Illinois Flood Watch | Effective 04/19/2026 18:00

Headline: 
Flood Watch issued April 19 at 8:00PM CDT until April 21 at 7:00AM CDT by NWS Chicago IL
Event: 
Flood Watch
Urgency: 
Future
Effective: 
April 19, 2026 - 6:00pm
Expires: 
April 20, 2026 - 12:00pm
Description: 
...The Flood Watch continues for the following rivers in Illinois... Rock River at Dixon affecting Ogle and Lee Counties. * WHAT...Flooding is possible. * WHERE...Rock River from Castle Rock State Park near Oregon downstream to Lee County line, including the Dixon gauge. * WHEN...From Monday morning to Tuesday morning. * IMPACTS...At 16.0 feet, N Canal Drive threatened in Woodland Shores. Water overflows low-lying banks along west First Street in Dixon. Residential property threatened near Sherman Avenue and River Street in Dixon. * ADDITIONAL DETAILS... - At 7:15 PM CDT Sunday the stage was 15.8 feet. - Forecast...Flood stage may be briefly reached Monday morning before falling under Flood stage by early afternoon. - Flood stage is 16.0 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 Monday afternoon.
Area Description: 
Ogle; Lee
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov