Flash Flood in Delaware County, Pennsylvania

Flash Flood September 1, 2021 · Delaware County, Pennsylvania

$15.0M

Damage as recorded

Where the report was made, with tornadoes recorded within 15 miles over the years.

What the National Weather Service wrote

Widespread flash flooding occurred in Delaware County with numerous road closures. Many creeks in the county overflowed their banks, including Chester Creek, Ridley Creek, Crum Creek and Cobbs Creek.

The wider storm

Post Tropical Cyclone Ida brought heavy rain to eastern Pennsylvania on September 1. Rainfall totals were as high as 5 to 10 inches. The heavy rain caused significant flash flooding, mainly in the southeastern part of the state. It resulted in widespread property damage. There were several fatalities.

Began near Booth Corner (39.8350, -75.4868).

Source: NOAA Storm Events Database, event 981451. Narratives are written by the National Weather Service forecast office that issued the report.

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