Station Name: GRAND CALUMET RIVER AT COLUMBIA AV AT HAMMOND, IN
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 597 feet

Nearest Address:
5225 Columbia Ave
Hammond, IN 46320
Lake County

GPS Coordinates: 41.6186111, -87.4998333

Nearby Water Temperatures

Flood Warning issued June 24 at 10:56PM CDT until June 26 at 7:00AM CDT by NWS Chicago IL

Effective: Wed June 24, 2026, 10:56 PM
Expires: Thu June 25, 2026, 5:00 PM

...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. * WHAT...Near flood stage water levels likely. * 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 this evening to Friday morning. * IMPACTS...At 10.0 feet, Water overflows low-lying river banks outside of the levee-protected area in Hammond and Munster. At 12.5 feet, Most areas outside of the levee-protected area are inundated in Hammond and Munster. * ADDITIONAL DETAILS... - At 10:00 PM CDT Wednesday the stage was 11.0 feet. - Forecast...The river is expected to near flood stage overnight tonight. - Flood stage is 12.0 feet. - http://www.weather.gov/safety/flood

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. Additional information is available at www.weather.gov. The next statement will be issued by Thursday afternoon.

Flood Warning issued June 25 at 3:53AM CDT until June 25 at 5:49PM CDT by NWS Chicago IL

Effective: Thu June 25, 2026, 3:53 AM
Expires: Thu June 25, 2026, 6:00 PM

...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...Minor flooding likely. * WHERE...Thorn Creek from Near Glenwood downstream to confluence with Little Calumet River, including the Thornton gauge. * WHEN...From early this morning to late this afternoon. * IMPACTS...At 9.0 feet, Water begins to be diverted through Thorn Creek Diversion Tunnel. * ADDITIONAL DETAILS... - At 3:30 AM CDT Thursday the stage was 8.7 feet. - Forecast...The river is expected to crest just above flood stage this morning. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood

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 this evening.