FZUS53 KAPX 150721 NSHAPX Nearshore Marine Forecast National Weather Service Gaylord MI 321 AM EDT Fri May 15 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. LSZ321-151530- Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI- 321 AM EDT Fri May 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH LATE TONIGHT... .TODAY...South wind 10 to 20 knots with gusts up to 25 knots. Chance of showers in the morning. Waves 2 to 3 feet building to 2 to 4 feet in the afternoon. .TONIGHT...Southwest wind 10 to 20 knots. Chance of showers and slight chance of thunderstorms. Waves 3 to 5 feet. .SATURDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .SATURDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 2 feet or less. Winds and waves higher in the vicinity of thunderstorms. See the open lakes forecast for days 3 through 5. $$ LSZ322-151530- St. Marys River Point Iroquois to E. Potagannissing Bay- 321 AM EDT Fri May 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH LATE TONIGHT... .TODAY...South wind 15 to 20 knots with gusts up to 25 knots decreasing to 10 to 15 knots in the afternoon. Slight chance of showers in the morning. .TONIGHT...Southwest wind 10 to 15 knots. Chance of showers. .SATURDAY...West wind 10 to 15 knots. Mostly sunny. .SATURDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. See the open lakes forecast for days 3 through 5. $$ LMZ341-151530- Seul Choix Point to 5NM West of Mackinac Bridge- 321 AM EDT Fri May 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EDT THIS MORNING THROUGH LATE TONIGHT... .TODAY...South wind 15 to 25 knots. Slight chance of showers in the morning. Waves 2 feet or less building to 6 to 9 feet in the morning. Waves occasionally around 11 feet. .TONIGHT...Southwest wind 15 to 25 knots. Slight chance of showers. Waves 7 to 10 feet. .SATURDAY...Southwest wind 10 to 15 knots. Mostly sunny. Waves 4 to 6 feet. .SATURDAY NIGHT...Light winds. Partly cloudy. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LMZ342-151530- Norwood MI to 5NM West of Mackinac Bridge including Little Traverse Bay- 321 AM EDT Fri May 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EDT THIS MORNING THROUGH LATE TONIGHT... .TODAY...South wind 15 to 25 knots decreasing to 10 to 15 knots in the afternoon. Slight chance of showers in the morning. Waves 2 to 3 feet building to 2 to 4 feet in the afternoon. .TONIGHT...Southwest wind 10 to 20 knots. Slight chance of showers. Waves 3 to 5 feet. .SATURDAY...Southwest wind 10 to 15 knots. Partly sunny. Waves 2 to 4 feet. .SATURDAY NIGHT...Light winds. Partly cloudy. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LMZ323-151530- Grand Traverse Bay south of a line Grand Traverse Light to Norwood MI- 321 AM EDT Fri May 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EDT THIS MORNING THROUGH LATE TONIGHT... .TODAY...South wind 10 to 15 knots. Gusts up to 30 knots. Mostly cloudy early in the morning then clearing. Waves 2 feet or less building to 2 to 3 feet in the afternoon. .TONIGHT...South wind 10 to 20 knots. Mostly cloudy. Waves 2 to 4 feet. .SATURDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .SATURDAY NIGHT...Northeast wind 5 to 10 knots. Partly cloudy. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LMZ344-345-151530- Sleeping Bear Point to Grand Traverse Light MI- Point Betsie to Sleeping Bear Point MI- 321 AM EDT Fri May 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EDT THIS MORNING THROUGH LATE TONIGHT... .TODAY...South wind 15 to 20 knots. Gusts up to 35 knots in the afternoon. Mostly cloudy early in the morning then clearing. Waves 2 feet or less building to 4 to 6 feet. .TONIGHT...South wind 10 to 20 knots. Mostly cloudy. Waves 4 to 6 feet. .SATURDAY...Southwest wind 10 to 15 knots. Partly sunny. Waves 2 to 4 feet. .SATURDAY NIGHT...Northeast wind 5 to 10 knots. Partly cloudy. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LMZ346-151530- Manistee to Point Betsie MI- 321 AM EDT Fri May 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM EDT THIS MORNING THROUGH LATE TONIGHT... .TODAY...South wind 15 to 20 knots. Gusts up to 35 knots in the afternoon. Mostly cloudy early in the morning then clearing. Waves 2 feet or less building to 4 to 6 feet. .TONIGHT...South wind 10 to 20 knots. Chance of showers. Waves 4 to 6 feet. .SATURDAY...Southwest wind 10 to 15 knots. Partly sunny. Waves 2 to 4 feet. .SATURDAY NIGHT...East wind 5 to 10 knots. Mostly cloudy. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LHZ345-151530- Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island- 321 AM EDT Fri May 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT... .TODAY...South wind 15 to 20 knots with gusts up to 25 knots becoming southwest 10 to 15 knots in the afternoon. Slight chance of showers in the morning. Waves 2 feet or less. .TONIGHT...Southwest wind 10 to 20 knots. Slight chance of showers. Waves 2 to 3 feet. .SATURDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .SATURDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LHZ346-151530- St Ignace to False Detour Channel- 321 AM EDT Fri May 15 2026 .TODAY...South wind 10 to 15 knots. Slight chance of showers in the morning. Waves 2 feet or less building to 2 to 4 feet in the afternoon. .TONIGHT...Southwest wind 15 to 20 knots. Slight chance of showers. Waves 2 to 4 feet. .SATURDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 to 3 feet. .SATURDAY NIGHT...Northwest wind 5 to 10 knots. Mostly clear. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LHZ347-151530- 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island- 321 AM EDT Fri May 15 2026 .TODAY...South wind 10 to 15 knots. Partly sunny early in the morning then becoming mostly sunny. Waves 2 feet or less building to 2 to 3 feet in the afternoon. .TONIGHT...Southwest wind 10 to 15 knots. Partly cloudy. Waves 2 to 3 feet. .SATURDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .SATURDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LHZ348-151530- Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary- 321 AM EDT Fri May 15 2026 .TODAY...South wind 15 to 20 knots. Partly cloudy then becoming partly sunny in the morning then becoming mostly sunny. Waves 2 to 3 feet building to 3 to 5 feet in the afternoon. .TONIGHT...South wind 10 to 20 knots. Partly cloudy. Waves 3 to 5 feet. .SATURDAY...Southwest wind 10 to 15 knots. Mostly sunny. Waves 2 to 3 feet. .SATURDAY NIGHT...Northwest wind 5 to 10 knots. Partly cloudy. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LHZ349-151530- Sturgeon Pt to Alabaster MI- 321 AM EDT Fri May 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH LATE TONIGHT... .TODAY...South wind 15 to 20 knots with gusts up to 25 knots decreasing to 5 to 15 knots early in the evening. Partly cloudy then becoming partly sunny in the morning then becoming mostly sunny. Waves 2 feet or less building to 2 to 4 feet in the afternoon. .TONIGHT...Southwest wind 10 to 20 knots. Partly cloudy. Waves 2 to 4 feet. .SATURDAY...Southwest wind 10 to 15 knots. Mostly sunny. Waves 2 to 3 feet. .SATURDAY NIGHT...North wind 5 to 10 knots. Partly cloudy. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ SJC