FZUS53 KAPX 181501 NSHAPX Nearshore Marine Forecast National Weather Service Gaylord MI 1101 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. LSZ321-182315- Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI- 1101 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...Northwest wind 15 to 25 knots. Isolated snow showers in the afternoon. Waves 6 to 9 feet. Waves occasionally around 12 feet. .TONIGHT...West wind 10 to 20 knots. Scattered snow showers. Waves 6 to 9 feet. .SUNDAY...Northwest wind 15 to 25 knots. Partly sunny. Waves 5 to 8 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. $$ LSZ322-182315- St. Marys River Point Iroquois to E. Potagannissing Bay- 1101 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...Northwest wind 15 to 25 knots. Isolated snow showers in the afternoon. .TONIGHT...West wind 15 to 20 knots. Slight chance of snow showers. .SUNDAY...Northwest wind 15 to 25 knots. Partly sunny. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Partly cloudy. See the open lakes forecast for days 3 through 5. $$ LMZ341-182315- Seul Choix Point to 5NM West of Mackinac Bridge- 1101 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 early in the evening. Isolated snow showers in the afternoon. Waves 2 to 3 feet. .TONIGHT...West wind 10 to 15 knots. Isolated snow showers. Waves 2 to 3 feet. .SUNDAY...Northwest wind 10 to 20 knots. Partly sunny. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Partly cloudy. Waves 2 to 3 feet. See the open lakes forecast for days 3 through 5. $$ LMZ342-182315- Norwood MI to 5NM West of Mackinac Bridge including Little Traverse Bay- 1101 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 15 to 20 knots decreasing to 5 to 15 knots early in the evening. Isolated rain and snow showers in the afternoon. Waves 2 to 4 feet. .TONIGHT...West wind 15 to 20 knots. Isolated snow showers. Waves 2 to 4 feet. .SUNDAY...Northwest wind 10 to 20 knots. Mostly sunny. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Partly cloudy. Waves 2 to 4 feet. See the open lakes forecast for days 3 through 5. $$ LMZ323-182315- Grand Traverse Bay south of a line Grand Traverse Light to Norwood MI- 1101 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 10 to 20 knots. Mostly cloudy in the late morning then becoming mostly sunny. Waves 2 to 4 feet. .TONIGHT...West wind 10 to 15 knots. Isolated snow showers. Waves 2 to 3 feet. .SUNDAY...Northwest wind 10 to 20 knots. Mostly sunny. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 10 to 15 knots. Partly cloudy. Waves 2 to 4 feet. See the open lakes forecast for days 3 through 5. $$ LMZ344-182315- Sleeping Bear Point to Grand Traverse Light MI- 1101 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 10 to 20 knots. Partly sunny. Waves 2 to 4 feet. .TONIGHT...West wind 10 to 15 knots. Mostly cloudy. Waves 2 to 4 feet. .SUNDAY...Northwest wind 10 to 15 knots. Mostly sunny. Waves 2 to 4 feet. .SUNDAY NIGHT...North wind 10 to 15 knots. Partly cloudy. Waves 2 to 4 feet. See the open lakes forecast for days 3 through 5. $$ LMZ345-182315- Point Betsie to Sleeping Bear Point MI- 1101 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 10 to 20 knots. Partly sunny. Waves 2 to 4 feet. .TONIGHT...West wind 10 to 15 knots. Partly cloudy. Waves 2 to 4 feet. .SUNDAY...Northwest wind 10 to 15 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. $$ LMZ346-182315- Manistee to Point Betsie MI- 1101 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 15 to 20 knots. Partly sunny. Waves 3 to 5 feet. .TONIGHT...West wind 10 to 20 knots. Partly cloudy. Waves 3 to 5 feet. .SUNDAY...Northwest wind 10 to 15 knots. Mostly sunny. Waves 2 to 4 feet. .SUNDAY NIGHT...North wind 5 to 10 knots. Mostly clear. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LHZ345-182315- Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island- 1101 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 15 to 20 knots. Isolated rain and snow showers in the afternoon. Waves 2 to 4 feet. .TONIGHT...West wind 10 to 15 knots. Isolated snow showers. Waves 2 to 3 feet. .SUNDAY...Northwest wind 10 to 20 knots. Partly sunny. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Partly cloudy. Waves 2 to 3 feet. Wave heights are valid for ice free areas. See the open lakes forecast for days 3 through 5. $$ LHZ346-182315- St Ignace to False Detour Channel- 1101 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 15 to 20 knots. Isolated rain and snow showers in the afternoon. Waves 4 to 6 feet. .TONIGHT...West wind 10 to 20 knots. Isolated snow showers. Waves 2 to 3 feet. .SUNDAY...Northwest wind 15 to 25 knots. Partly sunny. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 15 to 25 knots. Partly cloudy. Waves 2 to 4 feet. See the open lakes forecast for days 3 through 5. $$ LHZ347-182315- 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island- 1101 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 15 to 20 knots. Partly sunny. Waves 3 to 5 feet. .TONIGHT...West wind 15 to 20 knots. Isolated snow showers. Waves 2 to 4 feet. .SUNDAY...Northwest wind 15 to 25 knots. Mostly sunny. Waves 4 to 7 feet. .SUNDAY NIGHT...Northwest wind 15 to 25 knots. Partly cloudy. Waves 4 to 7 feet. See the open lakes forecast for days 3 through 5. $$ LHZ348-182315- Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary- 1101 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 15 to 20 knots. Slight chance of showers in the late morning. Waves 4 to 6 feet. .TONIGHT...West wind 10 to 15 knots. Partly cloudy. Waves 2 to 4 feet. .SUNDAY...Northwest wind 15 to 25 knots. Partly sunny. Waves 4 to 7 feet. .SUNDAY NIGHT...Northwest wind 15 to 25 knots. Partly cloudy. Waves 5 to 8 feet. See the open lakes forecast for days 3 through 5. $$ LHZ349-182315- Sturgeon Pt to Alabaster MI- 1101 AM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TODAY...West wind 15 to 20 knots. Chance of showers in the late morning. Waves 3 to 5 feet. .TONIGHT...West wind 10 to 15 knots. Partly cloudy. Waves 2 feet or less. .SUNDAY...Northwest wind 10 to 20 knots. Partly sunny. Waves 2 to 3 feet. .SUNDAY NIGHT...Northwest wind 10 to 20 knots. Partly cloudy. Waves 2 to 4 feet. See the open lakes forecast for days 3 through 5. $$ JK