Flash Flood in Lehigh County, Pennsylvania

Flash Flood September 1, 2021 · Lehigh County, Pennsylvania

$20.0M

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 Lehigh County with many road closures. There was flooding along numerous waterways in the county, including the Lehigh River and Little Lehigh 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 Steinsville (40.6611, -75.8469).

Source: NOAA Storm Events Database, event 981389. Narratives are written by the National Weather Service forecast office that issued the report.

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