FZUS53 KAPX 171346 NSHAPX Nearshore Marine Forecast National Weather Service Gaylord MI 946 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. LSZ321-172200- Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI- 946 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...Southeast wind 10 to 20 knots. Patchy fog in the late morning. Waves 2 feet or less building to 2 to 4 feet in the afternoon. .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. .SATURDAY NIGHT...Northwest wind 15 to 25 knots. Mostly cloudy. Waves 6 to 9 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LSZ322-172200- St. Marys River Point Iroquois to E. Potagannissing Bay- 946 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...Southeast wind 10 to 20 knots. Patchy fog in the late morning. .TONIGHT...Southeast wind 15 to 20 knots. Rain and a chance of thunderstorms. .SATURDAY...Northwest wind 15 to 25 knots. Scattered rain and snow showers. .SATURDAY NIGHT...Northwest wind 15 to 20 knots. Mostly cloudy. Winds higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LMZ341-172200- Seul Choix Point to 5NM West of Mackinac Bridge- 946 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...Southeast wind 10 to 20 knots. Patchy fog in the late morning. 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. .SATURDAY NIGHT...Northwest wind 10 to 20 knots. Mostly 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. $$ LMZ342-172200- Norwood MI to 5NM West of Mackinac Bridge including Little Traverse Bay- 946 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...Southeast wind 10 to 20 knots. Mostly sunny. Waves 2 feet or less. .TONIGHT...South wind 10 to 20 knots. Rain and a chance of thunderstorms. Waves 2 to 4 feet. .SATURDAY...West wind 10 to 20 knots. Scattered rain and snow showers. Waves 2 to 4 feet. .SATURDAY NIGHT...Northwest wind 10 to 20 knots. Mostly cloudy. Waves 3 to 5 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LMZ323-172200- Grand Traverse Bay south of a line Grand Traverse Light to Norwood MI- 946 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...Southeast wind 10 to 20 knots. Sunny. 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. .SATURDAY NIGHT...Northwest wind 10 to 20 knots. Mostly 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. $$ LMZ344-172200- Sleeping Bear Point to Grand Traverse Light MI- 946 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...Southeast wind 15 to 20 knots. Sunny. Waves 2 feet or less. .TONIGHT...South wind 10 to 20 knots. Rain and a chance of thunderstorms. Waves 2 to 4 feet. .SATURDAY...West wind 10 to 20 knots. Scattered rain and snow showers. Waves 2 to 4 feet. .SATURDAY NIGHT...Northwest wind 10 to 20 knots. Mostly cloudy. Waves 2 to 4 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LMZ345-172200- Point Betsie to Sleeping Bear Point MI- 946 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...South wind 5 to 10 knots rising to 10 to 15 knots in the afternoon. Mostly sunny. 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. .SATURDAY NIGHT...Northwest wind 10 to 15 knots. Mostly 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. $$ LMZ346-172200- Manistee to Point Betsie MI- 946 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...South wind 15 to 20 knots. Mostly sunny. Waves 2 feet or less. .TONIGHT...South wind 15 to 25 knots. Rain and a chance of thunderstorms. Waves 3 to 5 feet. .SATURDAY...West wind 10 to 20 knots. Scattered snow showers. Waves 3 to 5 feet. .SATURDAY NIGHT...Northwest wind 10 to 20 knots. Partly cloudy. Waves 3 to 5 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LHZ345-172200- Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island- 946 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...East wind 10 to 15 knots becoming 10 to 20 knots in the afternoon. Patchy fog in the late morning. Waves 2 feet or less building to 2 to 4 feet in the afternoon. .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. .SATURDAY NIGHT...Northwest wind 10 to 20 knots. Mostly 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. $$ LHZ346-172200- St Ignace to False Detour Channel- 946 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...East wind 10 to 20 knots. Patchy fog in the late morning. Waves 2 feet or less building to 3 to 5 feet in the afternoon. .TONIGHT...Southeast wind 15 to 25 knots. Rain and a chance of thunderstorms. Waves 5 to 8 feet. .SATURDAY...Northwest wind 10 to 20 knots. Scattered rain and snow showers. Waves 4 to 7 feet. .SATURDAY NIGHT...Northwest wind 10 to 20 knots. Mostly cloudy. Waves 3 to 5 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LHZ347-172200- 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island- 946 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...East wind 10 to 20 knots. Patchy fog in the late morning. Waves 2 feet or less building to 3 to 5 feet in the afternoon. .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 4 to 6 feet. .SATURDAY NIGHT...Northwest wind 15 to 25 knots. Mostly cloudy. Waves 4 to 6 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LHZ348-172200- Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary- 946 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...Southeast wind 10 to 15 knots. Patchy fog in the late morning. Waves 2 feet or less building to 2 to 3 feet in the afternoon. .TONIGHT...South wind 15 to 25 knots. Rain likely and a chance of thunderstorms. Waves 5 to 8 feet. .SATURDAY...West wind 10 to 20 knots. Numerous showers and scattered snow showers. Waves 4 to 7 feet. .SATURDAY NIGHT...Northwest wind 10 to 20 knots. Partly cloudy. Waves 4 to 6 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LHZ349-172200- Sturgeon Pt to Alabaster MI- 946 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM EDT THIS AFTERNOON THROUGH LATE SUNDAY NIGHT... .TODAY...Southeast wind 10 to 15 knots. Patchy fog in the late morning. 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. .SATURDAY NIGHT...Northwest wind 10 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. $$ MJG