Jun 1, 2008
Showers and thunderstorms developed in association with several upper level disturbances that quickly moved through northwest upper level flow. The thunderstorms quickly became severe due to daytime heating especially during the afternoon and evening hours. The thunderstorms produced large hail, damaging winds, and locally heavy rain which produced flash flooding.
Source: NOAA National Weather Service Storm Events Database (event 119656). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Chester County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.