Illinois, Missouri Severe Flood Watch | Effective 07/11/2026 11:56

Headline: 
Flood Watch issued July 11 at 1:56PM CDT until July 11 at 7:00PM CDT by NWS St Louis MO
Event: 
Flood Watch
Urgency: 
Future
Effective: 
July 11, 2026 - 11:56am
Expires: 
July 11, 2026 - 5:00pm
Description: 
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of southwest Illinois, including the following areas, Monroe IL and Randolph IL and Missouri, including the following areas, Crawford MO, Franklin MO, Gasconade MO, Iron MO, Jefferson MO, Madison MO, Reynolds MO, Saint Francois MO, Sainte Genevieve MO and Washington MO. * WHEN...Until 7 PM CDT this evening. * IMPACTS...Low-water crossings may be flooded. Extensive street flooding and flooding of creeks and rivers are possible. * ADDITIONAL DETAILS... - Scattered showers and thunderstorms are expected through today with locally heavy rainfall likely to accompany thunderstorms. Thunderstorms will be capable of producing rainfall rates of 1-2" per hour with the strongest cells. Additional totals of 1-3" are possible with locally higher amounts. Areas that have been affected by excessive rainfall in the previous 24-36 hours will be highly susceptible to flash flooding.
Instruction: 
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Area Description: 
Randolph; Monroe; Gasconade; Franklin; Jefferson; Crawford; Washington; St. Francois; Ste. Genevieve; Iron; Madison; Reynolds
Forcast Office: 
NWS St Louis MO