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

Beach Hazards Statement issued June 22 at 2:33AM CDT until June 23 at 4:00AM CDT by NWS Chicago IL

Effective: Mon June 22, 2026, 2:33 AM
Expires: Mon June 22, 2026, 10:45 AM

* WHAT...High wave action and dangerous currents expected at Lake Michigan beaches. Waves 4 to 6 ft expected. * WHERE...In Illinois, Central Cook County. In Indiana, Lake and Porter Counties. * WHEN...Through late tonight. * IMPACTS...Swimming conditions will be life threatening, especially for inexperienced swimmers. For information on swim advisories or bans at Chicago beaches: www. cpdbeaches. com.

Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures.

Flood Warning issued June 21 at 8:43PM CDT until June 23 at 1:00AM CDT by NWS Chicago IL

Effective: Sun June 21, 2026, 8:43 PM
Expires: Mon June 22, 2026, 2:45 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. 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...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

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 issued June 21 at 8:43PM CDT until June 22 at 9:00PM CDT by NWS Chicago IL

Effective: Sun June 21, 2026, 8:43 PM
Expires: Mon June 22, 2026, 2:45 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. 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

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.