NWS Marine Forecast



 Hazardous marine condition(s):
 Hazardous Weather Outlook
 Small Craft Advisory
   LSZ147-181615-  Sand Island to Bayfield WI-  359 AM CDT Thu Sep 18 2025    SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE FRIDAY NIGHT    TODAY  Northeast wind 15 to 20 knots. Gusts up to 20 knots  increasing to 25 knots in the late morning and afternoon. Slight  chance of rain showers through the day. Waves 3 to 5 feet.  TONIGHT  East wind 15 to 20 knots. Gusts up to 25 knots  decreasing to 20 knots after midnight. Slight chance of showers  and thunderstorms. Waves 2 to 4 feet.  FRIDAY  East wind 15 to 20 knots. Gusts up to 20 knots  increasing to 30 knots. Slight chance of thunderstorms in the  morning. Chance of rain showers through the day. Waves 4 to  6 feet. Waves occasionally to 7 feet.  FRIDAY NIGHT  East wind 15 to 20 knots with gusts to around  25 knots easing to 5 to 10 knots early in the morning. Chance of  rain showers and slight chance of thunderstorms. Waves 4 to  6 feet subsiding to 1 to 3 feet early in the morning. Waves  occasionally to 7 feet.    $$