Sep 13, 2020
A stationary frontal boundary stalled across the central portions of Middle Tennessee from Saturday, September 12, 2020 into Sunday, September 13, 2020. Persistent southwest flow aloft brought copious amounts of Gulf of Mexico moisture northward and interacted with this boundary, causing a roughly 7 hour period of nearly continuous heavy rain and thunderstorms. Rainfall totals reached 5 to over 8 in some locations, resulting in major flash flooding and river flooding along a narrow corridor acro
Source: NOAA National Weather Service Storm Events Database (event 921830). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Williamson County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.