Illinois, Missouri Severe Flood Watch | Effective 08/14/2026 19:48

Headline: 
Flood Watch issued August 14 at 9:48PM CDT until August 15 at 10:00AM CDT by NWS St Louis MO
Event: 
Flood Watch
Urgency: 
Future
Effective: 
August 14, 2026 - 7:48pm
Expires: 
August 15, 2026 - 8:00am
Description: 
* WHAT...Flash flooding caused by excessive rainfall is possible. * WHERE...Portions of west central Illinois, including the following areas, Adams IL and Brown IL and northeast Missouri, including the following areas, Knox MO, Lewis MO, Marion MO and Shelby MO. * WHEN...From 1 AM CDT Saturday through Saturday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Thunderstorms producing heavy rainfall moving over the same areas will likely produce flash flooding.
Instruction: 
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Area Description: 
Adams; Brown; Knox; Lewis; Shelby; Marion
Forcast Office: 
NWS St Louis MO
Sender: 
w-nws.webmaster@noaa.gov