Jul 21, 2019
A cold front dropped down across the region on the morning of July 21st. Convective initiation was aided by increased low-level moisture convergence along the front, as well as destabilization of the atmosphere due to daytime heating. Convective inhibition was largely absent, and surface-based CAPE values exceeded 3000 J/kg over most of the region. Shear was marginal, but the instability was sufficient to allow for strong to severe thunderstorms with damaging wind gusts.||A moist environment w
Source: NOAA National Weather Service Storm Events Database (event 845036). 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.