Illinois Severe Flood Watch | Effective 09/20/2026 07:28

Headline: 
Flood Watch issued September 20 at 9:28AM CDT until September 21 at 7:00PM CDT by NWS Chicago IL
Event: 
Flood Watch
Urgency: 
Future
Effective: 
September 20, 2026 - 7:28am
Expires: 
September 21, 2026 - 1:30am
Description: 
...The Flood Watch is extended for the following rivers in Illinois... Du Page River at Shorewood affecting Will County. For the Du Page River...including Shorewood...flooding is possible. * WHAT...Flooding is possible. * WHERE...Du Page River from IL-59 in Plainfield downstream to confluence with Des Plaines River, including the Shorewood gauge. * WHEN...From late this afternoon to Monday evening. * IMPACTS...At 16.0 feet, Clark Drive threatened in Shorewood. * ADDITIONAL DETAILS... - At 8:45 AM CDT Sunday the stage was 13.8 feet. - Forecast...Flood stage may be reached based on the latest forecast information. - Flood stage is 15.5 feet. - http://www.weather.gov/safety/flood
Instruction: 
A Flood Watch means water levels above flood stage are possible, but not yet certain, based upon the latest forecasts. Persons along rivers and streams in the watch area should monitor the latest forecasts and be prepared to take action should flooding develop. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by late tonight.
Area Description: 
Northern Will; Southern Will
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov