FZUS53 KDTX 270734 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 334 AM EDT Mon Apr 27 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. LHZ422-271545- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 334 AM EDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH TUESDAY EVENING... .TODAY...Southeast winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. Partly cloudy in the morning becoming mostly cloudy. Waves 1 to 3 feet. .TONIGHT...Southeast winds 20 to 25 knots with gusts to 35 knot gales. A chance of showers in the evening. A chance of thunderstorms. Rain showers after midnight. Waves 3 to 5 feet. Waves occasionally around 7 feet. .TUESDAY...Southwest winds 20 to 25 knots with gusts to 35 knot gales. Mostly cloudy early in the morning becoming partly cloudy. Waves 3 to 5 feet. Waves occasionally around 7 feet. .TUESDAY NIGHT...West winds 15 to 20 knots becoming north 5 to 10 knots in the late evening and overnight. Mostly cloudy. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-271545- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 334 AM EDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH TUESDAY EVENING... .TODAY...Southeast winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon. Partly cloudy. Waves 1 to 3 feet building to 2 to 4 feet in the afternoon. .TONIGHT...Southeast winds 20 to 25 knots with gusts to 30 knots. A chance of showers until early morning. A slight chance of thunderstorms in the late evening and early morning, then showers and a chance of thunderstorms after midnight. Waves 4 to 6 feet. Waves occasionally around 7 feet. .TUESDAY...Southwest winds 20 to 25 knots. Gusts to 30 knots. Mostly cloudy with a chance of showers early in the morning, then partly cloudy in the late morning and afternoon. Waves 4 to 6 feet. Waves occasionally around 8 feet. .TUESDAY NIGHT...West winds 15 to 20 knots becoming north 5 to 10 knots in the late evening and overnight. Mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-271545- Port Austin to Harbor Beach MI- 334 AM EDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH TUESDAY AFTERNOON... .TODAY...Southeast winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon. Mostly sunny in the morning becoming partly cloudy. Waves 1 to 3 feet building to 2 to 4 feet late in the afternoon. .TONIGHT...Southeast winds 20 to 25 knots. Gusts to 30 knots in the late evening and overnight. A chance of showers and a slight chance of thunderstorms in the late evening and early morning. Light showers and a chance of thunderstorms after midnight. Waves 4 to 6 feet building to 6 to 9 feet after midnight. Waves occasionally around 12 feet. .TUESDAY...South winds 20 to 25 knots with gusts to 30 knots becoming southwest 15 to 20 knots in the late morning and afternoon. Mostly cloudy with showers likely early in the morning, then partly cloudy in the late morning and afternoon. Waves 4 to 6 feet. Waves occasionally around 7 feet. .TUESDAY NIGHT...West winds 10 to 15 knots becoming north 5 to 10 knots in the late evening and overnight. Partly cloudy early in the evening becoming mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-271545- Harbor Beach to Port Sanilac MI- 334 AM EDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH TUESDAY AFTERNOON... .TODAY...Southeast winds 10 to 15 knots increasing to 15 to 20 knots late in the afternoon. Mostly sunny in the morning becoming partly cloudy. Waves 1 to 3 feet building to 2 to 4 feet late in the afternoon. .TONIGHT...Southeast winds 15 to 20 knots increasing to 20 to 25 knots with gusts to 30 knots in the late evening and overnight. A chance of showers and a slight chance of thunderstorms in the late evening and early morning. Light showers and a chance of thunderstorms after midnight. Waves 4 to 6 feet building to 6 to 9 feet after midnight. Waves occasionally around 12 feet. .TUESDAY...South winds 20 to 25 knots with gusts to 30 knots becoming southwest 15 to 20 knots in the late morning and afternoon. Mostly cloudy with showers likely early in the morning, then partly cloudy with a chance of showers in the late morning and early afternoon. Partly cloudy early in the afternoon. Waves 5 to 7 feet subsiding to 2 to 4 feet early in the afternoon. Waves occasionally around 10 feet. .TUESDAY NIGHT...West winds 10 to 15 knots becoming north 5 to 10 knots in the late evening and overnight. Partly cloudy early in the evening becoming mostly cloudy. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-271545- Port Sanilac to Port Huron MI- 334 AM EDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON THROUGH TUESDAY AFTERNOON... .TODAY...Southeast winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon. Mostly sunny in the morning becoming partly cloudy. Waves 1 to 3 feet building to 2 to 4 feet late in the afternoon. .TONIGHT...Southeast winds 15 to 20 knots increasing to 20 to 25 knots with gusts to 30 knots in the late evening and overnight. A chance of showers and a slight chance of thunderstorms in the late evening and early morning. Light showers and a chance of thunderstorms after midnight. Waves 4 to 6 feet. Waves occasionally around 8 feet. .TUESDAY...South winds 20 to 25 knots becoming southwest 15 to 20 knots in the late morning and afternoon. Mostly cloudy with a chance of showers early in the morning, then partly cloudy with a chance of showers in the late morning and early afternoon. Partly cloudy early in the afternoon. Waves 4 to 6 feet subsiding to 1 to 3 feet early in the afternoon. Waves occasionally around 8 feet. .TUESDAY NIGHT...West winds 10 to 15 knots becoming north 5 to 10 knots in the late evening and overnight. Partly cloudy early in the evening becoming mostly cloudy. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-271545- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 334 AM EDT Mon Apr 27 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH TUESDAY AFTERNOON... .TODAY...Southeast winds 10 to 15 knots becoming east 15 to 20 knots late in the afternoon. Mostly sunny in the morning becoming partly cloudy. Waves 1 to 3 feet. .TONIGHT...Southeast winds 15 to 20 knots with gusts to 30 knots becoming south 20 to 25 knots with gusts to 30 knots after midnight. A chance of showers in the evening. A chance of thunderstorms. Light showers after midnight. Waves 2 to 4 feet building to 3 to 5 feet in the late evening and overnight. Waves occasionally around 7 feet. .TUESDAY...South winds 20 to 25 knots with gusts to 30 knots becoming west 15 to 20 knots in the late morning and afternoon. Mostly cloudy early in the morning becoming partly cloudy. A chance of showers until late afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet early in the afternoon. .TUESDAY NIGHT...West winds 10 to 15 knots becoming north 5 to 10 knots in the late evening and overnight. Partly cloudy until early morning becoming mostly cloudy. A chance of showers after midnight. Waves 2 feet or less. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 52 degrees. $$ AA You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes