FZUS53 KDTX 031951 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 351 PM EDT Sun May 3 2026 For waters within five nautical miles of shore 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. LHZ422-040400- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 351 PM EDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... .TONIGHT...Southwest winds 20 to 25 knots with gusts to 30 knots diminishing to 15 to 20 knots after midnight. Partly cloudy. A slight chance of showers in the evening. Waves 3 to 5 feet subsiding to 1 to 3 feet early in the morning. Waves occasionally around 7 feet. .MONDAY...Southwest winds 10 to 15 knots increasing to 20 to 25 knots with gusts to 30 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 3 feet building to 3 to 5 feet in the late morning and afternoon. Waves occasionally around 7 feet. .MONDAY NIGHT...Southwest winds 20 to 25 knots with gusts to 30 knots diminishing to 15 to 20 knots in the late evening and early morning, then becoming northwest 10 to 15 knots after midnight. Partly cloudy. A chance of showers until early morning. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. Waves occasionally around 7 feet. .TUESDAY...West winds 10 to 15 knots. Mostly cloudy with a chance of showers. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-040400- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 351 PM EDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT... .TONIGHT...Southwest winds 20 to 25 knots with gusts to 30 knots diminishing to 15 to 20 knots after midnight. Partly cloudy. A slight chance of showers in the evening. Waves 3 to 5 feet subsiding to 2 to 4 feet early in the morning. Waves occasionally around 7 feet. .MONDAY...Southwest winds 10 to 15 knots increasing to 20 to 25 knots with gusts to 30 knots in the late morning and afternoon. Partly cloudy becoming mostly sunny in the late morning and early afternoon becoming partly cloudy. Waves 1 to 3 feet building to 3 to 5 feet in the late morning and afternoon. Waves occasionally around 7 feet. .MONDAY NIGHT...Southwest winds 20 to 25 knots diminishing to 15 to 20 knots in the late evening and early morning, then becoming northwest 10 to 15 knots after midnight. Partly cloudy until early morning becoming mostly cloudy. A chance of showers until early morning. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. Waves occasionally around 7 feet. .TUESDAY...West winds 10 to 15 knots backing to the southwest early in the afternoon. Mostly cloudy with a chance of showers. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-040400- Port Austin to Harbor Beach MI- 351 PM EDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... .TONIGHT...Southwest winds 15 to 20 knots diminishing to 10 to 15 knots early in the morning. Partly cloudy. A chance of showers in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet early in the morning. .MONDAY...Southwest winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. Mostly sunny until late afternoon becoming partly cloudy. Waves 1 to 3 feet building to 2 to 4 feet early in the afternoon. .MONDAY NIGHT...Southwest winds 15 to 20 knots becoming northwest 10 to 15 knots after midnight. Partly cloudy until early morning becoming mostly cloudy. A chance of showers until early morning. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .TUESDAY...North winds 5 to 10 knots backing to the northwest in the late morning and afternoon. Mostly cloudy with a chance of showers. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-040400- Harbor Beach to Port Sanilac MI- 351 PM EDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... .TONIGHT...Southwest winds 15 to 20 knots. Partly cloudy. A slight chance of showers in the evening. Waves 1 to 3 feet. .MONDAY...Southwest winds 10 to 15 knots increasing to 15 to 20 knots early in the afternoon. Mostly sunny. Waves 1 to 3 feet. .MONDAY NIGHT...Southwest winds 15 to 20 knots becoming northwest 10 to 15 knots after midnight. Partly cloudy until early morning becoming mostly cloudy. A chance of showers until early morning. Waves 1 to 3 feet. .TUESDAY...North winds 10 to 15 knots becoming northwest 5 to 10 knots in the late morning and afternoon. Mostly cloudy. A chance of showers until late afternoon, then showers likely early in the afternoon. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-040400- Port Sanilac to Port Huron MI- 351 PM EDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... .TONIGHT...Southwest winds 15 to 20 knots. Partly cloudy. A slight chance of showers in the evening. Waves 1 to 3 feet. .MONDAY...Southwest winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 3 feet. .MONDAY NIGHT...Southwest winds 15 to 20 knots veering to the west after midnight. Mostly clear until early morning becoming mostly cloudy. A chance of showers until early morning. Waves 1 to 3 feet. .TUESDAY...Northwest winds 10 to 15 knots becoming north 5 to 10 knots early in the afternoon. Mostly cloudy. A chance of showers until late afternoon, then showers likely early in the afternoon. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-040400- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 351 PM EDT Sun May 3 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... .TONIGHT...Southwest winds 15 to 20 knots. Partly cloudy. A slight chance of showers in the evening. Waves 2 to 4 feet. .MONDAY...Southwest winds 10 to 15 knots increasing to 15 to 20 knots early in the afternoon. Mostly sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. .MONDAY NIGHT...Southwest winds 15 to 20 knots. Partly cloudy. A chance of showers until early morning. A chance of thunderstorms in the late evening and early morning. Waves 1 to 3 feet. .TUESDAY...Southwest winds 10 to 15 knots veering to the northwest early in the afternoon. Light showers likely until late afternoon. Rain showers early in the afternoon. Waves 2 feet or less. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 51 degrees. $$ AM You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes