Headline:
Flood Warning issued July 3 at 11:39PM CDT until July 5 at 7:00AM CDT by NWS Chicago IL
Event:
Flood Warning
Urgency:
Expected
Effective:
July 3, 2026 - 9:39pm
Expires:
July 4, 2026 - 3:45pm
Description:
...The National Weather Service in Chicago IL has issued a Flood
Warning for the following rivers in Illinois...
Thorn Creek at Thornton affecting Cook County.
* WHAT...River flooding due to heavy rainfall.
* WHERE...Thorn Creek from Near Glenwood downstream to confluence
with Little Calumet River, including the Thornton gauge.
* WHEN...Until Sunday morning.
* IMPACTS...At 8.0 feet, Athletic fields are inundated at Glenwood
Academy.
At 9.0 feet, Water begins to be diverted through Thorn Creek
Diversion Tunnel.
* ADDITIONAL DETAILS...
- At 11:00 PM CDT Friday the stage was 7.0 feet.
- Forecast...The creek is expected to crest near or above flood
stage overnight tonight.
- Flood stage is 9.0 feet.
- http://www.weather.gov/safety/flood
Instruction:
A Flood Warning means water levels above flood stage are imminent or
may already be occurring. Persons along rivers and streams in the
warned area should take immediate precautions to protect life and
property.
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 Saturday afternoon.
Area Description:
Cook, IL
Forcast Office:
NWS Chicago IL
Sender: