Sep 28, 2023
Due to persistent strong northeast flow along the coast and the combination of the lunar perigee and the full moon cycle, tide levels were abnormally high along the southeast South Carolina coast. Major coastal flooding occurred at the Charleston Harbor tide gage with the evening high tide.
Source: NOAA National Weather Service Storm Events Database (event 1142491). 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.