FZUS53 KAPX 200117 NSHAPX Nearshore Marine Forecast National Weather Service Gaylord MI 917 PM EDT Sun Apr 19 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. LSZ321-200930- Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI- 917 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT MONDAY... .OVERNIGHT...North wind 10 to 15 knots. Isolated snow showers through the night. Waves 4 to 6 feet subsiding to 3 to 5 feet after midnight. .MONDAY...Southwest wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 10 to 20 knots. Mostly cloudy. Waves 2 to 3 feet. .TUESDAY...West wind 10 to 15 knots. Sunny. Waves 2 feet or less. Wave heights are valid for ice free areas. See the open lakes forecast for days 3 through 5. $$ LSZ322-200930- St. Marys River Point Iroquois to E. Potagannissing Bay- 917 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT MONDAY... .OVERNIGHT...North wind 10 to 15 knots early in the evening becoming variable 10 knots or less. Partly cloudy. .MONDAY...West wind 5 to 10 knots. Mostly sunny. .MONDAY NIGHT...South wind 10 to 15 knots. Mostly cloudy. .TUESDAY...West wind 10 to 15 knots. Sunny. See the open lakes forecast for days 3 through 5. $$ LMZ341-200930- Seul Choix Point to 5NM West of Mackinac Bridge- 917 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT MONDAY... .OVERNIGHT...Northwest wind 10 to 15 knots. Partly cloudy. Waves 2 feet or less. .MONDAY...Southwest wind 15 to 20 knots. Mostly sunny. Waves 2 to 4 feet. .MONDAY NIGHT...Southwest wind 15 to 25 knots. Mostly cloudy. Waves 4 to 7 feet. .TUESDAY...West wind 15 to 20 knots. Sunny. Waves 4 to 6 feet. See the open lakes forecast for days 3 through 5. $$ LMZ342-200930- Norwood MI to 5NM West of Mackinac Bridge including Little Traverse Bay- 917 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT MONDAY... .OVERNIGHT...Northwest wind 10 to 15 knots. Partly cloudy. Waves 2 to 4 feet subsiding to 2 to 3 feet after midnight. .MONDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 15 to 20 knots. Mostly cloudy. Waves 2 to 4 feet. .TUESDAY...West wind 10 to 15 knots. Sunny. Waves 2 to 4 feet. See the open lakes forecast for days 3 through 5. $$ LMZ323-200930- Grand Traverse Bay south of a line Grand Traverse Light to Norwood MI- 917 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT MONDAY... .OVERNIGHT...Northwest wind 10 to 15 knots. Mostly clear. Waves 2 to 4 feet subsiding to 2 to 3 feet after midnight. .MONDAY...West wind 5 to 10 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 15 to 20 knots. Mostly cloudy. Waves 2 to 3 feet. .TUESDAY...West wind 10 to 15 knots. Sunny. Waves 2 to 3 feet. See the open lakes forecast for days 3 through 5. $$ LMZ344-200930- Sleeping Bear Point to Grand Traverse Light MI- 917 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT MONDAY... .OVERNIGHT...Northwest wind 10 to 15 knots. Mostly clear. Waves 2 to 4 feet subsiding to 2 to 3 feet after midnight. .MONDAY...West wind 5 to 10 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 10 to 20 knots. Mostly cloudy. Waves 2 to 4 feet. .TUESDAY...West wind 10 to 15 knots. Sunny. Waves 2 to 4 feet. See the open lakes forecast for days 3 through 5. $$ LMZ345-200930- Point Betsie to Sleeping Bear Point MI- 917 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT MONDAY... .OVERNIGHT...Northwest wind 10 to 15 knots. Mostly clear. Waves 2 to 3 feet. .MONDAY...Southwest wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 15 to 20 knots. Mostly cloudy. Waves 3 to 5 feet. .TUESDAY...Southwest wind 10 to 15 knots. Sunny. Waves 2 to 4 feet. See the open lakes forecast for days 3 through 5. $$ LMZ346-200930- Manistee to Point Betsie MI- 917 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT MONDAY... .OVERNIGHT...Northwest wind 10 to 15 knots. Mostly clear. Waves 2 to 3 feet. .MONDAY...Southwest wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 10 to 20 knots. Mostly cloudy. Waves 3 to 5 feet. .TUESDAY...Southwest wind 15 to 20 knots. Sunny. Waves 3 to 5 feet. See the open lakes forecast for days 3 through 5. $$ LHZ345-200930- Straits of Mackinac within 5 nm of Mackinac Bridge including Mackinac Island- 917 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT MONDAY... .OVERNIGHT...Northwest wind 10 to 15 knots. Partly cloudy. Waves 2 to 3 feet. .MONDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 10 to 15 knots. Mostly cloudy. Waves 2 feet or less. .TUESDAY...West wind 10 to 15 knots. Sunny. Waves 2 feet or less. See the open lakes forecast for days 3 through 5. $$ LHZ346-200930- St Ignace to False Detour Channel- 917 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT MONDAY... .OVERNIGHT...Northwest wind 10 to 15 knots. Partly cloudy. Waves 2 to 3 feet subsiding to 2 feet or less after midnight. .MONDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 10 to 20 knots. Mostly cloudy. Waves 2 to 4 feet. .TUESDAY...West wind 15 to 20 knots. Sunny. Waves 2 to 4 feet. See the open lakes forecast for days 3 through 5. $$ LHZ347-200930- 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island- 917 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT MONDAY... .OVERNIGHT...Northwest wind 15 to 20 knots. Mostly cloudy early in the evening then becoming partly cloudy. Waves 4 to 7 feet subsiding to 3 to 5 feet after midnight. Waves occasionally around 8 feet. .MONDAY...Northwest wind 5 to 10 knots. Mostly sunny. Waves 2 feet or less. .MONDAY NIGHT...South wind 10 to 15 knots. Mostly cloudy. Waves 2 to 3 feet. .TUESDAY...West wind 10 to 15 knots. Sunny. Waves 2 to 3 feet. See the open lakes forecast for days 3 through 5. $$ LHZ348-200930- Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary- 917 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT MONDAY... .OVERNIGHT...Northwest wind 15 to 20 knots. Mostly cloudy early in the evening then becoming partly cloudy. Waves 4 to 7 feet subsiding to 4 to 6 feet after midnight. Waves occasionally around 9 feet. .MONDAY...North wind 10 to 15 knots. Mostly sunny. Waves 2 to 3 feet. .MONDAY NIGHT...South wind 10 to 20 knots. Mostly cloudy. Waves 3 to 5 feet. .TUESDAY...South wind 15 to 20 knots. Mostly sunny. Waves 3 to 5 feet. See the open lakes forecast for days 3 through 5. $$ LHZ349-200930- Sturgeon Pt to Alabaster MI- 917 PM EDT Sun Apr 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT MONDAY... .OVERNIGHT...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. .MONDAY NIGHT...South wind 10 to 20 knots. Mostly cloudy. Waves 2 to 4 feet. .TUESDAY...Southwest wind 15 to 20 knots. Mostly sunny. Waves3 to 5 feet. See the open lakes forecast for days 3 through 5. $$ JLD