Flood Warning

Locations Affected

Hammond, IN ∙ Lansing, IL ∙ Highland, IN ∙ Munster, IN ∙ Calumet City, IL

Headline

...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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&

Full Alert Message

BULLETIN - IMMEDIATE BROADCAST REQUESTED Flood Warning National Weather Service Chicago IL 843 PM CDT Sun Jun 21 2026 ...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. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && ...FLOOD WARNING IN EFFECT FROM THIS EVENING TO EARLY TUESDAY MORNING... * WHAT...Minor flooding is forecast. * WHERE...Little Calumet River from IN-912 in Hammond downstream to confluence with Thorn Creek in South Holland, including the Munster (Hohman Avenue) gauge. * WHEN...From late this evening to late Monday evening. * IMPACTS...At 12.5 feet, Most areas outside of the levee-protected area are inundated in Hammond and Munster. * ADDITIONAL DETAILS... - At 8:00 PM CDT Sunday the stage was 10.4 feet. - Forecast...The river is expected to rise above flood stage late this evening to a crest of around 13 feet tomorrow morning. It will then fall below flood stage tomorrow evening. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood && LAT...LON 4163 8756 4159 8740 4153 8743 4157 8758

---