449 FZUS53 KGRB 171206 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 706 AM CDT Fri Apr 17 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-171600- Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 706 AM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM CDT THIS AFTERNOON THROUGH LATE TONIGHT... .TODAY...S wind 10 to 15 kts increasing to 15 to 25 kts early in the afternoon. Waves 2 ft or less building to 2 to 4 ft in the afternoon. Areas of dense fog. a chance of showers and thunderstorms in the afternoon. .TONIGHT...S wind 15 to 25 kts veering W 10 to 20 kts after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Rain showers and a chance of thunderstorms in the evening, then a slight chance of showers after midnight. .SATURDAY...W wind 15 to 25 kts. Waves 1 to 3 ft. Partly cloudy. A Small Craft Advisory may be needed. .SATURDAY NIGHT...NW wind 10 to 20 kts. Waves 1 to 3 ft. Partly cloudy. $$ LMZ541-171600- Rock Island Passage to Sturgeon Bay WI- 706 AM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM CDT THIS AFTERNOON THROUGH SATURDAY MORNING... .TODAY...S wind 10 to 15 kts increasing to 15 to 25 kts early in the afternoon. Waves 1 to 3 ft building to 3 to 5 ft in the afternoon. Areas of dense fog. .TONIGHT...S wind 15 to 25 kts veering W after midnight. Waves 4 to 7 ft. Rain showers and a chance of thunderstorms in the evening, then a chance of showers after midnight. .SATURDAY...W wind 10 to 15 kts. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. Partly cloudy. .SATURDAY NIGHT...NW wind 10 to 20 kts. Waves 1 to 3 ft. Partly cloudy. $$ LMZ542-543-171600- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 706 AM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM CDT THIS AFTERNOON THROUGH SATURDAY MORNING... .TODAY...S wind 10 to 15 kts increasing to 15 to 25 kts in the late morning and afternoon. Waves 1 to 3 ft building to 4 to 7 ft in the afternoon. Areas of dense fog. a slight chance of showers and thunderstorms in the afternoon. .TONIGHT...S wind to 30 kts veering W 15 to 25 kts after midnight. Waves 5 to 8 ft subsiding to 4 to 7 ft after midnight. Rain showers and a chance of thunderstorms in the evening, then a chance of showers after midnight. .SATURDAY...W wind 15 to 25 kts. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. Partly cloudy. .SATURDAY NIGHT...W wind 15 to 25 kts decreasing to 10 to 15 kts in the late evening and overnight. Waves 1 to 3 ft. Mostly clear. A Small Craft Advisory may be needed. $$ See Lake Michigan Open Lake Forecast for Sunday through Tuesday. Wave height forecast is for ice free areas.  943 FZUS53 KMKX 171211 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 711 AM CDT Fri Apr 17 2026 For waters within five nautical miles of shore on Lake Michigan LMZ643-171600- Sheboygan to Port Washington WI- 711 AM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH SATURDAY EVENING... .TODAY...South wind 10 to 15 knots with gusts to around 20 knots rising to 15 to 20 knots with gusts to around 25 knots in the afternoon. Widespread dense fog in the morning, then areas of dense fog early in the afternoon. chance of showers and slight chance of thunderstorms late in the afternoon. Waves 1 to 2 feet building to 3 to 5 feet in the afternoon. .TONIGHT...South wind 15 to 25 knots becoming 15 to 20 knots late in the evening, then veering southwest after midnight veering west early in the morning. Patchy fog through the night. showers with thunderstorms likely through around midnight. Chance of showers and thunderstorms after midnight. Waves 5 to 7 feet subsiding to 4 to 6 feet after midnight, then subsiding to 3 to 5 feet early in the morning. .SATURDAY...Northwest wind 10 to 20 knots backing west late in the afternoon. Gusts up to 25 knots. Partly sunny in the morning then clearing. Waves 3 to 4 feet subsiding to 1 to 3 feet late in the afternoon. .SATURDAY NIGHT...West wind 15 to 25 knots becoming 15 to 20 knots late in the evening, then becoming west 15 to 20 knots after midnight. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight. $$ LMZ644-171600- Port Washington to North Point Light WI- 711 AM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH SATURDAY EVENING... .TODAY...Southeast wind 5 to 15 knots becoming south 15 to 20 knots with gusts to around 25 knots. Widespread dense fog in the morning, then patchy dense fog early in the afternoon. slight chance of showers and thunderstorms late in the afternoon. Waves around 1 foot building to 3 to 5 feet in the afternoon. .TONIGHT...South wind 15 to 20 knots veering west early in the morning. Gusts up to 25 knots. Patchy fog through the night. showers with thunderstorms likely through around midnight. Chance of showers and thunderstorms after midnight. Waves 4 to 6 feet subsiding to 3 to 5 feet after midnight. .SATURDAY...Northwest wind 10 to 20 knots backing west early in the afternoon, then becoming 15 to 20 knots late in the afternoon. Gusts up to 25 knots. Partly sunny in the morning then clearing. Waves 2 to 4 feet subsiding to 1 to 3 feet early in the afternoon, then building to 2 to 4 feet late in the afternoon. .SATURDAY NIGHT...West wind 15 to 25 knots becoming 15 to 20 knots after midnight. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight. $$ LMZ645-171600- North Point Light to Wind Point WI- 711 AM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH SATURDAY EVENING... .TODAY...Southeast wind 5 to 15 knots becoming 10 to 15 knots late in the morning, then rising to 15 to 20 knots with gusts to around 25 knots in the afternoon. Widespread dense fog in the morning, then patchy dense fog early in the afternoon. slight chance of showers and thunderstorms late in the afternoon. Waves around 1 foot building to 3 to 4 feet in the afternoon. .TONIGHT...South wind 15 to 20 knots veering west early in the morning. Gusts up to 25 knots. Patchy fog through the night. showers with thunderstorms likely through around midnight. Chance of showers and thunderstorms after midnight. Waves 3 to 5 feet subsiding to 3 to 4 feet in the late evening and overnight. .SATURDAY...Northwest wind 10 to 20 knots becoming 15 to 20 knots late in the morning, then backing west in the afternoon. Gusts up to 25 knots. Partly sunny in the morning then clearing. Waves 2 to 4 feet subsiding to 1 to 2 feet late in the afternoon. .SATURDAY NIGHT...West wind 15 to 20 knots. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight. $$ LMZ646-171600- Wind Point WI to Winthrop Harbor IL- 711 AM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 1 PM CDT THIS AFTERNOON THROUGH SATURDAY EVENING... .TODAY...Southeast wind 5 to 10 knots rising to 15 to 20 knots with gusts to around 25 knots. Widespread dense fog in the morning, then patchy dense fog early in the afternoon. Waves around 1 foot building to 3 to 4 feet late in the afternoon. .TONIGHT...South wind 15 to 20 knots veering west early in the morning. Gusts up to 25 knots. Patchy fog through the night. showers with thunderstorms likely through around midnight. Chance of showers and thunderstorms after midnight. Waves 4 to 6 feet subsiding to 3 to 4 feet in the late evening and overnight. .SATURDAY...Northwest wind 15 to 20 knots backing west in the afternoon. Gusts up to 25 knots. Partly sunny in the morning then clearing. Waves 2 to 4 feet subsiding to 1 to 2 feet in the afternoon. .SATURDAY NIGHT...West wind 15 to 20 knots easing to 10 to 15 knots after midnight, then becoming west 10 to 15 knots early in the morning. Mostly clear. Waves 1 to 2 feet. $$ See Lake Michigan Open Waters Forecast for Sunday through Tuesday.  616 FZUS53 KGRB 171256 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 756 AM CDT Fri Apr 17 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-171600- Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 756 AM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM CDT THIS AFTERNOON THROUGH LATE TONIGHT... .TODAY...S wind 10 to 15 kts increasing to 15 to 25 kts early in the afternoon. Waves 2 ft or less building to 2 to 4 ft in the afternoon. Areas of dense fog. a chance of showers and thunderstorms in the afternoon. .TONIGHT...S wind 15 to 25 kts veering W 10 to 20 kts after midnight. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Rain showers and a chance of thunderstorms in the evening, then a slight chance of showers after midnight. .SATURDAY...W wind 15 to 25 kts. Waves 1 to 3 ft. Partly cloudy. A Small Craft Advisory may be needed. .SATURDAY NIGHT...NW wind 10 to 20 kts. Waves 1 to 3 ft. Partly cloudy. $$ LMZ541-171600- Rock Island Passage to Sturgeon Bay WI- 756 AM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM CDT THIS AFTERNOON THROUGH SATURDAY MORNING... .TODAY...S wind 10 to 15 kts increasing to 15 to 25 kts early in the afternoon. Waves 1 to 3 ft building to 3 to 5 ft in the afternoon. Areas of dense fog. .TONIGHT...S wind 15 to 25 kts veering W after midnight. Waves 4 to 7 ft. Rain showers and a chance of thunderstorms in the evening, then a chance of showers after midnight. .SATURDAY...W wind 10 to 15 kts. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. Partly cloudy. .SATURDAY NIGHT...NW wind 10 to 20 kts. Waves 1 to 3 ft. Partly cloudy. $$ LMZ542-543-171600- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 756 AM CDT Fri Apr 17 2026 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING... ...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM CDT THIS AFTERNOON THROUGH SATURDAY MORNING... .TODAY...S wind 10 to 15 kts increasing to 15 to 25 kts in the late morning and afternoon. Waves 1 to 3 ft building to 4 to 7 ft in the afternoon. Areas of dense fog. a slight chance of showers and thunderstorms in the afternoon. .TONIGHT...S wind to 30 kts veering W 15 to 25 kts after midnight. Waves 5 to 8 ft subsiding to 4 to 7 ft after midnight. Rain showers and a chance of thunderstorms in the evening, then a chance of showers after midnight. .SATURDAY...W wind 15 to 25 kts. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. Partly cloudy. .SATURDAY NIGHT...W wind 15 to 25 kts decreasing to 10 to 15 kts in the late evening and overnight. Waves 1 to 3 ft. Mostly clear. A Small Craft Advisory may be needed. $$ See Lake Michigan Open Lake Forecast for Sunday through Tuesday. Wave height forecast is for ice free areas.