Flash Flood, Mercer
- When
- June 22, 6:30 PM EST to June 23, 4:00 AM EST
- Where
- Mercer County, Countywide
- Coordinates
- 40.283, -74.702 (the zone’s center; the record gives no point)
Flash Flood in New Jersey, June 22 to 23, 1996
In addition to the wind damage, repeated thunderstorms with heavy rain caused flash flooding within the county. 87 inches fell in Princeton.
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.
In addition to the wind damage, repeated thunderstorms with heavy rain caused flash flooding within the county. Storm totals averaged two inches; 2.03 inches fell at Hightstown and 1.87 inches fell in Princeton. Serious flooding was again reported in Ewing. The Assunpink Creek reached its 7 foot flood stage at 730 p.m. EDT, crested at 8.7 feet at 1 a.m. EDT on the 23rd and was back within bankfull by 5 a.m. EDT. No injuries were reported.
The radar
The Philadelphia radar (KDIX), 45 km away, was scanning. The volume nearest the first event began at 23:27 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 Kentucky, June 22 to 23, 1996
- Heat in South Carolina, June 22, 1996
- Heat in Missouri, June 22, 1996
- Damaging Wind in New Jersey, June 22, 1996
- Tornadoes in Pennsylvania, June 22, 1996
- Flood in Nebraska, June 22 to 23, 1996
- Tornado in Michigan, June 22, 1996
- Flash Flood in Michigan, June 22, 1996
- Flash Flood in Michigan, June 22, 1996
- Damaging Wind in Mississippi, June 22, 1996
- Damaging Wind in New York, June 22, 1996
- Tornado in New York, June 22, 1996
More
Every storm in New Jersey in 1996Every state in 1996This day in weather historyWarnings in New Jersey, June 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: 5567666.