571 FZUS53 KGRR 231711 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 111 PM EDT Sun Aug 23 2026 For waters within five nautical miles of shore on Lake Michigan LMZ849-240800- Pentwater to Manistee MI- 111 PM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .THROUGH EARLY EVENING...Northwest winds 20 to 25 knots. Mostly sunny. Waves 4 to 6 feet. .TONIGHT...North winds 15 to 25 knots. Partly cloudy. Waves 3 to 5 feet. .MONDAY...Northwest winds 10 to 20 knots. Sunny. Waves 3 to 5 feet. .MONDAY NIGHT...Northwest winds 5 to 15 knots backing south after midnight. Partly cloudy. Waves 1 to 3 feet. .TUESDAY...South winds 5 to 10 knots veering southwest 10 to 20 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...South winds 10 to 20 knots. Partly cloudy. Waves 2 to 4 feet building to 3 to 5 feet in the late evening and overnight. .WEDNESDAY...South winds to 30 knots. Partly sunny with a chance of showers and thunderstorms. Waves 4 to 6 feet. .THURSDAY...Northwest winds 10 to 20 knots. Mostly sunny. Waves 2 to 4 feet. .FRIDAY...North winds 10 to 20 knots. Sunny. Waves 1 to 3 feet. $$ LMZ848-240800- Whitehall to Pentwater MI- 111 PM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .THROUGH EARLY EVENING...Northwest winds to 30 knots. Mostly sunny. Waves 4 to 6 feet. .TONIGHT...North winds 15 to 25 knots. Partly cloudy. Waves 3 to 5 feet. .MONDAY...Northwest winds 15 to 25 knots. Sunny. Waves 2 to 4 feet. .MONDAY NIGHT...Northwest winds 10 to 15 knots backing southwest 5 to 10 knots after midnight. Partly cloudy. Waves 1 to 3 feet. .TUESDAY...Southwest winds 5 to 15 knots. Mostly sunny. Waves 1 to 2 feet. .TUESDAY NIGHT...South winds 15 to 25 knots. Partly cloudy. Waves 1 to 3 feet building to 3 to 5 feet in the late evening and overnight. .WEDNESDAY...South winds 20 to 25 knots. Partly sunny with rain showers likely and a chance of thunderstorms. Waves 4 to 6 feet. .THURSDAY...Northwest winds 15 to 20 knots. Mostly sunny. Waves 2 to 4 feet. .FRIDAY...North winds 10 to 20 knots. Sunny. Waves 1 to 3 feet. $$ LMZ847-240800- Grand Haven to Whitehall MI- 111 PM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .THROUGH EARLY EVENING...Northwest winds to 30 knots. Mostly sunny. Waves 5 to 7 feet. .TONIGHT...North winds 15 to 25 knots decreasing to 10 to 15 knots in the late evening and overnight. Mostly clear. Waves 3 to 5 feet subsiding to 2 to 4 feet in the late evening and overnight. .MONDAY...Northwest winds 15 to 25 knots. Sunny. Waves 2 to 4 feet. .MONDAY NIGHT...Northwest winds 10 to 20 knots decreasing to 5 to 10 knots in the late evening and early morning, then backing west after midnight. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and overnight. .TUESDAY...Southwest winds 5 to 15 knots. Mostly sunny. Waves around 1 foot. .TUESDAY NIGHT...South winds 15 to 25 knots. Partly cloudy. Waves 2 to 4 feet building to 3 to 5 feet after midnight. .WEDNESDAY...South winds 20 to 25 knots. Partly sunny with rain showers likely and a chance of thunderstorms. Waves 4 to 6 feet. .THURSDAY...Northwest winds 15 to 20 knots. Sunny. Waves 2 to 4 feet. .FRIDAY...North winds 10 to 15 knots backing northwest 15 to 20 knots early in the afternoon. Sunny. Waves 1 to 3 feet. $$ LMZ846-240800- Holland to Grand Haven MI- 111 PM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .THROUGH EARLY EVENING...Northwest winds to 30 knots. Mostly sunny. Waves 5 to 7 feet. .TONIGHT...North winds 15 to 25 knots decreasing to 10 to 15 knots in the late evening and overnight. Mostly clear. Waves 4 to 6 feet subsiding to 1 to 3 feet. .MONDAY...Northwest winds 10 to 20 knots. Sunny. Waves 1 to 3 feet building to 2 to 4 feet in the late morning and afternoon. .MONDAY NIGHT...Northwest winds 15 to 20 knots becoming west around 5 knots. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .TUESDAY...Southwest winds 5 to 15 knots. Mostly sunny. Waves around 1 foot. .TUESDAY NIGHT...South winds 10 to 20 knots. Partly cloudy. Waves 1 to 2 feet building to 2 to 4 feet after midnight. .WEDNESDAY...Southwest winds 20 to 25 knots. Partly sunny with a chance of showers and thunderstorms. Waves 3 to 5 feet. .THURSDAY...Northwest winds 15 to 20 knots. Mostly sunny. Waves 2 to 4 feet. .FRIDAY...North winds 10 to 15 knots backing northwest 15 to 20 knots early in the afternoon. Mostly sunny. Waves 1 to 3 feet. $$ LMZ845-240800- South Haven to Holland MI- 111 PM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .THROUGH EARLY EVENING...Northwest winds around 25 knots. Sunny. Waves 5 to 7 feet. .TONIGHT...North winds 15 to 25 knots decreasing to 10 to 15 knots in the late evening and overnight. Mostly clear. Waves 4 to 6 feet subsiding to 1 to 3 feet after midnight. .MONDAY...Northwest winds 10 to 20 knots. Sunny. Waves 1 to 3 feet building to 2 to 4 feet in the late morning and afternoon. .MONDAY NIGHT...Northwest winds 10 to 15 knots backing west around 5 knots after midnight. Mostly clear. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .TUESDAY...Southwest winds 5 to 10 knots. Sunny. Waves 1 foot or less. .TUESDAY NIGHT...South winds 10 to 20 knots. Partly cloudy. Waves 1 to 3 feet. .WEDNESDAY...Southwest winds 15 to 20 knots. Partly sunny with a chance of showers and thunderstorms. Waves 3 to 5 feet. .THURSDAY...Northwest winds 15 to 20 knots. Sunny. Waves 2 to 4 feet. .FRIDAY...North winds 10 to 15 knots. Mostly sunny. Waves 1 to 2 feet. $$ LMZ844-240800- St Joseph to South Haven MI- 111 PM EDT Sun Aug 23 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING... .THROUGH EARLY EVENING...Northwest winds 20 to 25 knots. Sunny. Waves 5 to 7 feet. .TONIGHT...North winds 10 to 20 knots veering northeast 5 to 10 knots after midnight. Mostly clear. Waves 4 to 6 feet subsiding to 2 to 4 feet after midnight. .MONDAY...North winds 5 to 15 knots backing northwest in the late morning and afternoon. Sunny. Waves 1 to 3 feet building to 2 to 4 feet early in the afternoon. .MONDAY NIGHT...Northwest winds 5 to 15 knots backing west around 5 knots after midnight. Mostly clear. Waves 2 to 4 feet. .TUESDAY...Southwest winds 5 to 10 knots veering west early in the afternoon. Sunny. Waves 1 foot or less. .TUESDAY NIGHT...South winds 5 to 15 knots. Partly cloudy. Waves around 1 foot. .WEDNESDAY...Southwest winds 15 to 20 knots. Partly sunny. Waves 1 to 3 feet. .THURSDAY...Northwest winds 10 to 15 knots. Sunny. Waves 2 to 4 feet. .FRIDAY...North winds 10 to 15 knots. Mostly sunny. Waves 1 to 3 feet. $$  781 FZUS53 KGRB 231714 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 1214 PM CDT Sun Aug 23 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-232200- 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- 1214 PM CDT Sun Aug 23 2026 .THIS AFTERNOON...N wind 15 to 25 kts decreasing to 10 to 15 kts early in the afternoon. Waves 2 to 4 ft. Partly cloudy. .TONIGHT...N wind 10 to 15 kts. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Clear. .MONDAY...NW wind 10 to 15 kts veering N 5 to 10 kts early in the afternoon. Waves 2 ft or less. Sunny. .MONDAY NIGHT...E wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy. $$ LMZ541>543-232200- Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 1214 PM CDT Sun Aug 23 2026 .THIS AFTERNOON...N wind 15 to 25 kts. Waves 1 to 3 ft. A chance of sprinkles late in the morning. .TONIGHT...N wind 10 to 20 kts. Waves 1 to 3 ft. Clear. .MONDAY...NW wind 10 to 15 kts veering N 5 to 10 kts early in the afternoon. Waves 2 ft or less. Mostly sunny. .MONDAY NIGHT...E wind 5 to 10 kts veering W after midnight. Waves 2 ft or less. Partly cloudy. $$ See Lake Michigan Open Lake Forecast for Tuesday through Thursday.  157 FZUS53 KDLH 231723 NSHDLH Nearshore Marine Forecast National Weather Service Duluth MN 1222 PM CDT Sun Aug 23 2026 For waters within five nautical miles of shore on Lake Superior. Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum. LSZ140-232200- Grand Portage to Grand Marais MN- 1222 PM CDT Sun Aug 23 2026 .REST OF TODAY...South wind 5 to 10 knots becoming southwest late. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 to 10 knots becoming northwest early in the morning. Mostly clear. Waves 1 foot or less. .MONDAY...North wind 5 to 10 knots becoming southwest in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Southwest wind 5 to 10 knots. Mostly cloudy. Waves 1 foot or less. $$ LSZ141-232200- Grand Marais to Taconite Harbor MN- 1222 PM CDT Sun Aug 23 2026 .REST OF TODAY...Southwest wind 5 to 10 knots. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots becoming north after midnight. Partly cloudy. Waves 1 foot or less. .MONDAY...North wind 5 knots early in the morning becoming variable 10 knots or less, then becoming southwest 5 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Variable winds 10 knots or less. Mostly cloudy. Waves 1 foot or less. $$ LSZ142-232200- Taconite Harbor to Silver Bay Harbor MN- 1222 PM CDT Sun Aug 23 2026 .REST OF TODAY...South wind 5 knots. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Variable winds 10 knots or less. Slight chance of rain showers after midnight. Waves 1 foot or less. $$ LSZ143-232200- Silver Bay Harbor to Two Harbors MN- 1222 PM CDT Sun Aug 23 2026 .REST OF TODAY...South wind 5 knots. Sunny. Waves 1 foot or less. .TONIGHT...North wind 5 knots in the evening becoming variable 10 knots or less. Partly cloudy. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming east 5 knots in the afternoon. Partly sunny. Waves 1 foot or less. .MONDAY NIGHT...Northeast wind 5 knots. Slight chance of rain showers after midnight. Waves 1 foot or less. $$ LSZ144-232200- Two Harbors to Duluth MN- 1222 PM CDT Sun Aug 23 2026 .REST OF TODAY...East wind 5 knots. Sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots in the evening becoming variable 10 knots or less. Partly cloudy. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming east 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Northeast wind 5 to 10 knots. Slight chance of rain showers after midnight. Waves 1 foot or less. $$ LSZ145-232200- Duluth MN to Port Wing WI- 1222 PM CDT Sun Aug 23 2026 .REST OF TODAY...East wind 5 to 10 knots. Sunny. Waves 1 foot or less. .TONIGHT...Northeast wind 5 knots in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming northeast 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 to 10 knots. Slight chance of rain showers after midnight. Waves 1 foot or less. $$ LSZ146-232200- Port Wing to Sand Island WI- 1222 PM CDT Sun Aug 23 2026 .REST OF TODAY...East wind 5 knots early in the afternoon becoming variable 10 knots or less. Sunny. Waves 1 foot or less. .TONIGHT...East wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming northeast 5 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 knots in the evening becoming variable 10 knots or less. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ147-232200- Sand Island to Bayfield WI- 1222 PM CDT Sun Aug 23 2026 .REST OF TODAY...East wind 5 knots becoming southeast late. Sunny. Waves 1 foot or less. .TONIGHT...South wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming northeast 5 knots early in the afternoon, then becoming east late in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Southeast wind 5 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ150-232200- Outer Apostle Islands Beyond 5 NM from Mainland- 1222 PM CDT Sun Aug 23 2026 .REST OF TODAY...East wind 5 knots becoming south late. Sunny. Waves 1 foot or less. .TONIGHT...Southwest wind 5 knots becoming northwest after midnight. Mostly clear. Waves 1 foot or less. .MONDAY...North wind 5 knots becoming southeast late in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...Southeast wind 5 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ121-232200- Chequamegon Bay-Bayfield to Oak Point WI- 1222 PM CDT Sun Aug 23 2026 .REST OF TODAY...East wind 5 to 10 knots. Sunny. Waves 1 foot or less. .TONIGHT...Southeast wind 5 knots early in the evening becoming variable 10 knots or less. Mostly clear. Waves 1 foot or less. .MONDAY...Variable winds 10 knots or less becoming east 5 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 knots in the evening becoming variable 10 knots or less, then becoming south 5 knots early in the morning. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. $$ LSZ148-232200- Oak Point to Saxon Harbor WI- 1222 PM CDT Sun Aug 23 2026 .REST OF TODAY...Northeast wind 5 to 10 knots becoming east late. Sunny. Waves 1 to 2 feet. .TONIGHT...Southeast wind 5 knots becoming southwest after midnight. Mostly clear. Waves 1 foot or less. .MONDAY...West wind 5 knots early in the morning becoming variable 10 knots or less, then becoming east 5 knots in the afternoon. Mostly sunny. Waves 1 foot or less. .MONDAY NIGHT...East wind 5 knots becoming south after midnight. Partly cloudy. Waves 1 foot or less. $$ Graphical marine forecasts are available online at: weather.gov/greatlakes WFO DLH  638 FZUS53 KGRB 231756 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 1256 PM CDT Sun Aug 23 2026 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-232200- Green Bay south of line from Cedar River to Rock Island Passage and north of a line from Oconto WI to Little Sturgeon Bay WI- Green Bay south of line from Oconto WI to Little Sturgeon Bay WI- 1256 PM CDT Sun Aug 23 2026 .THIS AFTERNOON...N wind 15 to 25 kts decreasing to 10 to 15 kts early in the afternoon. Waves 2 to 4 ft. Partly cloudy. .TONIGHT...N wind 10 to 15 kts. Waves 2 to 4 ft subsiding to 1 to 3 ft after midnight. Clear. .MONDAY...NW wind 10 to 15 kts veering N 5 to 10 kts early in the afternoon. Waves 2 ft or less. Sunny. .MONDAY NIGHT...E wind 5 to 10 kts. Waves 2 ft or less. Partly cloudy. $$ LMZ541>543-232200- Rock Island Passage to Sturgeon Bay WI- Sturgeon Bay to Two Rivers WI-Two Rivers to Sheboygan WI- 1256 PM CDT Sun Aug 23 2026 .THIS AFTERNOON...N wind 15 to 25 kts. Waves 1 to 3 ft. A chance of sprinkles late in the morning. .TONIGHT...N wind 10 to 20 kts. Waves 1 to 3 ft. Clear. .MONDAY...NW wind 10 to 15 kts veering N 5 to 10 kts early in the afternoon. Waves 2 ft or less. Mostly sunny. .MONDAY NIGHT...E wind 5 to 10 kts veering W after midnight. Waves 2 ft or less. Partly cloudy. $$ See Lake Michigan Open Lake Forecast for Tuesday through Thursday.