Jul 27, 2025
Morning showers congealed into a cluster of thunderstorms along the Mason Dixon line in the early afternoon hours. A very moisture rich environment with mid 70s dew points, highly anomalous PWAT values up to 2.3, and 3000 J/kg MUCAPE resulted in flash flooding. Observed and radar estimated rainfall rates reached as high as 2 inches per hour and storm totals of 3-4 inches around urban areas.
Source: NOAA National Weather Service Storm Events Database (event 1282265). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Preston County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.