Aug 2, 2019
A trough was in place across the eastern part of the country on August 2nd. A weak shortwave moving through that upper system induced an inverted surface trough that slid slowly westward across southwest Pennsylvania through the day. Storms initially formed to the northeast of Pittsburgh, with one storm causing wind damage in Jefferson County. ||Thunderstorms then developed westward during the afternoon, following the surface trough. Instability was sufficient for strong updrafts which produ
Source: NOAA National Weather Service Storm Events Database (event 848219). 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.