wantage (Sussex County), 1.08 inches in Lincoln Park (Morris County) and 1.00 inch in Sussex (Sussex County).

The radar

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

Open the radar archive at this moment

Event by event

3 heavy rain. Local standard time, as filed.

Heavy Rain, Warren

When
August 13, 9:20 PM EST to 10:30 PM EST
Where
Warren County, Countywide
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
40.857, -74.997 (the zone’s center; the record gives no point)

Heavy Rain, Sussex

When
August 13, 9:30 PM EST to 10:30 PM EST
Where
Sussex County, Countywide
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
41.140, -74.690 (the zone’s center; the record gives no point)

Heavy Rain, Morris

When
August 13, 10:00 PM EST to 11:00 PM EST
Where
Morris County, Countywide
Reported by
AWOS,ASOS,MESONET,ETC
Coordinates
40.862, -74.544 (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: 5717971, 5717970, 5717969.