FZUS53 KDTX 120809 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 409 AM EDT Thu Mar 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. LHZ422-121615- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 409 AM EDT Thu Mar 12 2026 ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH LATE FRIDAY NIGHT... .TODAY...West winds 15 to 20 knots diminishing to 10 to 15 knots late in the morning, then increasing to 15 to 20 knots early in the afternoon diminishing to 10 to 15 knots late in the afternoon. Mostly sunny. Waves 2 feet or less. .TONIGHT...West winds 10 to 15 knots backing to the south in the late evening and early morning, then increasing to 30 knots with gusts to 40 knot gales after midnight. Partly cloudy until early morning, then mostly cloudy with snow likely after midnight. Snow may be heavy at times after midnight. Waves 2 feet or less building to 2 to 4 feet after midnight. .FRIDAY...South gales to 35 knot gales becoming southwest to 30 knots in the late morning and afternoon. Gusts to 45 knot gales. Mostly cloudy. Light snow and light rain likely until late afternoon, then a chance of light snow early in the afternoon. Waves 2 to 4 feet. .FRIDAY NIGHT...West winds to 30 knots with gusts to 40 knot gales becoming northwest 20 to 25 knots with gusts to 35 knot gales in the late evening and overnight. Mostly cloudy with a chance of light snow early in the evening, then partly cloudy in the late evening and overnight. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. Wave heights are for ice free areas. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-121615- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 409 AM EDT Thu Mar 12 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH LATE FRIDAY NIGHT... .TODAY...Northwest winds 20 to 25 knots becoming west 10 to 15 knots. Mostly sunny in the morning becoming partly cloudy. Waves 4 to 6 feet subsiding to 2 to 4 feet late in the afternoon. Waves occasionally around 8 feet. .TONIGHT...West winds 5 to 10 knots becoming south 10 to 15 knots in the late evening and early morning, then becoming southeast to 30 knots with gusts to 40 knot gales after midnight. Partly cloudy until early morning, then snow after midnight. Snow may be heavy at times after midnight. Waves 1 to 3 feet building to 4 to 6 feet after midnight. Waves occasionally around 8 feet. .FRIDAY...South gales to 35 knot gales with gusts to 45 knot gales becoming southwest to 30 knots with gusts to 35 knot gales in the late morning and afternoon. Light snow early in the morning, then light rain and snow likely in the late morning and early afternoon. A chance of light snow early in the afternoon. Waves 6 to 9 feet. Waves occasionally around 12 feet. .FRIDAY NIGHT...West winds to 30 knots. Gusts to 40 knot gales until early morning. Mostly cloudy with a chance of light snow early in the evening, then partly cloudy in the late evening and overnight. Freezing spray after midnight. Waves 6 to 9 feet. Waves occasionally around 12 feet. Wave heights are for ice free areas. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-121615- Port Austin to Harbor Beach MI- 409 AM EDT Thu Mar 12 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH LATE FRIDAY NIGHT... .TODAY...Northwest winds 20 to 25 knots with gusts to 30 knots diminishing to 10 to 15 knots. Mostly sunny in the morning becoming partly cloudy. Waves 6 to 9 feet subsiding to 3 to 5 feet in the afternoon. Waves occasionally around 12 feet. .TONIGHT...Northwest winds 5 to 10 knots becoming south 10 to 15 knots in the late evening and early morning, then increasing to 20 to 25 knots with gusts to 35 knot gales after midnight. Mostly clear until early morning becoming mostly cloudy. A chance of snow after midnight. Snow may be heavy at times after midnight. Waves 1 to 3 feet building to 3 to 5 feet after midnight. Waves occasionally around 7 feet. .FRIDAY...South winds to 30 knots veering to the southwest early in the afternoon. Gusts to 40 knot gales. Light snow early in the morning, then light rain and snow likely in the late morning and early afternoon. A chance of light snow early in the afternoon. Waves 6 to 9 feet. Waves occasionally around 12 feet. .FRIDAY NIGHT...West gales to 35 knot gales becoming northwest to 30 knots in the late evening and overnight. Gusts to 40 knot gales. Mostly cloudy. A chance of light snow early in the evening. Freezing spray after midnight. Waves 8 to 12 feet. Waves occasionally around 15 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-121615- Harbor Beach to Port Sanilac MI- 409 AM EDT Thu Mar 12 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH LATE FRIDAY NIGHT... .TODAY...Northwest winds 20 to 25 knots with gusts to 30 knots diminishing to 15 to 20 knots with gusts to 30 knots in the late morning and afternoon. Mostly sunny in the morning becoming partly cloudy. Waves 4 to 6 feet subsiding to 2 to 4 feet late in the afternoon. Waves occasionally around 8 feet. .TONIGHT...Northwest winds 10 to 15 knots backing to the southwest in the late evening and early morning, then becoming south to 30 knots with gusts to 35 knot gales after midnight. Mostly clear until early morning. Snow after midnight. Waves 1 to 3 feet building to 4 to 6 feet after midnight. Waves occasionally around 8 feet. .FRIDAY...South gales to 35 knot gales becoming southwest to 30 knots in the late morning and afternoon. Gusts to 45 knot gales. Snow until late afternoon. Light rain in the late morning and early afternoon, then a chance of light rain and snow early in the afternoon. Waves 8 to 12 feet subsiding to 4 to 6 feet early in the afternoon. Waves occasionally around 15 feet. .FRIDAY NIGHT...West gales to 35 knot gales becoming northwest to 30 knots in the late evening and overnight. Gusts to 40 knot gales. Mostly cloudy early in the evening becoming partly cloudy. A chance of light rain and snow early in the evening. Waves 5 to 7 feet. Waves occasionally around 10 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-121615- Port Sanilac to Port Huron MI- 409 AM EDT Thu Mar 12 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EDT THIS AFTERNOON... ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH LATE FRIDAY NIGHT... .TODAY...Northwest winds 20 to 25 knots diminishing to 15 to 20 knots in the late morning and afternoon. Mostly sunny in the morning becoming partly cloudy. Waves 3 to 5 feet subsiding to 2 to 4 feet late in the afternoon. Waves occasionally around 7 feet. .TONIGHT...Northwest winds 10 to 15 knots becoming southwest 5 to 10 knots in the late evening and early morning, then becoming south 20 to 25 knots with gusts to 30 knots after midnight. Partly cloudy until early morning. Light snow after midnight. Waves 1 to 3 feet building to 3 to 5 feet after midnight. Waves occasionally around 7 feet. .FRIDAY...South gales to 35 knot gales becoming southwest to 30 knots in the late morning and afternoon. Gusts to 40 knot gales. Snow until late afternoon. Light rain likely in the late morning and early afternoon, then a chance of light snow early in the afternoon. Waves 6 to 9 feet subsiding to 4 to 6 feet early in the afternoon. Waves occasionally around 12 feet. .FRIDAY NIGHT...West winds to 30 knots with gusts to 40 knot gales. Mostly cloudy early in the evening becoming partly cloudy. A chance of light snow early in the evening. Waves 4 to 6 feet. Waves occasionally around 7 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-121615- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 409 AM EDT Thu Mar 12 2026 ...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH LATE FRIDAY NIGHT... ...LOW WATER ADVISORY IN EFFECT FROM 4 AM FRIDAY TO 4 AM EDT SATURDAY... .TODAY...West winds 10 to 15 knots. Mostly sunny. Waves 2 feet or less. .TONIGHT...West winds 10 to 15 knots becoming south 5 to 10 knots in the late evening and early morning, then increasing to 20 to 25 knots with gusts to 35 knot gales after midnight. Mostly clear until early morning, then mostly cloudy with a chance of light rain and snow after midnight. Waves 2 feet or less building to 3 to 5 feet after midnight. Waves occasionally around 7 feet. .FRIDAY...Southwest winds to 30 knots veering to the west early in the afternoon. Gusts to 45 knot gales. Mostly cloudy with a chance of light rain and snow early in the morning, then partly cloudy with a chance of light rain in the late morning and early afternoon. Partly cloudy early in the afternoon. Waves 5 to 7 feet. Waves occasionally around 10 feet. .FRIDAY NIGHT...West winds to 30 knots with gusts to 40 knot gales becoming northwest 15 to 20 knots. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. Waves occasionally around 7 feet. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 39 degrees. $$ TF You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes