Illinois Minor Flood Advisory | Effective 09/20/2026 11:28

Headline: 
Flood Advisory issued September 20 at 1:28PM CDT until September 20 at 7:30PM CDT by NWS Chicago IL
Event: 
Flood Advisory
Urgency: 
Expected
Effective: 
September 20, 2026 - 11:28am
Expires: 
September 20, 2026 - 5:30pm
Description: 
* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Lee County in north central Illinois... * WHEN...Until 730 PM CDT Sunday. * IMPACTS...Creeks and streams may rise out of their banks. Slow moving or standing water may continue. High water likely may recede slowly from flooded areas. * ADDITIONAL DETAILS... - At 125 PM CDT, minor flooding continues in the advisory area after heavy rain due to thunderstorms early this morning. Between 2 and 5 inches of rain fell. - Though additional heavy rain is not expected, standing water and elevated creeks and streams will persist into this afternoon. A Flood Warning is also in effect along and near the Green River. - Some locations that will experience flooding include... Amboy, Paw Paw, Sublette, Woodhaven Lakes, Compton, West Brooklyn, Harmon and Lee Center. - http://www.weather.gov/safety/flood
Instruction: 
A Flood Advisory means minor flooding along waterways and other poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters.
Area Description: 
Lee, IL
Forcast Office: 
NWS Chicago IL
Sender: 
w-nws.webmaster@noaa.gov