Headline:
Flood Watch issued September 20 at 10:20AM CDT until September 23 at 10:00AM CDT by NWS Chicago IL
Event:
Flood Watch
Urgency:
Future
Effective:
September 20, 2026 - 8:20am
Expires:
September 21, 2026 - 2:30am
Description:
...The National Weather Service in Chicago has issued a Flood Watch
for the following rivers in Illinois...
Illinois River at La Salle affecting Putnam, La Salle and Bureau
counties.
For the Illinois River (Upper)...including Morris, Ottawa, La
Salle...flooding is possible.
* WHAT...Flooding is possible.
* WHERE...Illinois River from Starved Rock Lock and Dam downstream to
confluence with Big Bureau Creek, including the La Salle gauge.
* WHEN...From Monday morning to Wednesday morning.
* ADDITIONAL DETAILS...
- At 9:45 AM CDT Sunday the stage was 13.4 feet.
- Forecast...Flood stage may be reached Monday afternoon.
- Flood stage is 20.0 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 late tonight.
Area Description:
Bureau; Putnam; La Salle
Forcast Office:
NWS Chicago IL
Sender:
w-nws.webmaster@noaa.gov