Small Craft Advisory Near Sheboygan Extended Through 1 p.m. Thursday, September 24
Sheboygan, WI — September 23, 2026
The National Weather Service Milwaukee/Sullivan office updated a Small Craft Advisory at 8:58 a.m. CDT Wednesday, September 23, for Lake Michigan nearshore waters from Sheboygan to Winthrop Harbor, including the Sheboygan-to-Port Washington zone. The advisory remains in effect through 1 p.m. CDT Thursday, September 24.
The update affects boaters, anglers, charter operators and other small-vessel users along the listed nearshore marine zones.
What the advisory means through Thursday afternoon
East to northeast winds of 10 to 20 knots and waves of 3 to 5 feet are expected in the affected waters. The National Weather Service advises inexperienced mariners and operators of smaller vessels to avoid navigating during hazardous conditions.
Small-vessel users planning to leave from Sheboygan-area launches or marinas should consider delaying trips through early Thursday afternoon. Anyone traveling on the lake should check the latest marine conditions and advisory information before departure because wind and wave conditions can change.
This is a material timing change from Sheboygan Life’s September 22 report, which listed the advisory as ending at 7 p.m. Wednesday, September 23. The updated expiration is 1 p.m. CDT Thursday, September 24.
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The advisory applies to Lake Michigan nearshore waters and does not automatically apply to every beach or inland location in Sheboygan County. Check the latest National Weather Service marine update before heading onto the lake.
