Station Name: Winthrop Harbor Buoy, IL
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 574 feet

Nearest Address:
Offshore
Winthrop Harbor, IL 60096
Lake County

GPS Coordinates: 42.491, -87.779

Nearby Water Temperatures

Flood Watch issued April 10 at 10:05PM CDT until April 12 at 1:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri April 10, 2026, 10:05 PM
Expires: Sat April 11, 2026, 6:15 AM

...The Flood Watch continues for the following rivers in Wisconsin... Illinois... Fox River Lower Near New Munster affecting Kenosha and Lake Counties. * WHAT...Flooding is possible. * WHERE...Fox River Lower near New Munster. * WHEN...Until early Sunday afternoon. * IMPACTS...At 11.0 feet, Floodwaters begin to affect 77th St. in the Town of Wheatland. Floodwaters are near some homes along Riverside Dr, Shorewood Dr, and Highway W in the Village of Salem Lakes and Town of Wheatland areas. Fox River Park boat launch starts to flood. * ADDITIONAL DETAILS... - At 9:00 PM CDT Friday the stage was 10.6 feet. - Forecast...Flood stage may be reached early Sunday morning. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood

If you are in the watch area, remain alert to possible flooding. Additional information is available at www.weather.gov. The next statement will be issued Saturday morning at 615 AM CDT.

Flood Watch issued April 11 at 4:02AM CDT until April 12 at 1:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Sat April 11, 2026, 4:02 AM
Expires: Sat April 11, 2026, 12:15 PM

...The Flood Watch continues for the following rivers in Illinois... Wisconsin... Fox River Lower Near New Munster affecting Kenosha and Lake Counties. * WHAT...Flooding is possible. * WHERE...Fox River Lower near New Munster. * WHEN...Until early tomorrow afternoon. * IMPACTS...At 11.0 feet, Floodwaters begin to affect 77th St. in the Town of Wheatland. Floodwaters are near some homes along Riverside Dr, Shorewood Dr, and Highway W in the Village of Salem Lakes and Town of Wheatland areas. Fox River Park boat launch starts to flood. * ADDITIONAL DETAILS... - At 3:00 AM CDT Saturday the stage was 10.7 feet. - Forecast...Flood stage may be reached just after midnight tonight. - Flood stage is 11.0 feet. - http://www.weather.gov/safety/flood

If you are in the watch area, remain alert to possible flooding. Additional information is available at www.weather.gov. The next statement will be issued this afternoon at 1215 PM CDT.

Flood Warning issued April 10 at 9:04PM CDT by NWS Chicago IL

Effective: Fri April 10, 2026, 9:04 PM
Expires: Sat April 11, 2026, 3:15 PM

...The Flood Warning continues for the following rivers in Illinois... Fox River at Algonquin Lock & Dam tailwater affecting McHenry, Lake IL and Kane Counties. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge. * WHEN...Until further notice. * IMPACTS...At 10.0 feet, Winaki Trail and Onaway Trail are threatened south of Algonquin. Athletic fields inundated at Judson College in Elgin. * ADDITIONAL DETAILS... - At 8:30 PM CDT Friday the stage was 9.9 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM CDT Friday was 10.0 feet. - Forecast...The river is expected to gradually fall below flood stage early next week. - Flood stage is 9.5 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 Saturday afternoon.

Flood Warning issued April 10 at 9:02PM CDT until April 12 at 7:00AM CDT by NWS Chicago IL

Effective: Fri April 10, 2026, 9:02 PM
Expires: Sat April 11, 2026, 3:15 PM

...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River near Russell affecting Lake IL County. For the Des Plaines River...including Russell, Gurnee...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Des Plaines River from IL/WI state line downstream to US-41 in Gurnee, including the Russell gauge. * WHEN...Until Sunday morning. * IMPACTS...At 7.0 feet, Low-lying wetlands and agricultural land is inundated near the river. * ADDITIONAL DETAILS... - At 8:30 PM CDT Friday the stage was 7.3 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM CDT Friday was 7.7 feet. - Forecast...The river is expected to fall below flood stage Sunday morning and continue falling next week. - Flood stage is 7.0 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 Saturday afternoon.

Flood Warning issued April 10 at 9:02PM CDT until April 12 at 1:00PM CDT by NWS Chicago IL

Effective: Fri April 10, 2026, 9:02 PM
Expires: Sat April 11, 2026, 3:15 PM

...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River near Russell affecting Lake IL County. For the Des Plaines River...including Russell, Gurnee...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Des Plaines River from US-41 in Gurnee downstream to Townline Road in Vernon Hills, including the Gurnee gauge. * WHEN...Until early Sunday afternoon. * IMPACTS...At 7.0 feet, Forest land inundated near the river in Gurnee. * ADDITIONAL DETAILS... - At 8:30 PM CDT Friday the stage was 7.6 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM CDT Friday was 8.0 feet. - Forecast...The river is expected to fall below flood stage Sunday morning and continue falling next week. - Flood stage is 7.0 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 Saturday afternoon.