FZUS53 KDTX 120738 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 338 AM EDT Fri Jun 12 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. LHZ422-121600- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 338 AM EDT Fri Jun 12 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .TODAY...West winds 20 to 25 knots diminishing to 15 to 20 knots in the late morning and afternoon. Mostly sunny. Waves 3 to 5 feet subsiding to 1 to 3 feet in the late morning and afternoon. .TONIGHT...West winds 15 to 20 knots becoming southwest 10 to 15 knots in the late evening and overnight. Clear. Waves 1 to 3 feet. .SATURDAY...Southwest winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. Sunny. Waves 1 to 3 feet building to 2 to 4 feet early in the afternoon. .SATURDAY NIGHT...West winds 15 to 20 knots veering to the northwest after midnight. Partly cloudy with a chance of showers and thunderstorms until early morning, then showers after midnight. 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. $$ LHZ421-121600- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 338 AM EDT Fri Jun 12 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .TODAY...West winds 20 to 25 knots becoming southwest 15 to 20 knots in the late morning and afternoon. Mostly sunny. Waves 3 to 5 feet subsiding to 2 to 4 feet in the afternoon. Waves occasionally around 7 feet. .TONIGHT...Southwest winds 15 to 20 knots. Clear. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. .SATURDAY...Southwest winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. Mostly sunny. Waves 2 to 4 feet. .SATURDAY NIGHT...West winds 15 to 20 knots veering to the north after midnight. Partly cloudy with showers likely and a chance of thunderstorms until early morning, then showers after midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-121600- Port Austin to Harbor Beach MI- 338 AM EDT Fri Jun 12 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY... .TODAY...West winds 15 to 20 knots. Mostly sunny. Waves 3 to 5 feet subsiding to 2 to 4 feet in the afternoon. Waves occasionally around 7 feet. .TONIGHT...Southwest winds 10 to 15 knots. Clear. Waves 1 to 3 feet. .SATURDAY...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 building to 2 to 4 feet early in the afternoon. .SATURDAY NIGHT...Southwest winds 15 to 20 knots becoming west 10 to 15 knots in the late evening and early morning, then veering to the northwest after midnight. Partly cloudy with a chance of showers and thunderstorms until early morning, then showers after midnight. 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. $$ LHZ442-121600- Harbor Beach to Port Sanilac MI- 338 AM EDT Fri Jun 12 2026 .TODAY...West winds 15 to 20 knots diminishing to 10 to 15 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 3 feet. .TONIGHT...West winds 10 to 15 knots. Clear. Waves 2 feet or less. .SATURDAY...Southwest winds 10 to 15 knots. Sunny. Waves 2 feet or less. .SATURDAY NIGHT...Southwest winds 10 to 15 knots veering to the northwest after midnight. Mostly clear early in the evening becoming mostly cloudy. A chance of showers until early morning. A chance of thunderstorms in the late evening and early morning, then showers likely after midnight. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-121600- Port Sanilac to Port Huron MI- 338 AM EDT Fri Jun 12 2026 .TODAY...West winds 15 to 20 knots diminishing to 10 to 15 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 3 feet. .TONIGHT...West winds 10 to 15 knots. Clear. Waves 2 feet or less. .SATURDAY...Southwest winds 10 to 15 knots. Sunny. Waves 2 feet or less. .SATURDAY NIGHT...Southwest winds 10 to 15 knots veering to the west after midnight. Partly cloudy with a chance of showers until early morning, then mostly cloudy with showers likely and a chance of thunderstorms after midnight. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-121600- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 338 AM EDT Fri Jun 12 2026 .TODAY...West winds 15 to 20 knots diminishing to 10 to 15 knots in the afternoon. Mostly sunny. Waves 1 to 3 feet. .TONIGHT...West winds 10 to 15 knots diminishing to 5 to 10 knots in the late evening and overnight. Clear. Waves 2 feet or less. .SATURDAY...Southwest winds 5 to 10 knots increasing to 10 to 15 knots in the late morning and afternoon. Sunny. Waves 2 feet or less. .SATURDAY NIGHT...Southwest winds 10 to 15 knots. Partly cloudy. A chance of showers after midnight. Waves 1 to 3 feet. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 73 degrees. $$ TF You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes