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

Hydrologic Outlook issued April 14 at 12:33PM CDT by NWS Chicago IL

Effective: Tue April 14, 2026, 12:33 PM
Expires: Wed April 15, 2026, 12:00 PM

ESFLOT Waves of showers and thunderstorms are expected this evening through the end of the week. Urban and river flooding will be possible. Atmospheric conditions are favorable for some thunderstorms to have rainfall rates in excess of 1 to 2 inches per hour tonight and tomorrow. In addition, some rivers and streams remain elevated from recent rainfall and soil moisture is elevated across most of northern Illinois and northwestern Indiana. In urban and poor drainage areas isolated flooding of roadways, creeks, and streams may occur with areas of heaviest rainfall. Widespread rainfall may also lead to river rises and possible flooding, in particular along already elevated rivers such as the Fox, Des Plaines, and Kankakee. Additional chances for rainfall are expected to continue through the remainder of the week. This outlook means that elevated water levels and potential impacts are possible, but not yet certain. Persons should closely monitor forecasts including the possibility of flood watches, warnings, and advisories. This product will be updated by tomorrow morning.

Flood Watch issued April 14 at 10:35PM CDT by NWS Chicago IL

Effective: Tue April 14, 2026, 10:35 PM
Expires: Wed April 15, 2026, 4:45 PM

...The National Weather Service in Chicago IL has issued a Flood Watch for the following rivers in Indiana... Kankakee River at Shelby affecting Newton and Lake IN Counties. For the Kankakee River...including Shelby...flooding is possible. * WHAT...Flooding is possible. * WHERE...Kankakee River from Near I-65 and De Motte downstream to IL/IN state line, including the Shelby gauge. * WHEN...From Wednesday morning until further notice. * IMPACTS...At 10.5 feet, Water overflows low-lying river banks along Bluegrass Road east of Sumava Resorts and along Westwood Drive and Island Boulevard near Shelby. Water begins to be diverted through the Blackberry Marsh Spillway to reduce flood impacts. * ADDITIONAL DETAILS... - At 9:45 PM CDT Tuesday the stage was 10.3 feet. - Forecast...Rainfall will cause the river to rise and flood stage may be reached by Friday. - Flood stage is 10.5 feet. - http://www.weather.gov/safety/flood

A Flood Watch means water levels above flood stage are possible, but not yet certain, based upon the latest forecasts. Persons along rivers and streams in the watch area should monitor the latest forecasts and be prepared to take action should flooding develop. 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 Wednesday afternoon.

Flood Watch issued April 15 at 5:15AM CDT until April 16 at 1:00AM CDT by NWS Chicago IL

Effective: Wed April 15, 2026, 5:15 AM
Expires: Wed April 15, 2026, 3:00 PM

* WHAT...Flash flooding caused by excessive rainfall remains possible. * WHERE...Portions of Illinois, including the following areas, Boone, Central Cook, De Kalb, DuPage, Eastern Will, Kane, Kendall, Lake IL, McHenry, Northern Cook, Northern Will, Ogle, Southern Cook, Southern Will and Winnebago and northwest Indiana, including the following area, Lake IN. * WHEN...Through late tonight. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Roads and streets may be flooded. * ADDITIONAL DETAILS... - Multiple rounds of showers and thunderstorms are expected through this evening. Elevated soil moisture due to recent rainfall is expected to increase the susceptibility to flash flooding. - http://www.weather.gov/safety/flood

A Flood Watch for flash flooding means rapid-onset flooding is possible, but not yet certain, based upon the latest forecasts. Flash flooding is a dangerous situation. Persons with interests along area rivers, creeks, and other waterways should monitor the latest forecasts and be prepared to take action should flooding develop.

Flood Watch issued April 15 at 10:46AM CDT by NWS Chicago IL

Effective: Wed April 15, 2026, 10:46 AM
Expires: Thu April 16, 2026, 5:00 AM

...The Flood Watch continues for the following rivers in Indiana... Kankakee River at Shelby affecting Newton and Lake IN Counties. For the Kankakee River...including Shelby...flooding is possible. * WHAT...Flooding is possible. * WHERE...Kankakee River from Near I-65 and De Motte downstream to IL/IN state line, including the Shelby gauge. * WHEN...Until further notice. * IMPACTS...At 10.5 feet, Water overflows low-lying river banks along Bluegrass Road east of Sumava Resorts and along Westwood Drive and Island Boulevard near Shelby. Water begins to be diverted through the Blackberry Marsh Spillway to reduce flood impacts. * ADDITIONAL DETAILS... - At 9:45 AM CDT Wednesday the stage was 10.1 feet. - Forecast...Flood stage may be reached early Sunday afternoon. - Flood stage is 10.5 feet. - http://www.weather.gov/safety/flood

A Flood Watch means water levels above flood stage are possible, but not yet certain, based upon the latest forecasts. Persons along rivers and streams in the watch area should monitor the latest forecasts and be prepared to take action should flooding develop. 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 late tonight.

Flood Watch issued April 15 at 12:24AM CDT by NWS Chicago IL

Effective: Wed April 15, 2026, 12:24 AM
Expires: Wed April 15, 2026, 6:30 PM

...The National Weather Service in Chicago IL has issued a Flood Watch for the following rivers in Illinois... Des Plaines River near Des Plaines affecting Central Cook and Northern Cook zones. Des Plaines River near Russell affecting Lake IL zone. Des Plaines River at Lincolnshire affecting Lake IL and Northern Cook zones. For the Des Plaines River...including Russell, Lincolnshire, Des Plaines...flooding is possible. * WHAT...Flooding is possible. * WHERE...Des Plaines River from Palatine Road in Prospect Heights downstream to Irving Park Road in Chicago, including the Des Plaines gauge. * WHEN...From early this morning until further notice. * IMPACTS...At 15.0 feet, Structures threatened at Methodist Campground in Des Plaines. Forest preserve roadways are threatened. * ADDITIONAL DETAILS... - At 11:45 PM CDT Tuesday the stage was 13.2 feet. - Forecast...Due to recent and forecast rain, the river is rising and may exceed flood stage by tomorrow. - Flood stage is 15.0 feet. - http://www.weather.gov/safety/flood

A Flood Watch means water levels above flood stage are possible, but not yet certain, based upon the latest forecasts. Persons along rivers and streams in the watch area should monitor the latest forecasts and be prepared to take action should flooding develop. 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.