Aug 17, 2021
Thunderstorms developed across east central Oklahoma during the early morning hours of the 17th. A very moist air mass across the region and weak wind flow aloft resulted in slow-moving thunderstorms that produced very heavy rainfall. More than four inches of rain fell across western portions of Sequoyah County in just a few hours, which resulted in flash flooding.
Source: NOAA National Weather Service Storm Events Database (event 979375). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Sequoyah County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.