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Flash Flood — Franklin, IL

Aug 13, 2020

Scattered thunderstorms produced very heavy rain across the lower Ohio Valley. The storms occurred in a moist and unstable air mass ahead of a slow-moving 500 mb disturbance over south central Illinois. The slow-moving storms initiated along a weak|low level convergence axis stretching from east central Missouri into southern Illinois and northwestern Kentucky. Precipitable water values across the region ranged from 1.6 to 2.0 inches, supporting locally heavy rainfall rates near two inches per h

Source: NOAA National Weather Service Storm Events Database (event 910210). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Franklin, IL

This event is one of many recorded floods in Franklin County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

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