Flash Flood, Delaware
- When
- December 2, 4:00 AM EST to 7:00 AM EST
- Where
- Delaware County, Countywide
- Coordinates
- 39.917, -75.399 (the zone’s center; the record gives no point)
Rain, which fell from December 1st into the morning of the 2nd caused stream and creek flooding in Delaware County. The heaviest rain fell during the early morning of the 2nd.
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.
Rain, which fell from December 1st into the morning of the 2nd caused stream and creek flooding in Delaware County. The heaviest rain fell during the early morning of the 2nd. At the Philadelphia International Airport, 0.56 inches of rain fell within the hour between 2 a.m. and 3 a.m. on the 2nd. Chester Creek near Chester was above its 8 foot flood stage from 4 a.m. EST to 7a.m. EST on the 2nd. It crested at 8.6 feet at 6 a.m. EST. No serious injuries or damage were reported. Storm totals included 2.85 inches in Crum Creek, 2.25 inches in Chadds Ford and 1.78 inches at the Philadelphia International Airport.
The Philadelphia radar (KDIX), 84 km away, was scanning. The volume nearest the first event began at 09:02 UTC.
1 flash flood. Local standard time, as filed.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Pennsylvania in 1996Every state in 1996This day in weather historyWarnings in Pennsylvania, December 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: 5576732.