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 15 at 11:23PM CDT by NWS Milwaukee/Sullivan WI

Effective: Wed April 15, 2026, 11:23 PM
Expires: Thu April 16, 2026, 11:30 AM

...The Flood Warning is extended for the following rivers in Wisconsin... Milwaukee River Near Cedarburg affecting Ozaukee County. Wisconsin River At Portage affecting Columbia County. ...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Rock River At Watertown affecting Jefferson County. ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County. Fox River Lower Near New Munster affecting Lake and Kenosha Counties. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until further notice. * IMPACTS...At 13.5 feet, Floodwaters are into the lower levels of some homes in the Town of Wheatland and Village of Salem Lakes areas along Riverside Drive and Shorewood Drive. * ADDITIONAL DETAILS... - At 11:00 PM CDT Wednesday the stage was 11.4 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:00 PM CDT Wednesday was 11.4 feet. - Forecast...The river is expected to rise to a crest of 13.6 feet early Saturday morning. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 13.6 feet on 10/04/2019. - 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 Thursday morning at 1130 AM CDT.

Flood Watch issued April 16 at 1:08AM CDT until April 16 at 1:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Thu April 16, 2026, 1:08 AM
Expires: Thu April 16, 2026, 9:15 AM

...FLOOD WATCH EXTENDED IN SOUTHEASTERN AREAS... Additional shower and storm development is forecast through the overnight hours, with activity gradually tapering after sunrise this morning. Expecting that additional rainfall totals will remain at or below a half inch in many locations, though localized additional rainfall totals between 1-2 inches are possible in locations impacted by the heaviest thunderstorms and any repeated redevelopment. Given already saturated conditions, particularly over the southeast half of the region after last night's storms, this additional rainfall will lead to quick runoff and additional urban/small stream & potential flash flooding impacts. With thunderstorm potential most favored over far south-central and southeastern Wisconsin, the Flood Watch has thus been extended until 1 PM this afternoon from Rock, Jefferson, Washington, and all counties south and east to the Illinois border. Flood Watch remains in effect through 7 AM in areas further north and west. * WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of south central and southeast Wisconsin, including the following counties, in south central Wisconsin, Rock. In southeast Wisconsin, Jefferson, Kenosha, Milwaukee, Ozaukee, Racine, Walworth, Washington and Waukesha. * WHEN...Through this afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Flooding and flash flooding is possible from thunderstorms with heavy rain on saturated ground - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

Flood Warning issued April 16 at 3:50AM CDT by NWS Milwaukee/Sullivan WI

Effective: Thu April 16, 2026, 3:50 AM
Expires: Thu April 16, 2026, 4:00 PM

...The Flood Warning is extended for the following rivers in Wisconsin...Illinois... Rock River At Jefferson affecting Jefferson County. Root River At Franklin affecting Milwaukee County. Turtle Creek Near Clinton affecting Winnebago and Rock Counties. ...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Wisconsin River At Wisconsin Dells affecting Sauk and Columbia Counties. Rock River At Watertown affecting Jefferson County. ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County. Fox River Lower At Waukesha affecting Waukesha County. Fox River Lower Near New Munster affecting Lake and Kenosha Counties. Milwaukee River Near Cedarburg affecting Ozaukee County. Root River Canal At Raymond affecting Racine County. Sheboygan River At Sheboygan affecting Sheboygan County. Sugar River At Brodhead affecting Winnebago, Green and Rock Counties. Wisconsin River At Portage affecting Columbia County. * WHAT...Minor flooding is occurring and moderate flooding is forecast. * WHERE...Fox River Lower near New Munster. * WHEN...Until further notice. * IMPACTS...At 13.5 feet, Floodwaters are into the lower levels of some homes in the Town of Wheatland and Village of Salem Lakes areas along Riverside Drive and Shorewood Drive. * ADDITIONAL DETAILS... - At 3:00 AM CDT Thursday the stage was 11.6 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 3:00 AM CDT Thursday was 11.6 feet. - Forecast...The river is expected to rise to a crest of 13.6 feet early Saturday morning. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 13.6 feet on 10/04/2019. - 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. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov. The next statement will be issued this afternoon at 400 PM CDT.

Flood Watch issued April 16 at 6:52AM CDT until April 16 at 1:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Thu April 16, 2026, 6:52 AM
Expires: Thu April 16, 2026, 1:00 PM

* WHAT...Flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of south central and southeast Wisconsin, including the following counties, in south central Wisconsin, Rock. In southeast Wisconsin, Jefferson, Kenosha, Milwaukee, Ozaukee, Racine, Walworth, Washington and Waukesha. * WHEN...Until 1 PM CDT this afternoon. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Flooding and flash flooding is possible from thunderstorms with heavy rain on saturated ground - http://www.weather.gov/safety/flood

You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

Flood Warning issued April 16 at 12:00PM CDT by NWS Milwaukee/Sullivan WI

Effective: Thu April 16, 2026, 12:00 PM
Expires: Fri April 17, 2026, 12:00 AM

...The Flood Warning continues for the following river in Wisconsin...Illinois... Fox River Lower Near New Munster affecting Lake and Kenosha Counties. * WHAT...Minor flooding is occurring and moderate 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 11:00 AM CDT Thursday the stage was 12.3 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:00 AM CDT Thursday was 12.3 feet. - Forecast...The river is expected to rise to a crest of 13.9 feet early Saturday morning. - Flood stage is 11.0 feet. - Flood History...This crest compares to a previous crest of 13.7 feet on 05/24/2004. - 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 late tonight at midnight CDT.