Flash Flood — Northampton, Pennsylvania

2021-09-01 · near Berlinsville, Northampton, Pennsylvania

Event narrative

Widespread flash flooding occurred in Northampton County with many road closures. There was flooding along numerous waterways in the county, including the Lehigh River and the Monocacy Creek.

Wider weather episode

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.

View location on OpenStreetMap → (40.7691, -75.5746)

Source: NOAA Storm Events Database, event_id 981400. Narrative written by the NWS forecast office that issued the report.