Flash Flood, Mercer
- When
- June 12, 6:00 PM EST to June 13, 7:00 AM EST
- Where
- Mercer County, Western
- Property damage
- $8.0 million
- Coordinates
- 40.283, -74.702 (the zone’s center; the record gives no point)
6 inches of rain within four hours in western Mercer County. This caused widespread flash flooding throughout the area.
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.
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.
Nearly stationary thunderstorms dropped between 3.5 and 7.6 inches of rain within four hours in western Mercer County. This caused widespread flash flooding throughout the area. Nearly every roadway was flooded. The 7.6 inches of rain represents about a daily one hundred year storm. No one was killed or seriously injured, but about 8 million dollars in property damage occurred, most of it in Ewing. One bridge was washed out. Over 100 homes, 10 apartment buildings and numerous businesses suffered flood damage. The county was declared a major disaster area.In Ewing, the Shabakunk Creek was the major culprit. It made an island out of Fleetwood Village and flooded over 100 homes. Hundreds of residents had to be evacuated by boats, jet skis and front end loaders. The Parkway Diner nearly collapsed. The western part of Trenton was also flooded. About 40 families were displaced at the Brookfield Gardens Apartment. Four roadways near the Assunpink Creek were closed due to flooding. The Assunpink Creek in Trenton crested at 11.7 feet at 445 a.m. EDT on the 13th. Storm totals included 7.6 inches in Lawrenceville, 7.1 inches in Lawrenceville and Ewing, 6.63 inches in Ewingville, 3.84 inches in Washington's Crossing and 3.5 inches in Downtown Trenton.
The Philadelphia radar (KDIX), 45 km away, was scanning. The volume nearest the first event began at 22:57 UTC.
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 1996Every state in 1996This day in weather historyWarnings in New Jersey, June 1996
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: 5567094.