Flash Flood, Sussex
- When
- January 18, 4:30 PM EST to 8:30 PM EST
- Where
- Sussex County, East Portion
- Reported by
- NEWSPAPER
- Coordinates
- 41.140, -74.690 (the zone’s center; the record gives no point)
The combination of showers and thunderstorms with heavy rain, the already saturated ground and ice jams along area streams caused flooding and led to the collapse of the foundations of three homes in the county in Hamburg Borough and Andover Township. Two families were displaced.
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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 PHI wrote it up.
The combination of showers and thunderstorms with heavy rain, the already saturated ground and ice jams along area streams caused flooding and led to the collapse of the foundations of three homes in the county in Hamburg Borough and Andover Township. Two families were displaced. In one home, the flood waters flowed into the house and took out the basement causing the foundation to collapse. In Hamburg, the basement walls of another house imploded after water was forcing itself into the basement. In the third house, the back wall of a basement collapsed. New Jersey State Route 94 was flooded between Hardyston and Vernon. Road crews feverishly worked at removing ice from storm drains and roads that help exacerbate the flooding in the county. Storm totals were not excessively large, but this event came just a couple of days after another heavy precipitation event. The combination of the heavy rain, ice melt, clogged catch basins and saturated ground all contributed to the flooding. Rainfall totals from the 18th included 1.18 inches in Wantage, .80 in Montague and .78 in Newton.
The national radar mosaic for the moment the first event began.
1 flash 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, January 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: 5685306.