Pennsylvania, 1996

Flash Flood in Pennsylvania, December 2, 1996

December 2, 1996 · NWS PHI · 1 event in 1 county or zone

Rain, which fell from December 1st into the morning of the 2nd, became heavy at times during the early morning hours on the second. This caused flooding on some of the smaller creeks and streams as well as urban flooding in Chester County.

Where it happened

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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.

Rain, which fell from December 1st into the morning of the 2nd, became heavy at times during the early morning hours on the second. This caused flooding on some of the smaller creeks and streams as well as urban flooding in Chester County. At the Philadelphia International Airport, 0.56 inches of rain fell within an hour between 2 a.m. and 3 a.m. EST on the 2nd. The East Branch of the Brandywine Creek at Downingtown was above its 7 foot flood stage from 5 a.m. through 830 a.m. EST on the 2nd. It crested at 7.2 feet at 630 a.m. EST on the 2nd. Farther downstream along the main stem of the Brandywine, the intersection of Pennsylvania State Routes 100 and 926 along the Birmingham/Pocopson Townships border was closed due to the creek's flooding. During the late afternoon and early evening of the 2nd, some flooding occurred along the Schuylkill River. No serious injuries or damage were reported. Storm totals included 2.52 inches in Honeybrook and 2.22 inches in Glenmoore.

The radar

The Philadelphia radar (KDIX), 114 km away, was scanning. The volume nearest the first event began at 10:00 UTC.

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Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, Chester

When
December 2, 5:00 AM EST to 8:30 AM EST
Where
Chester County, Countywide
Coordinates
39.973, -75.748 (the zone’s center; the record gives no point)

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

More

Every storm in Pennsylvania in 1996Every state in 1996This day in weather historyWarnings in Pennsylvania, December 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: 5576733.