Jul 18, 2021
Thunderstorms produced isolated flash flooding. The storms occurred in the vicinity of a 500 mb trough that extended from the eastern Great Lakes southwest across the lower Ohio Valley. The convection itself was induced by a remnant mesoscale vorticity center that moved eastward from Missouri. The storms formed in an increasingly moist and unstable air mass. The wind flow aloft was weak, causing the storm motion to be driven by mesoscale processes. The storms generally propagated east to southea
Source: NOAA National Weather Service Storm Events Database (event 968022). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Graves County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.