Flash Flood, Mercer
- When
- July 14, 9:30 AM EST to 11:30 AM EST
- Where
- Mercer County, Northern
- Coordinates
- 40.283, -74.702 (the zone’s center; the record gives no point)
Flash Flood in New Jersey, July 14, 1996
Thunderstorms with very heavy rain caused the flooding of small streams as well as urban and poor drainage flooding across northern Mercer County. Hopewell reported 2 inches of rain, most of which fell within one hour.
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.
Thunderstorms with very heavy rain caused the flooding of small streams as well as urban and poor drainage flooding across northern Mercer County. Hopewell reported 2 inches of rain, most of which fell within one hour. The storm total at Washington Crossing was 2.07 inches.
The radar
The Philadelphia radar (KDIX), 45 km away, was scanning. The volume nearest the first event began at 14:28 UTC.
Event by event
1 flash flood. Local standard time, as filed.
What these are
- Flash Flood
- Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Flash Flood in New Mexico, July 14, 1996
- Lightning Strike in Virginia, July 14, 1996
- Damaging Wind in Vermont, July 14, 1996
- Lightning Strike in Pennsylvania, July 14, 1996
- Lightning Strike in North Carolina, July 14, 1996
- Damaging Wind in Vermont, July 14, 1996
- Lightning Strike in South Carolina, July 14, 1996
- Flash Flood in Colorado, July 14 to 15, 1996
- Hail in New York, July 14, 1996
- Damaging Wind in New York, July 14, 1996
- Tornado in Arizona, July 14, 1996
- Lightning Strike in New Hampshire, July 14, 1996
More
Every storm in New Jersey in 1996Every state in 1996This day in weather historyWarnings in New Jersey, July 1996
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: 5562843.