Mar 21, 2002
Heavy rains of 1.00 to 2.50 inches across the Monongahela River basin resulted in minor flooding on the Monongahela River in southwest Pennsylvania. The Monongahela River crested at Charleroi at 28.1 feet (flood stage 28.0 feet) at 7 AM on March 21st, while just a bit further upstream at Elizabeth, the river crested at 7:30 AM on March 21st at 20.2 feet (flood stage 20.0 feet).
Source: NOAA National Weather Service Storm Events Database (event 5286904). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Allegheny County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.