Sep 7, 2025
Scattered thunderstorms developed in the early afternoon hours along a cold front and near a weak area of low pressure. These storms moved slowly across the Charleston metro area through the mid afternoon and produced very heavy rainfall. The excessive rainfall resulted in numerous instances of flash flooding across the Charleston peninsula as well as in the West Ashley area. Observed rainfall amounts from CoCoRaHS observers and automated rain gages ranged from 1.5-4.0 inches for the entire even
Source: NOAA National Weather Service Storm Events Database (event 1288920). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Charleston County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.