Jul 21, 2024
Numerous reports of flash flooding north of Columbia due to training thunderstorms with extremely high rain rates. Moderate instability, weak but parallel mid-level flow to the low level moisture convergence axis, and precipitable water values over 2.1 inches caused several hours with 2-3 inch per hour rain fall rates. Several locations exceeded 3 inch per hour rates and totals exceeded 5 inches locally.
Source: NOAA National Weather Service Storm Events Database (event 1195230). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Richland County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.