Aug 16, 2025
Thunderstorms developed in a highly unstable environment along a lingering boundary from a MCS that moved through the night before. Weak flow led to slow moving storms, propagating slowly along an outflow boundary. With precipitable water exceeding 2 inches and high soil moisture, this led to flash flooding near the Savannah River.
Source: NOAA National Weather Service Storm Events Database (event 1279294). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in McCormick County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.