FZUS53 KAPX 190523 NSHAPX Nearshore Marine Forecast National Weather Service Gaylord MI 123 AM EDT Sun Apr 19 2026 For waters within five nautical miles of shore on Lakes Huron... Michigan and 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. LSZ321-191930- Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI- 123 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...Northwest wind 15 to 25 knots. Chance of snow showers early in the morning, then slight chance of snow showers in the afternoon. Waves 5 to 8 feet. Waves occasionally around 10 feet. .TONIGHT...Northwest wind 15 to 20 knots. Mostly cloudy. Waves 5 to 8 feet. .MONDAY...West wind 5 to 10 knots. Partly sunny. Waves 2 to 3 feet. .MONDAY NIGHT...South wind 10 to 20 knots. Mostly cloudy. Waves 2 to 3 feet. Wave heights are valid for ice free areas. See the open lakes forecast for days 3 through 5. $$ LSZ322-191930- St. Marys River Point Iroquois to E. Potagannissing Bay- 123 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...Northwest wind 15 to 25 knots. Slight chance of snow showers. .TONIGHT...Northwest wind 15 to 20 knots. Partly cloudy. .MONDAY...West wind 5 to 10 knots. Mostly sunny. .MONDAY NIGHT...South wind 10 to 15 knots. Mostly cloudy. See the open lakes forecast for days 3 through 5. $$ LMZ341-191930- Seul Choix Point to 5NM West of Mackinac Bridge- 123 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...Northwest wind 15 to 25 knots. Slight chance of snow showers in the afternoon. Waves 2 to 3 feet building to 2 to 4 feet in the morning. .TONIGHT...Northwest wind 15 to 20 knots. Slight chance of snow showers. Waves 2 to 3 feet. .MONDAY...Southwest wind 15 to 20 knots. Mostly sunny. Waves 2 to 3 feet. .MONDAY NIGHT...South wind 15 to 25 knots. Mostly cloudy. Waves 4 to 7 feet. See the open lakes forecast for days 3 through 5. $$ LMZ342-191930- Norwood MI to 5NM West of Mackinac Bridge including Little Traverse Bay- 123 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...Northwest wind 15 to 25 knots. Slight chance of snow showers early in the morning. Waves 2 to 4 feet. .TONIGHT...Northwest wind 15 to 20 knots, gusts to 25 knots. Partly cloudy. Waves 2 to 4 feet. .MONDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 15 to 20 knots. Mostly cloudy. Waves 3 to 5 feet. See the open lakes forecast for days 3 through 5. $$ LMZ323-191930- Grand Traverse Bay south of a line Grand Traverse Light to Norwood MI- 123 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...Northwest wind 15 to 25 knots decreasing to 10 to 20 knots in the afternoon. Slight chance of snow showers early in the morning. Waves 2 to 3 feet building to 2 to 4 feet in the morning. .TONIGHT...North wind 15 to 20 knots, gusts to 25 knots. Partly cloudy. Waves 2 to 4 feet. .MONDAY...West wind 5 to 10 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 15 to 20 knots. Mostly cloudy. Waves 2 to 4 feet. See the open lakes forecast for days 3 through 5. $$ LMZ344-191930- Sleeping Bear Point to Grand Traverse Light MI- 123 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...Northwest wind 15 to 20 knots. Partly sunny early in the morning then becoming mostly sunny. Waves 2 to 3 feet building to 2 to 4 feet in the morning. .TONIGHT...North wind 15 to 20 knots, gusts to 25 knots. Partly cloudy. Waves 2 to 4 feet. .MONDAY...West wind 5 to 10 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 10 to 20 knots. Mostly cloudy. Waves 2 to 4 feet. See the open lakes forecast for days 3 through 5. $$ LMZ345-191930- Point Betsie to Sleeping Bear Point MI- 123 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...Northwest wind 15 to 20 knots. Partly sunny early in the morning then becoming mostly sunny. Waves 2 to 4 feet. .TONIGHT...North wind 10 to 15 knots. Partly cloudy. Waves 2 to 3 feet. .MONDAY...Southwest wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 15 to 20 knots. Mostly cloudy. Waves 3 to 5 feet. See the open lakes forecast for days 3 through 5. $$ LMZ346-191930- Manistee to Point Betsie MI- 123 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...Northwest wind 15 to 20 knots. Slight chance of snow showers in the morning. Waves 2 to 3 feet. .TONIGHT...North wind 10 to 15 knots. Partly cloudy. Waves 2 to 3 feet. .MONDAY...Southwest wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 10 to 20 knots. Mostly cloudy. Waves 4 to 6 feet. See the open lakes forecast for days 3 through 5. $$ LHZ345-191930- Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island- 123 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...Northwest wind 15 to 20 knots, gusts to 25 knots. Slight chance of snow showers early in the morning. Waves 2 to 3 feet building to 2 to 4 feet in the morning. .TONIGHT...Northwest wind 15 to 20 knots. Partly cloudy. Waves 2 to 3 feet. .MONDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 10 to 15 knots. Mostly cloudy. Waves 2 to 3 feet. Wave heights are valid for ice free areas. See the open lakes forecast for days 3 through 5. $$ LHZ346-191930- St Ignace to False Detour Channel- 123 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...Northwest wind 15 to 25 knots. Slight chance of snow showers early in the morning. Waves 2 to 4 feet. .TONIGHT...Northwest wind 15 to 25 knots. Partly cloudy. Waves 2 to 4 feet. .MONDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 10 to 20 knots. Mostly cloudy. Waves 3 to 5 feet. See the open lakes forecast for days 3 through 5. $$ LHZ347-191930- 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island- 123 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...Northwest wind 15 to 25 knots. Slight chance of snow showers early in the morning. Waves 2 to 3 feet building to 4 to 7 feet. .TONIGHT...Northwest wind 15 to 25 knots. Partly cloudy. Waves 4 to 7 feet. .MONDAY...Northwest wind 5 to 10 knots. Mostly sunny. Waves 2 to 3 feet. .MONDAY NIGHT...South wind 10 to 15 knots. Mostly cloudy. Waves 2 to 3 feet. See the open lakes forecast for days 3 through 5. $$ LHZ348-191930- Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary- 123 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...West wind 10 to 15 knots becoming 10 to 20 knots in the morning, then becoming northwest 15 to 25 knots in the afternoon. Chance of snow showers in the morning. Slight chance of snow showers in the afternoon. Waves 2 feet or less building to 4 to 7 feet. Waves occasionally around 8 feet. .TONIGHT...Northwest wind 15 to 25 knots. Partly cloudy. Waves 5 to 8 feet. .MONDAY...North wind 10 to 15 knots. Mostly sunny. Waves 2 to 3 feet. .MONDAY NIGHT...South wind 10 to 20 knots. Mostly cloudy. Waves 4 to 6 feet. See the open lakes forecast for days 3 through 5. $$ LHZ349-191930- Sturgeon Pt to Alabaster MI- 123 AM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TODAY...Southwest wind 10 to 15 knots becoming northwest 10 to 20 knots in the afternoon. Slight chance of showers in the morning. Chance of snow showers in the morning. Chance of showers in the afternoon. Waves 2 feet or less building to 2 to 3 feet in the afternoon. .TONIGHT...Northwest wind 10 to 20 knots. Partly cloudy. Waves 2 to 4 feet. .MONDAY...Southwest wind 5 to 10 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 10 to 20 knots. Mostly cloudy. Waves 3 to 5 feet. See the open lakes forecast for days 3 through 5. $$ JLD