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 17 at 10:40AM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri April 17, 2026, 10:40 AM
Expires: Fri April 17, 2026, 10:45 PM

...The Flood Warning is extended for the following rivers in Wisconsin...Illinois... Baraboo River Near Baraboo affecting Columbia and Sauk Counties. Fox River Lower At Waukesha affecting Waukesha County. Sugar River At Brodhead affecting Rock, Winnebago and Green Counties. Wisconsin River At Portage affecting Columbia County. ...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Milwaukee River Near Cedarburg affecting Ozaukee County. Root River At Franklin affecting Milwaukee County. Root River Canal At Raymond affecting Racine County. Wisconsin River At Wisconsin Dells affecting Columbia and Sauk Counties. Rock River At Afton affecting Rock and Winnebago Counties. Rock River At Jefferson affecting Jefferson County. ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County. Fox River Near Berlin affecting Green Lake County. Crawfish River At Milford affecting Jefferson County. Fox River Lower Near New Munster affecting Lake and Kenosha Counties. * WHAT...Moderate flooding is occurring and major flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until further notice. * IMPACTS...At 14.0 feet, There is flooding of the lower levels of homes in the Town of Wheatland and Village of Salem Lakes areas long Riverside Drive, Shorewood Drive, 101st Street and Shorewood Terrace. * ADDITIONAL DETAILS... - At 10:00 AM CDT Friday the stage was 13.9 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 10:00 AM CDT Friday was 13.9 feet. - Forecast...The river is expected to rise to a crest of 14.2 feet just after midnight tonight. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 14.5 feet on 04/20/2013. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov. The next statement will be issued this evening at 845 PM CDT.

Tornado Watch issued April 17 at 12:42PM CDT until April 17 at 8:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri April 17, 2026, 12:42 PM
Expires: Fri April 17, 2026, 8:00 PM

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 129 IN EFFECT UNTIL 8 PM CDT THIS EVENING FOR THE FOLLOWING AREAS IN WISCONSIN THIS WATCH INCLUDES 20 COUNTIES IN EAST CENTRAL WISCONSIN FOND DU LAC SHEBOYGAN IN SOUTH CENTRAL WISCONSIN COLUMBIA DANE GREEN GREEN LAKE IOWA LAFAYETTE MARQUETTE ROCK SAUK IN SOUTHEAST WISCONSIN DODGE JEFFERSON KENOSHA MILWAUKEE OZAUKEE RACINE WALWORTH WASHINGTON WAUKESHA THIS INCLUDES THE CITIES OF ARGYLE, BARABOO, BARNEVELD, BEAVER DAM, BELMONT, BELOIT, BENTON, BERLIN, BLANCHARDVILLE, BRODHEAD, BROOKFIELD, CEDARBURG, COLUMBUS, DARLINGTON, DELAVAN, DODGEVILLE, EAST TROY, ELKHORN, ENDEAVOR, FOND DU LAC, FORT ATKINSON, GERMANTOWN, GRAFTON, HARTFORD, HOWARDS GROVE, JANESVILLE, JEFFERSON, KENOSHA, LAKE GENEVA, LAKE WISCONSIN, LODI, MADISON, MARKESAN, MAYVILLE, MENOMONEE FALLS, MEQUON, MILWAUKEE, MINERAL POINT, MONROE, MONTELLO, MUSKEGO, NESHKORO, NEW BERLIN, OOSTBURG, OXFORD, PLYMOUTH, PORTAGE, PRAIRIE DU SAC, PRINCETON, RACINE, REEDSBURG, SAUK CITY, SHEBOYGAN FALLS, SHULLSBURG, WATERTOWN, WAUKESHA, WAUPUN, WEST BEND, WESTFIELD, AND WHITEWATER.

Flood Watch issued April 17 at 11:05AM CDT until April 18 at 7:00AM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri April 17, 2026, 11:05 AM
Expires: Fri April 17, 2026, 7:15 PM

* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of east central, south central, and southeast Wisconsin, including the following counties, in east central Wisconsin, Fond du Lac and Sheboygan. In south central Wisconsin, Dane, Green, Green Lake, Iowa, Lafayette, Marquette and Rock. In southeast Wisconsin, Dodge, Jefferson, Kenosha, Milwaukee, Ozaukee, Racine, Walworth, Washington and Waukesha. * WHEN...Through Saturday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Extensive street flooding and flooding of creeks and rivers are possible. Area creeks and streams are running high and could flood with more heavy rain. * ADDITIONAL DETAILS... - Flash flooding caused by excessive rainfall on a saturated is possible. An additional 0.50 to 1.25 inches of rain is expected, with locally higher amounts to 2.00 inches possible. - http://www.weather.gov/safety/flood

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

Flood Warning issued April 17 at 5:49AM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri April 17, 2026, 5:49 AM
Expires: Fri April 17, 2026, 6:00 PM

...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Root River At Franklin affecting Milwaukee County. Wisconsin River At Wisconsin Dells affecting Columbia and Sauk Counties. Rock River At Fort Atkinson affecting Jefferson County. Rock River At Afton affecting Winnebago and Rock Counties. Baraboo River Near Baraboo affecting Columbia and Sauk Counties. Rock River At Jefferson affecting Jefferson County. Rock River At Watertown affecting Jefferson County. ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County. Fox River Near Berlin affecting Green Lake County. Crawfish River At Milford affecting Jefferson County. Fox River Lower At Waukesha affecting Waukesha County. Fox River Lower Near New Munster affecting Kenosha and Lake Counties. Milwaukee River Near Cedarburg affecting Ozaukee County. Root River Canal At Raymond affecting Racine County. Sugar River At Brodhead affecting Winnebago, Rock and Green Counties. Wisconsin River At Portage affecting Columbia County. ...The Flood Warning is cancelled for the following rivers in Illinois...Wisconsin... Turtle Creek Near Clinton affecting Winnebago and Rock Counties. * WHAT...Moderate flooding is occurring and major flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until further notice. * IMPACTS...At 14.0 feet, There is flooding of the lower levels of homes in the Town of Wheatland and Village of Salem Lakes areas long Riverside Drive, Shorewood Drive, 101st Street and Shorewood Terrace. * ADDITIONAL DETAILS... - At 5:00 AM CDT Friday the stage was 13.8 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 5:00 AM CDT Friday was 13.8 feet. - Forecast...The river is expected to rise to a crest of 14.3 feet this evening. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 14.5 feet on 04/20/2013. - http://www.weather.gov/safety/flood

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Additional information is available at www.weather.gov. The next statement will be issued this morning at 700 AM CDT.

Flood Warning issued April 17 at 4:09PM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri April 17, 2026, 4:09 PM
Expires: Sat April 18, 2026, 4:15 AM

...The Flood Warning is extended for the following rivers in Wisconsin... Wisconsin River At Wisconsin Dells affecting Sauk and Columbia Counties. ...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Rock River At Fort Atkinson affecting Jefferson County. Rock River At Afton affecting Rock and Winnebago Counties. Baraboo River Near Baraboo affecting Sauk and Columbia Counties. Rock River At Jefferson affecting Jefferson County. Rock River At Watertown affecting Jefferson County. ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County. Fox River Near Berlin affecting Green Lake County. Crawfish River At Milford affecting Jefferson County. Fox River Lower At Waukesha affecting Waukesha County. Fox River Lower Near New Munster affecting Kenosha and Lake Counties. Milwaukee River Near Cedarburg affecting Ozaukee County. Root River Canal At Raymond affecting Racine County. Sugar River At Brodhead affecting Rock, Winnebago and Green Counties. Wisconsin River At Portage affecting Columbia County. ...The Flood Warning is cancelled for the following rivers in Wisconsin... Root River At Franklin affecting Milwaukee County. * WHAT...Moderate flooding is occurring and major flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until further notice. * IMPACTS...At 14.0 feet, There is flooding of the lower levels of homes in the Town of Wheatland and Village of Salem Lakes areas long Riverside Drive, Shorewood Drive, 101st Street and Shorewood Terrace. * ADDITIONAL DETAILS... - At 3:00 PM CDT Friday the stage was 14.0 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 3:00 PM CDT Friday was 14.0 feet. - Forecast...The river is expected to rise to a crest of 14.2 feet just after midnight tonight. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 14.5 feet on 04/20/2013. - http://www.weather.gov/safety/flood

To escape rising water, take the shortest path to higher ground. Even 6 inches of fast-moving flood water can knock you off your feet and a depth of 2 feet will float your car. Never try to walk, swim, or drive through such swift water. If you come upon flood waters, stop, turn around and go another way. Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Motorists should not attempt to drive around barricades or drive cars through flooded areas. Additional information is available at www.weather.gov. The next statement will be issued this afternoon at 515 PM CDT.