FZUS53 KAPX 170620 NSHAPX Nearshore Marine Forecast National Weather Service Gaylord MI 220 AM EDT Fri Apr 17 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. LSZ321-171600- Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI- 220 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .REST OF THE OVERNIGHT...Southeast wind 5 to 10 knots. Widespread dense fog. Waves 2 feet or less. .TODAY...Southeast wind 15 to 20 knots. Widespread fog. Waves 2 to 4 feet. .TONIGHT...Southeast wind 15 to 25 knots. Rain and a chance of thunderstorms. Waves 3 to 5 feet. .SATURDAY...Northwest wind 15 to 25 knots. Scattered rain and snow showers. Waves 6 to 9 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LSZ322-171600- St. Marys River Point Iroquois to E. Potagannissing Bay- 220 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .REST OF THE OVERNIGHT...Southeast wind 5 to 10 knots. Widespread fog. .TODAY...Southeast wind 15 to 20 knots. Widespread fog. .TONIGHT...Southeast wind 15 to 20 knots. Rain and a chance of thunderstorms. .SATURDAY...Northwest wind 15 to 25 knots. Scattered rain and snow showers. Winds higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LMZ341-171600- Seul Choix Point to 5NM West of Mackinac Bridge- 220 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .REST OF THE OVERNIGHT...Southeast wind 5 to 10 knots. Widespread dense fog. Waves 2 feet or less. .TODAY...Southeast wind 10 to 15 knots. Widespread fog. Waves 2 feet or less. .TONIGHT...South wind 10 to 20 knots. Rain and a chance of thunderstorms. Waves 3 to 5 feet. .SATURDAY...Northwest wind 10 to 20 knots. Scattered rain and snow showers. Waves 2 to 4 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LMZ342-171600- Norwood MI to 5NM West of Mackinac Bridge including Little Traverse Bay- 220 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .REST OF THE OVERNIGHT...Southeast wind 5 to 10 knots. Widespread fog. Waves 2 feet or less. .TODAY...Southeast wind 10 to 15 knots. Widespread fog. Waves 2 feet or less. .TONIGHT...South wind 10 to 20 knots. Rain and a chance of thunderstorms. Waves 2 to 4 feet. .SATURDAY...West wind 10 to 20 knots. Scattered rain and snow showers. Waves 2 to 4 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LMZ323-171600- Grand Traverse Bay south of a line Grand Traverse Light to Norwood MI- 220 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .REST OF THE OVERNIGHT...Southeast wind 5 to 10 knots. Widespread fog. Waves 2 feet or less. .TODAY...Southeast wind 10 to 15 knots. Widespread fog. Waves 2 feet or less. .TONIGHT...South wind 10 to 20 knots. Rain and a chance of thunderstorms. Waves 2 to 4 feet. .SATURDAY...West wind 10 to 20 knots. Scattered rain and snow showers. Waves 2 to 4 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LMZ344-171600- Sleeping Bear Point to Grand Traverse Light MI- 220 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .REST OF THE OVERNIGHT...Southeast wind 5 to 10 knots. Widespread fog. Waves 2 feet or less. .TODAY...South wind 10 to 15 knots. Widespread fog. Waves 2 feet or less. .TONIGHT...South wind 10 to 20 knots. Rain and a chance of thunderstorms. Waves 2 to 4 feet. .SATURDAY...West wind 10 to 20 knots. Scattered rain and snow showers. Waves 2 to 4 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LMZ345-171600- Point Betsie to Sleeping Bear Point MI- 220 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .REST OF THE OVERNIGHT...Southeast wind 5 to 10 knots. Widespread fog. Waves 2 feet or less. .TODAY...South wind 10 to 15 knots. Widespread dense fog. Waves 2 feet or less. .TONIGHT...South wind 10 to 20 knots. Rain and a chance of thunderstorms. Waves 2 to 4 feet. .SATURDAY...West wind 10 to 15 knots. Scattered snow showers. Waves 3 to 5 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LMZ346-171600- Manistee to Point Betsie MI- 220 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .REST OF THE OVERNIGHT...Southeast wind 5 to 10 knots. Widespread dense fog. Waves 2 feet or less. .TODAY...South wind 15 to 20 knots. Widespread dense fog. Waves 2 feet or less. .TONIGHT...South wind 15 to 25 knots. Rain and a chance of thunderstorms. Waves 3 to 5 feet. .SATURDAY...West wind 10 to 20 knots. Scattered snow showers. Waves 3 to 5 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LHZ345-171600- Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island- 220 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .REST OF THE OVERNIGHT...Southeast wind 5 to 10 knots. Widespread fog. Waves 2 feet or less. .TODAY...East wind 15 to 20 knots. Widespread fog. Waves 2 to 4 feet. .TONIGHT...South wind 10 to 20 knots. Rain and a chance of thunderstorms. Waves 3 to 5 feet. .SATURDAY...West wind 10 to 20 knots. Scattered rain and snow showers. Waves 2 to 3 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LHZ346-171600- St Ignace to False Detour Channel- 220 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .REST OF THE OVERNIGHT...Southeast wind 5 to 10 knots. Widespread fog. Waves 2 feet or less. .TODAY...Southeast wind 15 to 20 knots. Widespread fog. Waves 3 to 5 feet. .TONIGHT...Southeast wind 15 to 25 knots. Rain and a chance of thunderstorms. Waves 4 to 7 feet. .SATURDAY...Northwest wind 10 to 20 knots. Scattered rain and snow showers. Waves 4 to 7 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LHZ347-171600- 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island- 220 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .REST OF THE OVERNIGHT...Southeast wind 5 to 10 knots. Widespread fog. Waves 2 feet or less. .TODAY...Southeast wind 15 to 20 knots. Widespread fog. Waves 2 to 4 feet. .TONIGHT...Southeast wind 10 to 20 knots. Rain likely and a chance of thunderstorms. Waves 4 to 6 feet. .SATURDAY...West wind 10 to 20 knots. Scattered rain and snow showers. Waves 3 to 5 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LHZ348-171600- Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary- 220 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .REST OF THE OVERNIGHT...Light winds. Widespread fog. Waves 2 feet or less. .TODAY...Southeast wind 10 to 15 knots. Patchy fog. Waves 2 to 3 feet. .TONIGHT...South wind 15 to 25 knots. Rain likely and a chance of thunderstorms. Waves 4 to 7 feet. .SATURDAY...West wind 10 to 20 knots. Numerous showers and scattered snow showers. Waves 4 to 7 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LHZ349-171600- Sturgeon Pt to Alabaster MI- 220 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .REST OF THE OVERNIGHT...Light winds. Widespread dense fog. Waves 2 feet or less. .TODAY...Southeast wind 10 to 15 knots. Widespread dense fog. Waves 2 feet or less. .TONIGHT...South wind 15 to 25 knots. Rain likely and a chance of thunderstorms. Waves 4 to 6 feet. .SATURDAY...West wind 15 to 25 knots. Numerous showers. Waves 4 to 6 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ HAD