Flood, Union
- When
- May 24, 9:00 AM EST to 11:00 AM EST
- Where
- Union County, Countywide
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.660, -74.309 (the zone’s center; the record gives no point)
The two most significant lines moved across the region during the late morning and late afternoon. They produced torrential rain that caused flooding of many low-lying and poor drainage areas, including streets.
Every event with a place to put it; 8 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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.
The episode as NWS OKX wrote it up.
Several lines of heavy showers and thunderstorms formed ahead of a slow moving cold front.The two most significant lines moved across the region during the late morning and late afternoon. They produced torrential rain that caused flooding of many low-lying and poor drainage areas, including streets. The axis of heaviest rain fell from Eastern Union County northeast across Southeast Essex, Hudson, and Southern Bergen County. Two to three inches of rain fell along this axis. A spotter from Harrison in Hudson County measured 2.55 inches.
The national radar mosaic for the moment the first event began.
8 flood. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in New Jersey in 1999Every state in 1999This day in weather historyWarnings in New Jersey, May 1999
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: 5700993, 5700994, 5700995, 5700996, 5700997, 5700998, 5700999, 5701000.