Jul 1, 2025
A cold front stationed across west-central Pennsylvania began traversing eastward across the area during the afternoon hours of July 1, 2025. Ample instability and moisture ahead of the frontal passage allowed for showers and thunderstorms to develop, with thunderstorms producing rainfall rates well over an inch an hour. Shear across western and central Pennsylvania remained relatively low, keeping the severe potential to a minimum in these areas before encountering 30 knots of effective bulk sh
Source: NOAA National Weather Service Storm Events Database (event 1278484). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Lancaster County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.