FZUS53 KAPX 181840 NSHAPX Nearshore Marine Forecast National Weather Service Gaylord MI 240 PM 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. LSZ321-190245- Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI- 240 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...West wind 10 to 20 knots. Isolated snow showers early in the evening, then scattered snow showers after midnight. Waves 6 to 9 feet. Waves occasionally around 11 feet. .SUNDAY...Northwest wind 15 to 25 knots. Scattered snow showers. Waves 5 to 8 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Mostly cloudy. Waves 5 to 8 feet. .MONDAY...West wind 5 to 10 knots. Mostly sunny. Waves 2 to 3 feet. Wave heights are valid for ice free areas. See the open lakes forecast for days 3 through 5. $$ LSZ322-190245- St. Marys River Point Iroquois to E. Potagannissing Bay- 240 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...West wind 10 to 20 knots. Isolated snow showers after midnight. .SUNDAY...Northwest wind 15 to 25 knots. Isolated snow showers. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Partly cloudy. .MONDAY...West wind 5 to 10 knots. Mostly sunny. See the open lakes forecast for days 3 through 5. $$ LMZ341-190245- Seul Choix Point to 5NM West of Mackinac Bridge- 240 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...West wind 15 to 20 knots. Mostly cloudy early in the evening then becoming partly cloudy. Waves 2 feet or less building to 2 to 3 feet after midnight. .SUNDAY...Northwest wind 10 to 20 knots. Isolated snow showers. Waves 2 to 3 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Partly cloudy. Waves 2 to 3 feet. .MONDAY...Southwest wind 15 to 20 knots. Mostly sunny. Waves 2 to 3 feet. See the open lakes forecast for days 3 through 5. $$ LMZ342-190245- Norwood MI to 5NM West of Mackinac Bridge including Little Traverse Bay- 240 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...West wind 15 to 20 knots. Isolated snow showers. Waves 2 to 4 feet. .SUNDAY...Northwest wind 10 to 20 knots. Isolated snow showers. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Partly cloudy. Waves 2 to 4 feet. .MONDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LMZ323-190245- Grand Traverse Bay south of a line Grand Traverse Light to Norwood MI- 240 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...West wind 15 to 20 knots. Isolated rain and snow showers early in the evening. Waves 2 to 3 feet. .SUNDAY...Northwest wind 10 to 20 knots. Isolated snow showers. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Partly cloudy. Waves 2 to 4 feet. .MONDAY...West wind 5 to 10 knots. Mostly sunny. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LMZ344-190245- Sleeping Bear Point to Grand Traverse Light MI- 240 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...West wind 15 to 20 knots. Isolated rain and snow showers early in the evening. Waves 2 to 3 feet. .SUNDAY...Northwest wind 10 to 15 knots. Isolated snow showers. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 15 to 20 knots. Partly cloudy. Waves 2 to 4 feet. .MONDAY...West wind 5 to 10 knots. Mostly sunny. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LMZ345-190245- Point Betsie to Sleeping Bear Point MI- 240 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...West wind 15 to 20 knots decreasing to 5 to 15 knots early in the morning. Isolated rain and snow showers early in the evening. Waves 2 to 4 feet. .SUNDAY...Northwest wind 10 to 15 knots. Isolated snow showers. Waves 2 to 4 feet. .SUNDAY NIGHT...North wind 10 to 15 knots. Partly cloudy. Waves 2 to 3 feet. .MONDAY...Southwest wind 10 to 15 knots. Sunny. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LMZ346-190245- Manistee to Point Betsie MI- 240 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...West wind 15 to 20 knots decreasing to 5 to 15 knots early in the morning. Mostly cloudy early in the evening then clearing. Waves 3 to 5 feet subsiding to 2 to 4 feet after midnight. .SUNDAY...Northwest wind 10 to 15 knots. Isolated snow showers. Waves 2 to 4 feet. .SUNDAY NIGHT...North wind 10 to 15 knots. Partly cloudy. Waves 2 to 3 feet. .MONDAY...Southwest wind 10 to 15 knots. Sunny. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LHZ345-190245- Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island- 240 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...Northwest wind 10 to 15 knots becoming west after midnight. Isolated snow showers. Waves 2 feet or less building to 2 to 3 feet after midnight. .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. .MONDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. Wave heights are valid for ice free areas. See the open lakes forecast for days 3 through 5. $$ LHZ346-190245- St Ignace to False Detour Channel- 240 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...West wind 10 to 20 knots. Isolated snow showers after midnight. Waves 2 to 3 feet. .SUNDAY...Northwest wind 15 to 25 knots. Partly sunny. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest wind 15 to 25 knots. Partly cloudy. Waves 2 to 4 feet. .MONDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LHZ347-190245- 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island- 240 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...West wind 10 to 20 knots. Isolated snow showers through the night. Waves 2 to 4 feet subsiding to 2 to 3 feet after midnight. .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. .MONDAY...West wind 5 to 10 knots. Mostly sunny. Waves 2 to 3 feet. See the open lakes forecast for days 3 through 5. $$ LHZ348-190245- Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary- 240 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...Northwest wind 10 to 15 knots becoming west early in the morning. Isolated snow showers early in the evening. Waves 2 to 4 feet subsiding to 2 to 3 feet after midnight. .SUNDAY...Northwest wind 15 to 25 knots. Isolated snow showers. Waves 4 to 7 feet. .SUNDAY NIGHT...Northwest wind 15 to 25 knots. Partly cloudy. Waves 5 to 8 feet. .MONDAY...Northwest wind 10 to 15 knots. Mostly sunny. Waves 2 to 3 feet. See the open lakes forecast for days 3 through 5. $$ LHZ349-190245- Sturgeon Pt to Alabaster MI- 240 PM EDT Sat Apr 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE SUNDAY NIGHT... .TONIGHT...West wind 10 to 15 knots. Mostly cloudy early in the evening then becoming partly cloudy. Waves 2 feet or less. .SUNDAY...Northwest wind 10 to 20 knots. Scattered snow showers and isolated showers. Waves 2 to 3 feet. .SUNDAY NIGHT...Northwest wind 10 to 20 knots. Partly cloudy. Waves 2 to 4 feet. .MONDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ JK