FZUS53 KAPX 171842 NSHAPX Nearshore Marine Forecast National Weather Service Gaylord MI 242 PM EDT Sun May 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. LSZ321-180700- Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI- 242 PM EDT Sun May 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM EDT THIS EVENING THROUGH MONDAY MORNING... .TONIGHT...Southeast wind 10 to 20 knots. Gusts to 25 knots. Rain showers likely early in the evening. Chance of thunderstorms through the night. Rain showers after midnight. Waves 2 to 4 feet. .MONDAY...South wind 10 to 15 knots. Chance of showers and thunderstorms. Waves 2 to 3 feet. .MONDAY NIGHT...South wind 5 to 10 knots. Chance of showers and thunderstorms. Waves 2 feet or less. .TUESDAY...Southwest wind 10 to 20 knots. Rain 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. $$ LSZ322-180700- St. Marys River Point Iroquois to E. Potagannissing Bay- 242 PM EDT Sun May 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM EDT THIS EVENING THROUGH MONDAY MORNING... .TONIGHT...Southeast wind 10 to 20 knots. Gusts to 25 knots. Rain showers early in the evening. Chance of thunderstorms through the night. Chance of showers after midnight. .MONDAY...South wind 10 to 15 knots. Chance of showers and slight chance of thunderstorms. .MONDAY NIGHT...South wind 5 to 10 knots. Chance of showers and thunderstorms. .TUESDAY...Southwest wind 15 to 20 knots. Rain showers. Winds higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LMZ341-180700- Seul Choix Point to 5NM West of Mackinac Bridge- 242 PM EDT Sun May 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH MONDAY EVENING... .TONIGHT...Southeast wind 10 to 20 knots. Gusts to 25 knots. Rain showers early in the evening. Chance of thunderstorms through the night. Rain showers likely after midnight. Waves 2 to 4 feet. .MONDAY...Southwest wind 10 to 20 knots. Gusts to 25 knots. Chance of showers and slight chance of thunderstorms. Waves 4 to 7 feet. .MONDAY NIGHT...Southwest wind 15 to 20 knots. Rain showers and a chance of thunderstorms. Waves 4 to 6 feet. .TUESDAY...Southwest wind 15 to 25 knots. Rain 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. $$ LMZ342-180700- Norwood MI to 5NM West of Mackinac Bridge including Little Traverse Bay- 242 PM EDT Sun May 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH MONDAY EVENING... .TONIGHT...Southeast wind 10 to 20 knots. Gusts to 25 knots. Rain showers and a chance of thunderstorms early in the evening, then chance of showers and slight chance of thunderstorms after midnight. Waves 2 to 4 feet subsiding to 2 to 3 feet after midnight. .MONDAY...Southwest wind 10 to 20 knots. Gusts to 25 knots. Chance of showers and slight chance of thunderstorms. Waves 2 to 4 feet. .MONDAY NIGHT...South wind 10 to 15 knots. Rain showers and a chance of thunderstorms. Waves 2 to 4 feet. .TUESDAY...Southwest wind 15 to 25 knots with gusts to around 35 knots. Rain showers. Waves 4 to 6 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LMZ323-180700- Grand Traverse Bay south of a line Grand Traverse Light to Norwood MI- 242 PM EDT Sun May 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH MONDAY EVENING... .TONIGHT...Southeast wind 10 to 20 knots becoming south early in the morning. Gusts to 25 knots. Rain showers and a chance of thunderstorms early in the evening, then slight chance of showers and thunderstorms after midnight. Waves 2 to 3 feet. .MONDAY...Southwest wind 10 to 20 knots. Gusts to 25 knots. Chance of showers and slight chance of thunderstorms. Waves 2 to 3 feet. .MONDAY NIGHT...South wind 10 to 20 knots. Rain showers and a chance of thunderstorms. Waves 2 to 3 feet. .TUESDAY...Southwest wind 10 to 20 knots. Rain showers likely. Waves 2 to 4 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LMZ344-345-180700- Sleeping Bear Point to Grand Traverse Light MI- Point Betsie to Sleeping Bear Point MI- 242 PM EDT Sun May 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH MONDAY EVENING... .TONIGHT...East wind 10 to 15 knots becoming south 10 to 20 knots after midnight. Gusts to 25 knots. Rain showers and a chance of thunderstorms early in the evening, then chance of showers and slight chance of thunderstorms after midnight. Waves 2 feet or less building to 2 to 4 feet after midnight. .MONDAY...Southwest wind 10 to 20 knots. Gusts to 25 knots. Chance of showers and slight chance of thunderstorms. Waves 4 to 6 feet. .MONDAY NIGHT...South wind 10 to 20 knots. Rain showers and a chance of thunderstorms. Waves 3 to 5 feet. .TUESDAY...Southwest wind 15 to 25 knots. Rain showers likely. Waves 4 to 7 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LMZ346-180700- Manistee to Point Betsie MI- 242 PM EDT Sun May 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH MONDAY EVENING... .TONIGHT...South wind 10 to 20 knots. Gusts to 25 knots. Rain showers likely and a chance of thunderstorms early in the evening, then slight chance of showers and thunderstorms after midnight. Waves 2 feet or less building to 3 to 5 feet after midnight. .MONDAY...South wind 10 to 20 knots. Gusts to 25 knots. Chance of showers and slight chance of thunderstorms. Waves 4 to 6 feet. .MONDAY NIGHT...South wind 10 to 20 knots. Chance of showers and thunderstorms. Waves 4 to 6 feet. .TUESDAY...Southwest wind 15 to 25 knots. Rain showers likely. Waves 5 to 8 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LHZ345-180700- Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island- 242 PM EDT Sun May 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH LATE TONIGHT... .TONIGHT...Southeast wind 10 to 20 knots. Gusts to 25 knots. Rain showers early in the evening. Chance of thunderstorms through the night. Chance of showers after midnight. Waves 2 to 4 feet. .MONDAY...Southwest wind 10 to 15 knots. Chance of showers and slight chance of thunderstorms. Waves 2 to 3 feet. .MONDAY NIGHT...South wind 10 to 15 knots. Rain showers likely and a chance of thunderstorms. Waves 2 feet or less. .TUESDAY...Southwest wind 15 to 25 knots. Rain showers. Waves 2 to 4 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LHZ346-180700- St Ignace to False Detour Channel- 242 PM EDT Sun May 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH LATE TONIGHT... .TONIGHT...Southeast wind 10 to 20 knots. Gusts to 25 knots. Rain showers early in the evening. Chance of thunderstorms through the night. Rain showers likely after midnight. Waves 3 to 5 feet. .MONDAY...South wind 10 to 15 knots. Chance of showers and slight chance of thunderstorms. Waves 2 to 4 feet. .MONDAY NIGHT...South wind 10 to 15 knots. Rain showers likely and a chance of thunderstorms. Waves 2 to 3 feet. .TUESDAY...Southwest wind 15 to 25 knots. Rain 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. $$ LHZ347-180700- 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island- 242 PM EDT Sun May 17 2026 .TONIGHT...Southeast wind 10 to 20 knots. Rain showers early in the evening. Chance of thunderstorms through the night. Chance of showers after midnight. Waves 2 to 4 feet. .MONDAY...Southwest wind 10 to 15 knots. Chance of showers and thunderstorms. Waves 2 to 4 feet. .MONDAY NIGHT...South wind 5 to 10 knots. Chance of showers and thunderstorms. Waves 2 feet or less. .TUESDAY...Southwest wind 15 to 25 knots. Rain showers. Waves 3 to 5 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LHZ348-180700- Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary- 242 PM EDT Sun May 17 2026 .TONIGHT...East wind 10 to 15 knots becoming south after midnight. Rain showers and a chance of thunderstorms early in the evening, then chance of showers and slight chance of thunderstorms after midnight. Waves 2 to 4 feet. .MONDAY...South wind 15 to 20 knots. Chance of showers and thunderstorms. Waves 4 to 6 feet. .MONDAY NIGHT...South wind 10 to 15 knots. Chance of showers. Waves 2 to 4 feet. .TUESDAY...Southwest wind 10 to 20 knots. Rain showers likely. Waves 4 to 6 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LHZ349-180700- Sturgeon Pt to Alabaster MI- 242 PM EDT Sun May 17 2026 .TONIGHT...Northeast wind 10 to 15 knots becoming south after midnight. Chance of showers and thunderstorms early in the evening. Waves 2 to 3 feet. .MONDAY...South wind 10 to 20 knots. Chance of showers and thunderstorms. Waves 3 to 5 feet. .MONDAY NIGHT...Southwest wind 10 to 20 knots. Chance of showers. Waves 2 to 4 feet. .TUESDAY...Southwest wind 15 to 25 knots. Rain showers likely. Waves 4 to 6 feet. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ MSB