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 Warning issued April 7 at 4:27PM CDT until April 9 at 7:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Tue April 7, 2026, 4:27 PM
Expires: Wed April 8, 2026, 4:30 AM

...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Wisconsin River At Portage affecting Columbia County. Baraboo River At Reedsburg affecting Sauk County. Fox River Lower Near New Munster affecting Kenosha and Lake Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until Thursday evening. * IMPACTS...At 11.5 feet, Water is in the yards of some homes in the Village of Salem Lakes and Town of Wheatland areas, including Riverside Dr and Shorewood Dr. There are 3-4 inches of water over 77th Street in the Town of Wheatland. * ADDITIONAL DETAILS... - At 4:00 PM CDT Tuesday the stage was 11.7 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 4:00 PM CDT Tuesday was 12.1 feet. - Forecast...The river is expected to fall below flood stage early Thursday afternoon and continue falling to 9.4 feet Tuesday, April 14. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 11.7 feet on 05/10/2019. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov. The next statement will be issued late tonight at 100 AM CDT.

Flood Warning issued April 7 at 11:07PM CDT until April 9 at 1:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Tue April 7, 2026, 11:07 PM
Expires: Wed April 8, 2026, 11:15 AM

...The Flood Warning continues for the following rivers in Illinois...Wisconsin... Fox River Lower Near New Munster affecting Kenosha and Lake Counties. Wisconsin River At Portage affecting Columbia County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until early Thursday afternoon. * IMPACTS...At 11.5 feet, Water is in the yards of some homes in the Village of Salem Lakes and Town of Wheatland areas, including Riverside Dr and Shorewood Dr. There are 3-4 inches of water over 77th Street in the Town of Wheatland. * ADDITIONAL DETAILS... - At 10:00 PM CDT Tuesday the stage was 11.6 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:00 PM CDT Tuesday was 12.0 feet. - Forecast...The river is expected to fall below flood stage Thursday morning and continue falling to 9.3 feet Tuesday, April 14. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 11.7 feet on 02/08/2019. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Caution is urged when walking near riverbanks. Additional information is available at www.weather.gov. The next statement will be issued Wednesday morning at 1115 AM CDT.

Flood Warning issued April 7 at 10:01AM CDT until April 11 at 7:00AM CDT by NWS Chicago IL

Effective: Tue April 7, 2026, 10:01 AM
Expires: Wed April 8, 2026, 4:15 AM

...The Flood Warning continues for the following rivers in Illinois... Fox River at Algonquin Lock & Dam tailwater affecting McHenry, Kane and Lake IL Counties. For the Fox River (Illinois)...including Algonquin Lock & Dam tailwater...Minor flooding is forecasted. * WHAT...Minor flooding is occurring and forecasted to continue. * WHERE...Fox River from Johnsburg downstream to Red Gate Road in St. Charles, including the Algonquin Lock & Dam tailwater gauge. * WHEN...From this morning to Saturday morning. * IMPACTS...At 9.5 feet, Fox River Drive threatened in East Dundee. Boathouses threatened along the river in Cary. * ADDITIONAL DETAILS... - At 9:30 AM CDT Tuesday the stage was 9.5 feet. - Forecast...The river is expected to rise to a crest of 9.7 feet tomorrow morning. It is then expected to fall below flood stage Saturday morning. - 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 late tonight.

Flood Warning issued April 7 at 10:00AM CDT until April 9 at 4:00PM CDT by NWS Chicago IL

Effective: Tue April 7, 2026, 10:00 AM
Expires: Wed April 8, 2026, 4:00 AM

...The Flood Warning continues for the following rivers in Illinois... Des Plaines River at Lincolnshire affecting Lake IL and Cook Counties. 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, Lincolnshire...Minor flooding is forecasted. * WHAT...Minor flooding is occurring and forecasted to continue. * WHERE...Des Plaines River from IL/WI state line downstream to US-41 in Gurnee, including the Russell gauge. * WHEN...Until Thursday afternoon. * IMPACTS...At 8.0 feet, Agricultural and park land is inundated near the river. Residential property is threatened near the river. * ADDITIONAL DETAILS... - At 9:30 AM CDT Tuesday the stage was 8.7 feet. - Forecast...The river level is expected to gradually fall throughout the next few days and fall below flood stage Thursday morning. - 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 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 late tonight.

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

Effective: Tue April 7, 2026, 10:00 AM
Expires: Wed April 8, 2026, 4:00 AM

...The Flood Warning continues for the following rivers in Illinois... Des Plaines River at Lincolnshire affecting Lake IL and Cook Counties. 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, Lincolnshire...Minor flooding is forecasted. * WHAT...Minor flooding is forecasted. * WHERE...Des Plaines River from Townline Road in Libertyville downstream to Palatine Road in Prospect Heights, including the Lincolnshire gauge. * WHEN...From Wednesday afternoon to Friday morning. * IMPACTS...At 13.0 feet, Low-lying trails in Wright Woods Forest Preserve are inundated. * ADDITIONAL DETAILS... - At 8:45 AM CDT Tuesday the stage was 12.1 feet. - Forecast...The river is expected to rise above flood stage early tomorrow afternoon and crest near 12.7 feet Thursday morning. It is then expected to fall below flood stage early Friday morning. - Flood stage is 12.5 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 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 late tonight.