Headline:
Flood Advisory issued September 20 at 7:32AM CDT until September 20 at 11:30AM CDT by NWS Chicago IL
Event:
Flood Advisory
Urgency:
Expected
Effective:
September 20, 2026 - 5:32am
Expires:
September 20, 2026 - 9:30am
Description:
* WHAT...Flooding caused by excessive rainfall is expected.
* WHERE...Southern De Kalb County in north central Illinois...
Lee County in north central Illinois...
* WHEN...Until 1130 AM CDT.
* IMPACTS...Creeks and streams may rise out of their banks. High
water may recede slowly from flooded areas.
* ADDITIONAL DETAILS...
- At 730 AM CDT, Doppler radar and automated rain gauges indicated
heavy rain due to thunderstorms early this morning. Minor
flooding continues in the advisory area. Between 2 and 5 inches
of rain have fallen.
- Though heavy rain is not expected through much of the morning,
standing water and elevated creeks and streams will persist this
morning.
- Some locations that will experience flooding include...
Sandwich, Amboy, Shabbona, Hinckley, Somonauk, Waterman, Paw Paw,
Sublette, Woodhaven Lakes, Lee, Compton, Nelson, West Brooklyn,
Harmon, Lee Center and Eldena.
- 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:
De Kalb, IL; Lee, IL
Forcast Office:
NWS Chicago IL
Sender:
w-nws.webmaster@noaa.gov