Station Name: Lockport L&D 2
Data Source: USGS

Elevation Above Sea Level: 561 feet

Nearest Address:
South Powerhouse Drive
Lockport, IL 60434
Will County

GPS Coordinates: 41.5697, -88.0783

Nearby Water Temperatures

Flood Advisory issued June 11 at 10:49PM CDT until June 12 at 4:45AM CDT by NWS Chicago IL

Effective: Thu June 11, 2026, 10:49 PM
Expires: Fri June 12, 2026, 4:45 AM

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...Portions of eastern Will County in Illinois and Lake and Porter counties in Indiana * WHEN...Until 445 AM CDT. * IMPACTS...Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - At 1047 PM CDT, multiple stream gauges indicated rises above bankfull and flood stage across the area. Streams may continue to rise into the overnight hours from earlier heavy rainfall. Some poor drainage areas may continue to recede slowly. - Some locations that will experience flooding include... Hammond, Gary, Portage, Merrillville, Valparaiso, Schererville, Hobart, Crown Point, Highland, Munster, Chesterton, Cedar Lake, Griffith, Dyer, St. John, Lake Station, South Haven, Winfield, New Chicago and Burns Harbor. - http://www.weather.gov/safety/flood

A Flood Advisory means minor flooding along waterways and other poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters.

Flood Warning issued June 11 at 9:47PM CDT until June 13 at 1:00AM CDT by NWS Chicago IL

Effective: Thu June 11, 2026, 9:47 PM
Expires: Fri June 12, 2026, 4:00 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. For the Thorn Creek...including Thornton...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 early Saturday morning. * IMPACTS...At 8.0 feet, Athletic fields are inundated at Glenwood Academy. At 9.0 feet, Water begins to be diverted through Thorn Creek Diversion Tunnel. * ADDITIONAL DETAILS... - At 9:30 PM CDT Thursday the stage was 8.3 feet. - Forecast...The river is expected to rise above flood stage around midnight tonight and crest near 9.5 feet tomorrow 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. Additional information is available at www.weather.gov. The next statement will be issued by Friday afternoon.

Flood Warning issued June 11 at 9:44PM CDT until June 12 at 7:00PM CDT by NWS Chicago IL

Effective: Thu June 11, 2026, 9:44 PM
Expires: Fri June 12, 2026, 3:45 PM

...The National Weather Service in Chicago IL has issued a Flood Warning for the following rivers in Illinois...Indiana... Little Calumet River at Munster (Hohman Avenue) affecting Lake IN and Cook Counties. 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...Until tomorrow evening. * IMPACTS...At 12.5 feet, Most areas outside of the levee-protected area are inundated in Hammond and Munster. * ADDITIONAL DETAILS... - At 9:00 PM CDT Thursday the stage was 10.7 feet. - Forecast...The river is expected to quickly rise above flood stage late this evening to a crest near 13.0 feet late 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. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Additional information is available at www.weather.gov. The next statement will be issued by Friday afternoon.

Flood Advisory issued June 11 at 9:06PM CDT until June 12 at 3:00AM CDT by NWS Chicago IL

Effective: Thu June 11, 2026, 9:06 PM
Expires: Fri June 12, 2026, 3:00 AM

* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Portions of north central and northeast Illinois, including the following counties, in north central Illinois, Boone, De Kalb, Lee, Ogle and Winnebago. In northeast Illinois, Lake IL and McHenry. * WHEN...Until 300 AM CDT. * IMPACTS...Creeks and streams may rise out of their banks. Roads and streets may be flooded. * ADDITIONAL DETAILS... - At 902 PM CDT, Doppler radar indicated that heavy rainfall has ended. Runoff from the 2, to locally 3, inches of rain that fell across the advisory area will continue to lead to minor flooding through the remainder of the evening. Conditions will improve overnight. - Flooding impacts will continue, but no additional rainfall is expected. - Some locations that will experience flooding include... Rockford, Waukegan, Crystal Lake, Gurnee, Round Lake Beach, McHenry, Belvidere, Woodstock, Zion, Loves Park, Machesney Park, Grayslake, Libertyville, Round Lake, Dixon, Antioch, Wauconda, Roscoe, Fox Lake and Harvard. - http://www.weather.gov/safety/flood

A Flood Advisory means minor flooding along waterways and other poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters. Be especially cautious at night when it is harder to recognize the dangers of flooding.

Flood Warning issued June 11 at 4:37PM CDT by NWS Chicago IL

Effective: Thu June 11, 2026, 4:37 PM
Expires: Fri June 12, 2026, 10:45 AM

...The National Weather Service in Chicago IL has issued a Flood Warning for the following rivers in Illinois... Vermilion River near Leonore affecting La Salle County. Illinois River at La Salle affecting Putnam, Bureau and La Salle Counties. Sugar Creek at Milford affecting Iroquois County. For the Vermilion River (Illinois Basin)...including Leonore...Minor flooding is forecast. * WHAT...Minor flooding is forecast. * WHERE...Illinois River from Starved Rock Lock and Dam downstream to confluence with Big Bureau Creek, including the La Salle gauge. * WHEN...From late tonight until further notice. * IMPACTS...At 22.0 feet, Lower parking lot at Starved Rock State Park is inundated east of La Salle. High water levels begin to impact shipping interests along the river. * ADDITIONAL DETAILS... - At 3:45 PM CDT Thursday the stage was 19.2 feet. - Forecast...The river is expected to rise above flood stage just after midnight tonight and continue rising to a crest of 23.8 feet early Saturday afternoon. - Flood stage is 20.0 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 Friday morning.