NWS Small Craft Advisories Cover Sheboygan-Area Lake Waters Through Oct. 18 and Early Oct. 19
Sheboygan, WI — October 18, 2026
National Weather Service Small Craft Advisories remain in effect for two Lake Michigan nearshore areas by Sheboygan: the Sheboygan-to-Port Washington zone through 10 p.m. Sunday, October 18, and the Two Rivers-to-Sheboygan zone through 1 a.m. Monday, October 19. These alerts cover the named lake waters, not inland Sheboygan County.
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7-Day Weather Forecast
Separate advisories cover two nearshore areas
NWS Milwaukee/Sullivan issued the Sheboygan-to-Port Washington advisory at 2:43 p.m. CDT Saturday, October 17. It took effect at 4 p.m. Saturday and runs through 10 p.m. Sunday. The advisory cites southwest winds of 15 to 25 knots, gusts up to 30 knots, and waves of 3 to 5 feet Sunday into Sunday evening.
NWS Green Bay issued the separate Sturgeon Bay-to-Sheboygan advisory, including Two Rivers-to-Sheboygan waters, at 3:07 p.m. Saturday. It remains in effect until 1 a.m. Monday and cites southwest winds of 15 to 25 knots, gusts up to 30 knots, and waves of 3 to 6 feet.
A later NWS Green Bay nearshore forecast issued at 7:11 p.m. Saturday forecast waves of 4 to 7 feet Sunday in the Two Rivers-to-Sheboygan zone. NWS says conditions will be hazardous to small craft and advises inexperienced mariners, especially those operating smaller vessels, to avoid navigating in hazardous conditions. Check current marine alerts and forecasts before departure because conditions and advisories can change.
