FZUS53 KDTX 151949 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 349 PM EDT Thu Oct 15 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. LHZ422-160400- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 349 PM EDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE FRIDAY NIGHT... .TONIGHT...Southeast winds 15 to 20 knots diminishing to 10 to 15 knots after midnight, then becoming southwest 15 to 20 knots early in the morning. Rain in the evening, then light rain likely after midnight. Waves 1 to 3 feet. .FRIDAY...Northwest winds 20 to 25 knots becoming north to 30 knots early in the afternoon. Mostly cloudy with a chance of light rain. Waves 1 to 3 feet building to 2 to 4 feet early in the afternoon. .FRIDAY NIGHT...North winds to 30 knots with gusts to 35 knot gales. Partly cloudy until early morning then clearing. Waves 3 to 5 feet. Waves occasionally around 7 feet. .SATURDAY...North winds 15 to 20 knots becoming northwest 10 to 15 knots in the late morning and early afternoon, then becoming southwest 15 to 20 knots early in the afternoon. Sunny. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-160400- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 349 PM EDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE FRIDAY NIGHT... .TONIGHT...Southeast winds 15 to 20 knots. Rain in the evening, then a chance of rain after midnight. Waves 1 to 3 feet. .FRIDAY...West winds 20 to 25 knots becoming northwest to 30 knots in the late morning and early afternoon, then becoming north gales to 35 knot gales early in the afternoon. Mostly cloudy. A slight chance of light rain early in the morning, then a chance of light rain in the late morning and afternoon. A slight chance of waterspouts in the late morning and afternoon. Waves 3 to 5 feet building to 6 to 9 feet early in the afternoon. Waves occasionally around 12 feet. .FRIDAY NIGHT...North winds to 35 knot gales diminishing to 30 knots after midnight. Partly cloudy. A chance of light rain early in the evening. Waves 8 to 12 feet. Waves occasionally around 15 feet. .SATURDAY...North winds 20 to 25 knots becoming northwest 10 to 15 knots in the late morning and early afternoon, then becoming southwest 20 to 25 knots early in the afternoon. Sunny. Waves 5 to 7 feet subsiding to 1 to 3 feet. Waves occasionally around 10 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-160400- Port Austin to Harbor Beach MI- 349 PM EDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE FRIDAY NIGHT... .TONIGHT...Southeast winds 15 to 20 knots becoming south 10 to 15 knots early in the morning. Rain. Waves 1 to 3 feet building to 3 to 5 feet in the late evening and overnight. Waves occasionally around 7 feet. .FRIDAY...West winds 20 to 25 knots becoming northwest to 30 knots in the late morning and early afternoon, then becoming north gales to 35 knot gales early in the afternoon. Light rain likely until late afternoon, then light rain early in the afternoon. Waves 3 to 5 feet building to 8 to 12 feet. Waves occasionally around 15 feet. .FRIDAY NIGHT...North winds to 35 knot gales with gusts to 40 knot gales diminishing to 30 knots after midnight. Mostly cloudy. A chance of light rain until early morning. Waves 10 to 14 feet. Waves occasionally around 18 feet. .SATURDAY...North winds 20 to 25 knots becoming northwest 10 to 15 knots in the late morning and early afternoon, then becoming west 15 to 20 knots earlyin the afternoon. Partly cloudy early in the morning then clearing. Waves 8 to 12 feet subsiding to 2 to 4 feet. Waves occasionally around 15 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-160400- Harbor Beach to Port Sanilac MI- 349 PM EDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE FRIDAY NIGHT... .TONIGHT...Southeast winds 15 to 20 knots veering to the southwest early in the morning. Rain. Waves 2 to 4 feet. .FRIDAY...West winds 20 to 25 knots becoming north to 30 knots with gusts to 35 knot gales early in the afternoon. A slight chance of light rain early in the morning, then light rain likely in the late morning and early afternoon. Light rain early in the afternoon. A slight chance of waterspouts early in the afternoon. Waves 3 to 5 feet building to 6 to 9 feet early in the afternoon. Waves occasionally around 12 feet. .FRIDAY NIGHT...North winds to 35 knot gales diminishing to 30 knots after midnight. Light rain early in the evening, then light rain likely in the late evening and early morning. Waves 10 to 14 feet. Waves occasionally around 18 feet. .SATURDAY...North winds 20 to 25 knots becoming northwest 15 to 20 knots in the late morning and early afternoon, then becoming west 10 to 15 knots early in the afternoon. Partly cloudy early in the morning then clearing. Waves 6 to 9 feet subsiding to 2 to 4 feet. Waves occasionally around 12 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-160400- Port Sanilac to Port Huron MI- 349 PM EDT Thu Oct 15 2026 ...GALE WARNING IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE FRIDAY NIGHT... .TONIGHT...Southeast winds 15 to 20 knots veering to the southwest early in the morning. Light rain and a slight chance of thunderstorms. Waves 2 to 4 feet building to 3 to 5 feet in the late evening and overnight. Waves occasionally around 7 feet. .FRIDAY...West winds 20 to 25 knots becoming northwest to 30 knots early in the afternoon. Mostly cloudy. A chance of light rain until late afternoon, then light rain likely early in the afternoon. A slight chance of waterspouts early in the afternoon. Waves 2 to 4 feet building to 5 to 7 feet early in the afternoon. Waves occasionally around 10 feet. .FRIDAY NIGHT...North gales to 35 knot gales diminishing to 30 knots after midnight. Becoming partly cloudy after midnight. Light rain early in the evening, then a chance of light rain in the late evening and early morning. Waves 8 to 12 feet. Waves occasionally around 15 feet. .SATURDAY...Northwest winds 20 to 25 knots becoming west 10 to 15 knots. Partly cloudy early in the morning then clearing. Waves 6 to 9 feet subsiding to 2 to 4 feet. Waves occasionally around 12 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-160400- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 349 PM EDT Thu Oct 15 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 PM EDT THIS EVENING THROUGH SATURDAY MORNING... .TONIGHT...Southeast winds 10 to 15 knots becoming southwest 20 to 25 knots with gusts to 30 knots after midnight. Light rain and a slight chance of thunderstorms in the evening, then light rain likely and a slight chance of thunderstorms after midnight. Waves 1 to 3 feet building to 3 to 5 feet after midnight. Waves occasionally around 7 feet. .FRIDAY...West winds 20 to 25 knots. Gusts to 30 knots until late afternoon. Mostly cloudy. A chance of light rain early in the morning, then a slight chance of light rain in the late morning and early afternoon. A chance of light rain early in the afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. .FRIDAY NIGHT...North winds 20 to 25 knots with gusts to 30 knots. Mostly cloudy early in the evening becoming partly cloudy. A chance of light rain early in the evening. Waves 2 to 4 feet. .SATURDAY...North winds 20 to 25 knots becoming northwest 5 to 10 knots. Sunny. Waves 2 feet or less. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 64 degrees. $$ TF You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes