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

Special Weather Statement issued March 10 at 6:07AM CDT by NWS Chicago IL

Effective: Tue March 10, 2026, 6:07 AM
Expires: Tue March 10, 2026, 9:00 AM

Pockets of fog, locally reducing visibilities under one half mile, will be possible early this morning. If traveling, be prepared for sudden changes in visibility. If you encounter fog, slow down, maintain a safe following distance, and use your low beam headlights.

Dense Fog Advisory issued March 10 at 2:41AM CDT until March 10 at 11:00AM CDT by NWS Chicago IL

Effective: Tue March 10, 2026, 2:41 AM
Expires: Tue March 10, 2026, 11:00 AM

* WHAT...Visibility less than one quarter mile in dense fog. * WHERE...Boone, De Kalb, Lee, Ogle, Winnebago, Kane, and McHenry Counties. * WHEN...Until 11 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

Dense Fog Advisory issued March 10 at 3:06AM CDT until March 10 at 11:00AM CDT by NWS Milwaukee/Sullivan WI

Effective: Tue March 10, 2026, 3:06 AM
Expires: Tue March 10, 2026, 11:00 AM

* WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Rock and Walworth Counties. * WHEN...Until 11 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

Hydrologic Outlook issued March 9 at 1:57PM CDT by NWS Chicago IL

Effective: Mon March 9, 2026, 1:57 PM
Expires: Tue March 10, 2026, 8:00 AM

ESFLOT Waves of showers and thunderstorms are likely late Tuesday into Wednesday. Some storms may produce rainfall rates in excess of 1 to 2 inches per hour, which could lead to localized flooding. The locations with the highest risk of flooding are somewhat uncertain. The highest probability of heavy rainfall is generally along and south of I-80, but drought conditions worsen toward Livingston, Ford, Iroquois, and Benton counties. Drought conditions increase the rainfall rates needed to cause flood impact. Closer to the Chicago Metropolitan Area, lower rainfall rates would be required to cause flood impacts, but the probability of heavy rainfall there is lower. This outlook means that elevated water levels and potential impacts are possible, but not yet certain. Persons should closely monitor forecasts including the possibility of flood watches, warnings, and advisories. This product will be updated by tomorrow morning.

Hydrologic Outlook issued March 10 at 5:49AM CDT by NWS Chicago IL

Effective: Tue March 10, 2026, 5:49 AM
Expires: Tue March 10, 2026, 3:00 PM

ESFLOT Waves of showers and thunderstorms are likely late today into Wednesday, and particularly this evening. Some storms may produce rainfall rates in excess of 1 to 2 inches per hour, which could lead to localized flooding. The locations with the highest risk of flooding remain somewhat uncertain. The highest probability of heavy rainfall is generally along and south of I-80, but drought conditions worsen toward Livingston, Ford, Iroquois, and Benton counties. Drought conditions increase the rainfall rates needed to cause flood impact. Closer to the Chicago Metropolitan Area, lower rainfall rates would be required to cause flood impacts. This outlook means that elevated water levels and potential impacts are possible, but not yet certain. Persons should closely monitor forecasts including the possibility of flood watches, warnings, and advisories.