FZUS53 KAPX 180554 NSHAPX Nearshore Marine Forecast National Weather Service Gaylord MI 154 AM EDT Sat Apr 18 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. LSZ321-182200- Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI- 154 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...Northwest wind 15 to 25 knots. Rain showers early in the morning, then showers likely in the morning. Slight chance of snow showers in the afternoon. Waves 2 to 3 feet building to 5 to 8 feet in the morning. Waves occasionally around 11 feet. .TONIGHT...West wind 10 to 20 knots, gusts to 25 knots. Chance of snow showers. Waves 7 to 10 feet. .SUNDAY...Northwest wind 15 to 25 knots. Mostly cloudy. Waves 6 to 9 feet. .SUNDAY NIGHT...Northwest wind 15 to 25 knots. Partly cloudy. Waves 5 to 8 feet. Wave heights are valid for ice free areas. See the open lakes forecast for days 3 through 5. $$ LSZ322-182200- St. Marys River Point Iroquois to E. Potagannissing Bay- 154 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...Northwest wind 15 to 25 knots. Slight chance of thunderstorms early in the morning. Rain showers early in the morning. Slight chance of snow showers in the afternoon. .TONIGHT...West wind 10 to 20 knots. Slight chance of snow showers. .SUNDAY...Northwest wind 10 to 20 knots, gusts to 25 knots. Partly sunny. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Partly cloudy. Winds higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LMZ341-182200- Seul Choix Point to 5NM West of Mackinac Bridge- 154 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...Northwest wind 15 to 25 knots becoming west 10 to 15 knots in the afternoon. Rain showers and slight chance of thunderstorms early in the morning, then chance of showers in the morning. Slight chance of snow showers in the afternoon. Waves 2 to 4 feet. .TONIGHT...Northwest wind 10 to 15 knots. Slight chance of snow showers. Waves 2 to 3 feet. .SUNDAY...Northwest wind 10 to 20 knots, gusts to 25 knots. Partly sunny. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Partly cloudy. Waves 2 to 3 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LMZ342-182200- Norwood MI to 5NM West of Mackinac Bridge including Little Traverse Bay- 154 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 15 to 20 knots decreasing to 5 to 15 knots early in the evening. Rain showers and slight chance of thunderstorms early in the morning, then chance of showers in the morning. Slight chance of rain and snow showers in the afternoon. Waves 2 to 3 feet building to 2 to 4 feet in the morning. .TONIGHT...Northwest wind 10 to 15 knots. Slight chance of snow showers. Waves 2 to 4 feet. .SUNDAY...Northwest wind 10 to 20 knots, gusts to 25 knots. Partly sunny. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Partly cloudy. Waves 2 to 4 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LMZ323-182200- Grand Traverse Bay south of a line Grand Traverse Light to Norwood MI- 154 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 15 to 20 knots decreasing to 5 to 15 knots early in the evening. Rain showers likely early in the morning, then chance of showers in the morning. Waves 2 feet or less building to 2 to 3 feet in the morning. .TONIGHT...West wind 10 to 15 knots. Mostly cloudy. Waves 2 to 3 feet. .SUNDAY...Northwest wind 10 to 20 knots, gusts to 25 knots. Partly sunny. Waves 2 to 3 feet. .SUNDAY NIGHT...Northwest wind 10 to 15 knots. Partly cloudy. Waves 2 to 3 feet. See the open lakes forecast for days 3 through 5. $$ LMZ344-182200- Sleeping Bear Point to Grand Traverse Light MI- 154 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...Northwest wind 15 to 20 knots becoming west in the afternoon. Rain showers early in the morning, then chance of showers in the morning. Waves 2 to 3 feet building to 2 to 4 feet in the morning. .TONIGHT...West wind 10 to 15 knots. Mostly cloudy. Waves 2 to 4 feet. .SUNDAY...Northwest wind 10 to 20 knots, gusts to 25 knots. Partly sunny. Waves 2 to 4 feet. .SUNDAY NIGHT...North wind 10 to 15 knots. Partly cloudy. Waves 2 to 3 feet. See the open lakes forecast for days 3 through 5. $$ LMZ345-182200- Point Betsie to Sleeping Bear Point MI- 154 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 15 to 20 knots. Rain showers likely early in the morning, then slight chance of showers in the morning. Waves 2 to 4 feet. .TONIGHT...West wind 10 to 15 knots. Mostly cloudy. Waves 2 to 4 feet. .SUNDAY...Northwest wind 10 to 15 knots, gusts to 25 knots. Partly sunny. Waves 2 to 4 feet. .SUNDAY NIGHT...North wind 5 to 10 knots. Mostly clear. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LMZ346-182200- Manistee to Point Betsie MI- 154 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 15 to 20 knots. Rain showers likely early in the morning, then slight chance of showers in the morning. Waves 2 to 4 feet. .TONIGHT...West wind 10 to 20 knots. Partly cloudy. Waves 3 to 5 feet. .SUNDAY...Northwest wind 10 to 15 knots, gusts to 25 knots. Mostly sunny. Waves 2 to 4 feet. .SUNDAY NIGHT...North wind 5 to 10 knots. Mostly clear. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LHZ345-182200- Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island- 154 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 15 to 20 knots decreasing to 10 to 15 knots in the afternoon. Rain showers and slight chance of thunderstorms early in the morning, then showers likely in the morning. Slight chance of rain and snow showers in the afternoon. Waves 2 to 3 feet. .TONIGHT...Northwest wind 10 to 15 knots. Slight chance of snow showers. Waves 2 to 3 feet. .SUNDAY...Northwest wind 10 to 20 knots, gusts to 25 knots. Partly sunny. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Partly cloudy. Waves 2 to 3 feet. Winds and waves higher in the vicinity of thunderstorms. Wave heights are valid for ice free areas. See the open lakes forecast for days 3 through 5. $$ LHZ346-182200- St Ignace to False Detour Channel- 154 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 15 to 20 knots. Rain showers and slight chance of thunderstorms early in the morning, then showers likely in the morning. Slight chance of rain and snow showers in the afternoon. Waves 4 to 6 feet subsiding to 3 to 5 feet in the afternoon. .TONIGHT...West wind 10 to 20 knots. Partly cloudy. Waves 2 to 4 feet. .SUNDAY...Northwest wind 10 to 20 knots, gusts to 25 knots. Partly sunny. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 15 to 25 knots. Partly cloudy. Waves 2 to 4 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LHZ347-182200- 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island- 154 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 15 to 20 knots. Rain showers and slight chance of thunderstorms early in the morning, then showers likely in the morning. Waves 4 to 6 feet. .TONIGHT...West wind 10 to 15 knots. Slight chance of snow showers. Waves 2 to 4 feet. .SUNDAY...Northwest wind 15 to 25 knots. Partly sunny. Waves 4 to 7 feet. .SUNDAY NIGHT...Northwest wind 15 to 25 knots. Partly cloudy. Waves 4 to 7 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LHZ348-182200- Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary- 154 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...South wind 15 to 25 knots becoming west 10 to 20 knots in the afternoon. Rain showers and a chance of thunderstorms early in the morning, then showers likely in the morning. Waves 4 to 7 feet subsiding to 4 to 6 feet in the afternoon. Waves occasionally around 9 feet. .TONIGHT...West wind 10 to 15 knots. Mostly cloudy. Waves 2 to 4 feet. .SUNDAY...Northwest wind 15 to 25 knots. Partly sunny. Waves 4 to 7 feet. .SUNDAY NIGHT...Northwest wind 15 to 25 knots. Partly cloudy. Waves 5 to 8 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LHZ349-182200- Sturgeon Pt to Alabaster MI- 154 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...South wind 15 to 25 knots decreasing to 10 to 20 knots in the morning, then becoming west 10 to 15 knots in the afternoon. Chance of thunderstorms early in the morning. Rain showers likely early in the morning. Waves 4 to 6 feet subsiding to 2 to 3 feet in the afternoon. .TONIGHT...West wind 10 to 15 knots. Partly cloudy. Waves 2 feet or less. .SUNDAY...Northwest wind 10 to 20 knots, gusts to 25 knots. Partly sunny. Waves 2 to 3 feet. .SUNDAY NIGHT...Northwest wind 10 to 20 knots. Partly cloudy. Waves 2 to 4 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ JLD