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 24 at 4:52AM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri April 24, 2026, 4:52 AM
Expires: Fri April 24, 2026, 5:00 PM

...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Fox River At Princeton affecting Green Lake County. Fox River Near Berlin affecting Green Lake County. Fox River Lower Near New Munster affecting Kenosha and Lake Counties. * WHAT...Moderate 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 4:00 AM CDT Friday the stage was 13.7 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 4:00 AM CDT Friday was 14.0 feet. - Forecast...The river is expected to fall to 11.3 feet Thursday evening. - 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

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 500 PM CDT.

Flood Warning issued April 24 at 11:22AM CDT by NWS Milwaukee/Sullivan WI

Effective: Fri April 24, 2026, 11:22 AM
Expires: Fri April 24, 2026, 11:30 PM

...The Flood Warning continues for the following rivers in Wisconsin...Illinois... Rock River At Fort Atkinson affecting Jefferson County. Rock River At Watertown affecting Jefferson County. Rock River At Newville affecting Rock County. Rock River Near Lake Koshkonong affecting Rock and Jefferson Counties. Rock River At Afton affecting Rock and Winnebago Counties. ROCK RIVER near LEBANON-3 E-HWY MM BRIDGE affecting Dodge County. Fox River Lower Near New Munster affecting Kenosha and Lake Counties. ...The Flood Warning is extended for the following rivers in Wisconsin... Rock River At Jefferson affecting Jefferson County. Fox River At Princeton affecting Green Lake County. Fox River Near Berlin affecting Green Lake County. Crawfish River At Milford affecting Jefferson County. * WHAT...Moderate 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 AM CDT Friday the stage was 13.6 feet. - Bankfull stage is 10.0 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 11:00 AM CDT Friday was 14.0 feet. - Forecast...The river is expected to fall to 11.1 feet Friday, May 01. - 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. 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. 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 this evening at 1130 PM CDT.

Flood Warning issued April 23 at 1:53PM CDT until April 30 at 1:00PM CDT by NWS Chicago IL

Effective: Thu April 23, 2026, 1:53 PM
Expires: Thu April 30, 2026, 1:00 PM

* WHAT...Flooding caused by excessive rainfall continues. * WHERE...A portion of northeast Illinois, including the following counties, Lake IL and McHenry. * WHEN...Until further notice. * IMPACTS...Numerous roads, yards, structures, and areas of park land are flooding along the Fox River Chain of Lakes. Flooding will continue through at least next week. * ADDITIONAL DETAILS... - At 138 PM CDT, River gauges along the Fox River Chain of Lakes indicate that water levels have remained nearly steady for the past 24 hours and are likely at a crest in major flood stage. The latest forecast from the Illinois Department of Natural Resources indicates that water levels should begin to slowly fall by Friday. - Some locations that will experience flooding include areas along the Fox River Chain of Lakes, including Nippersink Lake, Fox Lake, Pistakee Lake, Petite Lake, Lake Marie, Channel Lake, and Lake Catherine. - http://www.weather.gov/safety/flood

Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

Flood Warning issued April 23 at 9:15PM CDT by NWS Chicago IL

Effective: Thu April 23, 2026, 9:15 PM
Expires: Fri April 24, 2026, 3:15 PM

...The Flood Warning continues for the following rivers in Illinois... Fox River at Montgomery affecting Kendall and Kane Counties. Fox River at Algonquin Lock & Dam tailwater affecting McHenry, Kane and Lake IL Counties. * WHAT...Major flooding is occurring and is forecasted to continue. * 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 12.0 feet, structures threatened along River Street, Johnson Street, and Maiden Lane in East Dundee. North Harrison Street threatened near Riverside Park in Algonquin. Washington Street threatened in Carpentersville. Water Street, Edwards Avenue, and Elgin Avenue threatened in East Dundee. Bayview Road threatened in Elgin. Low-lying areas of Festival Park are threatened in Elgin. * ADDITIONAL DETAILS... - At 8:30 PM CDT Thursday, the stage was 12.0 feet. - Forecast...The river is expected to remain nearly steady around its crest of 12.0 feet through Friday. It will then begin a very slow fall but will remain above flood stage through at least 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 Friday afternoon.

Flood Warning issued April 23 at 9:10PM CDT until April 25 at 1:00PM CDT by NWS Chicago IL

Effective: Thu April 23, 2026, 9:10 PM
Expires: Fri April 24, 2026, 3:15 PM

...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River at Lincolnshire affecting Cook and Lake IL Counties. Des Plaines River near Gurnee affecting Lake IL County. ...The Flood Warning continues for the following rivers in Illinois... Des Plaines River near Des Plaines affecting Cook County. Des Plaines River near Russell affecting Lake IL County. * WHAT...Minor flooding is occurring and is forecasted to continue. * WHERE...Des Plaines River from Townline Road in Libertyville downstream to Palatine Road in Prospect Heights, including the Lincolnshire gauge. * WHEN...Until early Saturday afternoon. * IMPACTS...At 14.0 feet, residences threatened east of the river just south of IL-22 (Half-Day Road). Lincolnshire Drive threatened at Wiltshire Lane. * ADDITIONAL DETAILS... - At 7:45 PM CDT Thursday, the stage was 13.7 feet. - Forecast...The river is expected to fall below flood stage sometime Saturday 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 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 afternoon.