Flash Flood — Beaver, Pennsylvania

2007-07-05 · near Aliquippa, Beaver, Pennsylvania

Event narrative

A retired NWS employee reported flash flooding in Aliquippa, Monaca, and surrounding towns from rainfall of 3 to over 4 inches in 2 hours. Over 500 buildings and homes sustained damage across Beaver county with around 50 families displaced from homes.

Wider weather episode

A mesoscale convective vortex ahead of a cold front over Lake Erie produced an area of thunderstorms with very heavy rainfall. Rainfall amounts across Beaver county reached more than 4 inches in 2 hours with reports of 2 to 3 inches in 2 hours common in other counties.

View location on OpenStreetMap → (40.6200, -80.2800)

Source: NOAA Storm Events Database, event_id 48171. Narrative written by the NWS forecast office that issued the report.