Oct 6, 2021
A deep 500 MB low over the lower Mississippi Valley, and associated surface low that was nearly stationary beneath it, produced a humid tropical air mass over the area. Convection anchored over the southern Plateau and produced flash flooding in areas that flooded just a few weeks earlier.
Source: NOAA National Weather Service Storm Events Database (event 987562). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Sequatchie County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.