Jul 1, 2025
A mid-level trough, embedded shortwaves, and jet exit region dynamics provided necessary lift within an environment characterized by 1.7-1.9 precipitable water values to produce heavy, slow moving showers and thunderstorms that resulted in instances of flash flooding across western Pennsylvania.
Source: NOAA National Weather Service Storm Events Database (event 1271166). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Westmoreland County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.