Milwaukee, WI – Mariners navigating Lake Michigan face dangerous conditions through early Wednesday afternoon as dense fog blankets nearshore and offshore waters from Wisconsin to Indiana. Visibility has dropped below 1 nautical mile across wide areas, with some patches near 1/4 NM, complicating navigation from Sturgeon Bay to Michigan City.
According to the National Weather Service in Milwaukee, the Dense Fog Advisory remains in effect until 1 p.m. CDT Wednesday. Affected areas include nearshore waters from Sheboygan, WI, to Winthrop Harbor, IL, and open waters south of Two Rivers, WI, to Manistee, MI. The advisory also covers Illinois and Indiana nearshore zones, including key ports from Chicago to Gary and Michigan City.
Boaters are urged to delay travel if possible. If navigation is necessary, proceed slowly, use fog signals, ensure running lights are operational, and rely on radar and compass navigation. Reduced visibility poses significant hazards, especially near busy ports and shipping lanes.
Conditions are expected to improve by early Wednesday afternoon, but mariners should monitor for updated advisories. Warnings remain in effect until visibility clears across the region.


