FZUS53 KDTX 171359 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 959 AM EDT Fri Apr 17 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. LHZ422-172200- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 959 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY EVENING... .REST OF TODAY...Light and variable winds becoming east 5 to 10 knots in the afternoon. Partly cloudy. Areas of fog late in the morning. Waves 2 feet or less. .TONIGHT...Southeast winds 15 to 20 knots becoming south 20 to 25 knots with gusts to 30 knots in the late evening and overnight. Partly cloudy until early morning, then showers and a chance of thunderstorms after midnight. Waves 1 to 3 feet building to 3 to 5 feet in the late evening and overnight. Waves occasionally around 7 feet. .SATURDAY...South winds 20 to 25 knots with gusts to 30 knots veering to the west with gusts to 30 knots in the late morning and afternoon. Becoming partly cloudy early in the afternoon. Rain showers and a chance of thunderstorms early in the morning, then showers likely in the late morning and early afternoon. A chance of showers early in the afternoon. Waves 3 to 5 feet. Waves occasionally around 7 feet. .SATURDAY NIGHT...West winds 20 to 25 knots diminishing to 15 to 20 knots after midnight. Partly cloudy. A chance of showers early in the evening. Waves 2 to 4 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-172200- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 959 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY EVENING... .REST OF TODAY...Light and variable winds becoming east 10 to 15 knots. Partly cloudy. Areas of fog late in the morning. Waves 2 feet or less. .TONIGHT...Southeast winds 15 to 20 knots becoming south 20 to 25 knots with gusts to 30 knots in the late evening and overnight. Partly cloudy until early morning, then mostly cloudy with showers likely and a chance of thunderstorms after midnight. Waves 1 to 3 feet building to 3 to 5 feet in the late evening and overnight. Waves occasionally around 7 feet. .SATURDAY...Southwest winds 20 to 25 knots with gusts to 30 knots becoming west 15 to 20 knots early in the afternoon. Becoming partly cloudy early in the afternoon. Rain showers and a slight chance of thunderstorms early in the morning, then showers likely in the late morning and early afternoon. A chance of showers early in the afternoon. Waves 3 to 5 feet. Waves occasionally around 6 feet. .SATURDAY NIGHT...West winds 15 to 20 knots. Partly cloudy. A chance of showers early in the evening. Waves 3 to 5 feet. Waves occasionally around 7 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-172200- Port Austin to Harbor Beach MI- 959 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON... .REST OF TODAY...Light and variable winds becoming southeast 10 to 15 knots. Mostly cloudy late in the morning becoming partly cloudy. Areas of fog late in the morning. Waves 2 feet or less. .TONIGHT...Southeast winds 15 to 20 knots becoming south 20 to 25 knots with gusts to 30 knots in the late evening and overnight. Partly cloudy until early morning, then mostly cloudy with a chance of showers and thunderstorms after midnight. Waves 1 to 3 feet building to 3 to 5 feet in the late evening and overnight. Waves occasionally around 7 feet. .SATURDAY...South winds 20 to 25 knots becoming west 15 to 20 knots in the late morning and afternoon. Becoming partly cloudy early in the afternoon. A chance of thunderstorms early in the morning. Rain showers until late afternoon, then a chance of showers early in the afternoon. Waves 4 to 6 feet. Waves occasionally around 8 feet. .SATURDAY NIGHT...Northwest winds 15 to 20 knots. Partly cloudy. A chance of showers early in the evening. Waves 3 to 5 feet. Waves occasionally around 7 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-172200- Harbor Beach to Port Sanilac MI- 959 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON... .REST OF TODAY...Light and variable winds becoming southeast 5 to 10 knots in the afternoon. Mostly cloudy late in the morning becoming partly cloudy. Areas of fog late in the morning. Waves 2 feet or less. .TONIGHT...Southeast winds 10 to 15 knots becoming south 20 to 25 knots. Partly cloudy until early morning, then mostly cloudy with a chance of showers and thunderstorms after midnight. Waves 1 to 3 feet building to 3 to 5 feet in the late evening and overnight. Waves occasionally around 7 feet. .SATURDAY...South winds 20 to 25 knots with gusts to 30 knots becoming southwest 15 to 20 knots in the late morning and early afternoon, then veering to the west early in the afternoon. A chance of thunderstorms early in the morning. Rain showers until late afternoon, then a chance of showers early in the afternoon. Waves 4 to 6 feet subsiding to 2 to 4 feet early in the afternoon. Waves occasionally around 8 feet. .SATURDAY NIGHT...West winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Partly cloudy. A chance of showers early in the evening. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-172200- Port Sanilac to Port Huron MI- 959 AM EDT Fri Apr 17 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY AFTERNOON... .REST OF TODAY...Light and variable winds becoming southeast 5 to 10 knots late in the afternoon. Mostly cloudy late in the morning becoming partly cloudy. Areas of fog late in the morning. Waves 2 feet or less. .TONIGHT...Southeast winds 10 to 15 knots becoming south 20 to 25 knots. Partly cloudy until early morning, then mostly cloudy with showers likely and a chance of thunderstorms after midnight. Waves 1 to 3 feet building to 3 to 5 feet in the late evening and overnight. Waves occasionally around 7 feet. .SATURDAY...South winds 20 to 25 knots becoming west 15 to 20 knots early in the afternoon. A chance of thunderstorms early in the morning. Rain showers until late afternoon, then a chance of showers early in the afternoon. Waves 4 to 6 feet subsiding to 1 to 3 feet early in the afternoon. Waves occasionally around 8 feet. .SATURDAY NIGHT...West winds 15 to 20 knots. Partly cloudy. A chance of showers early in the evening. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-172200- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 959 AM EDT Fri Apr 17 2026 .REST OF TODAY...Light and variable winds becoming east 5 to 10 knots in the afternoon. Partly cloudy. Areas of fog late in the morning. Waves 2 feet or less. .TONIGHT...Southeast winds 10 to 15 knots becoming south 15 to 20 knots after midnight. Partly cloudy early in the evening, then a slight chance of showers and thunderstorms in the late evening and early morning. Rain showers and a chance of thunderstorms after midnight. Waves 1 to 3 feet. .SATURDAY...Southwest winds 15 to 20 knots veering to the west early in the afternoon. Rain showers and a chance of thunderstorms until late afternoon, then a chance of showers early in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. .SATURDAY NIGHT...West winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Mostly cloudy early in the evening becoming partly cloudy. A chance of showers early in the evening. Waves 1 to 3 feet. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 51 degrees. $$ TF You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes