Headline:
Flood Warning issued June 21 at 8:43PM CDT until June 22 at 9:00PM CDT by NWS Chicago IL
Event:
Flood Warning
Urgency:
Expected
Effective:
June 21, 2026 - 6:43pm
Expires:
June 22, 2026 - 12:45pm
Description:
...The National Weather Service in Chicago IL has issued a Flood
Warning for the following rivers in Indiana...Illinois...
Little Calumet River at Munster (Hohman Avenue) affecting Cook
and Lake IN Counties.
Thorn Creek at Thornton affecting Cook County.
For the Little Calumet River...including Munster (Hohman Avenue)...
Minor flooding is forecast.
* WHAT...Minor flooding is forecast.
* WHERE...Thorn Creek from Near Glenwood downstream to confluence
with Little Calumet River, including the Thornton gauge.
* WHEN...From late tonight to Monday evening.
* IMPACTS...At 9.0 feet, Water begins to be diverted through Thorn
Creek Diversion Tunnel.
* ADDITIONAL DETAILS...
- At 8:15 PM CDT Sunday the stage was 5.6 feet.
- Forecast...The river is expected to rise above flood stage
late tonight to a crest of just above 9 feet tomorrow morning
or around midday. It will then fall below flood stage
tomorrow afternoon.
- 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 Monday afternoon.
Area Description:
Cook, IL
Forcast Office:
NWS Chicago IL
Sender: