Flood, Somerset
- When
- January 19, 12:00 AM EST to 7:00 AM EST
- Where
- Somerset forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 40.564, -74.616 (the zone’s center; the record gives no point)
Flood in New Jersey, January 19, 1999
The combination of showers and thunderstorms with heavy rain and the already saturated ground caused flooding along sections of the Raritan River in Somerset County. m.
Where it happened
Every event with a place to put it; 1 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 1
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.
The combination of showers and thunderstorms with heavy rain and the already saturated ground caused flooding along sections of the Raritan River in Somerset County. The Raritan River at Manville was above its 12 foot flood stage from midnight through 7 a..m. EST on the 19th. It crested at 12.99 feet at 4 a.m. EST. Some low lying area flooding was also reported along the Millstone River. The Griggstown Causeway was closed. The river came within a few yards of a couple of homes in Millstone Borough. Storm totals were not very heavy rain, but this event came within a couple of days of another heavy precipitation event. Rainfall totals included 1.40 inches in Pottersville, 1.10 inches in South Plainfield and Wertsville (Hunterdon County) , 1.08 inches in Somerville and 1.00 inch in Bound Brook.
The radar
The national radar mosaic for the moment the first event began.
Event by event
1 flood. Local standard time, as filed.
What these are
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- High Surf in Hawaii, January 19 to 22, 1999
- Winter Storm in California, January 19 to 20, 1999
- Heavy Snow in Idaho, January 19 to 20, 1999
- High Wind in Oregon, January 19, 1999
- Heavy Snow in Nevada, January 19 to 20, 1999
- Flood in New York, January 19 to 21, 1999
- Flood in New York, January 19 to 21, 1999
- Flood in Connecticut, January 19 to 21, 1999
- Avalanche in California, January 19 to 20, 1999
- Heavy Snow in California, January 19 to 20, 1999
- Heavy Snow in California, January 19 to 20, 1999
- Heavy Snow in California, January 19 to 20, 1999
More
Every storm in New Jersey in 1999Every state in 1999This day in weather historyWarnings in New Jersey, January 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 2026-09-30. Each event’s entry at NCEI: 5685301.