FZUS53 KDTX 211936 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 336 PM EDT Sat Mar 21 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. LHZ422-220345- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 336 PM EDT Sat Mar 21 2026 .TONIGHT...Southeast winds 10 to 15 knots veering to the southwest after midnight, then becoming northwest 5 to 10 knots early in the morning. Partly cloudy in the evening becoming mostly cloudy. Waves 2 feet or less. .SUNDAY...North winds 10 to 15 knots becoming northeast 15 to 20 knots early in the 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. Waves 1 to 3 feet. .SUNDAY NIGHT...North winds 20 to 25 knots diminishing to 15 to 20 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. .MONDAY...North winds 10 to 15 knots diminishing to 5 to 10 knots early in the afternoon. Partly cloudy. Waves 2 feet or less. Wave heights are for ice free areas. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-220345- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 336 PM EDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... .TONIGHT...Southeast winds 15 to 20 knots becoming south 10 to 15 knots after midnight, then veering to the northwest early in the morning. Partly cloudy in the evening becoming mostly cloudy. Waves 1 to 3 feet. .SUNDAY...North winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. Mostly cloudy. A chance of light rain early in the morning, then a slight chance of light rain in the late morning and early afternoon. Waves 1 to 3 feet building to 4 to 6 feet in the late morning and afternoon. Waves occasionally around 8 feet. .SUNDAY NIGHT...North winds 15 to 20 knots. Partly cloudy early in the evening becoming mostly cloudy. Waves 4 to 6 feet. Waves occasionally around 7 feet. .MONDAY...North winds 10 to 15 knots. Mostly cloudy early in the morning becoming partly cloudy. Waves 3 to 5 feet subsiding to 2 to 4 feet early in the afternoon. Waves occasionally around 7 feet. Wave heights are for ice free areas. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-220345- Port Austin to Harbor Beach MI- 336 PM EDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... .TONIGHT...Southeast winds 10 to 15 knots increasing to 15 to 20 knots this evening, then becoming south 10 to 15 knots after midnight veering to the west early in the morning. Mostly cloudy. Waves 1 to 3 feet building to 2 to 4 feet in the late evening and early morning, then subsiding to 1 to 3 feet early in the morning. .SUNDAY...Northwest winds 10 to 15 knots becoming north 15 to 20 knots in the late morning and 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. Waves 1 to 3 feet building to 3 to 5 feet in the late morning and afternoon. Waves occasionally around 7 feet. .SUNDAY NIGHT...North winds 15 to 20 knots. Mostly cloudy. Waves 4 to 6 feet. Waves occasionally around 7 feet. .MONDAY...North winds 10 to 15 knots. Mostly cloudy until late afternoon becoming partly cloudy. Waves 3 to 5 feet. Waves occasionally around 7 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-220345- Harbor Beach to Port Sanilac MI- 336 PM EDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... .TONIGHT...Southeast winds 15 to 20 knots becoming south 10 to 15 knots after midnight, then veering to the west early in the morning. Mostly cloudy. Waves 1 to 3 feet building to 2 to 4 feet in the late evening and early morning, then subsiding to 1 to 3 feet early in the morning. .SUNDAY...Northwest winds 5 to 10 knots becoming north 15 to 20 knots. Mostly cloudy. A chance of light rain until late afternoon. Waves 1 to 3 feet building to 3 to 5 feet early in the afternoon. Waves occasionally around 7 feet. .SUNDAY NIGHT...North winds 20 to 25 knots diminishing to 15 to 20 knots after midnight. Mostly cloudy. Waves 4 to 6 feet. Waves occasionally around 7 feet. .MONDAY...North winds 15 to 20 knots diminishing to 10 to 15 knots in the late morning and afternoon. Mostly cloudy until late afternoon becoming partly cloudy. Waves 3 to 5 feet. Waves occasionally around 7 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-220345- Port Sanilac to Port Huron MI- 336 PM EDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... .TONIGHT...Southeast winds 15 to 20 knots becoming south 10 to 15 knots in the late evening and early morning, then veering to the southwest early in the morning. Mostly cloudy. Waves 1 to 3 feet. .SUNDAY...Northwest winds 5 to 10 knots becoming north 15 to 20 knots. Mostly cloudy. A chance of light rain until late afternoon, then a slight chance of light rain early in the afternoon. Waves 1 to 3 feet building to 3 to 5 feet early in the afternoon. Waves occasionally around 7 feet. .SUNDAY NIGHT...North winds 20 to 25 knots diminishing to 15 to 20 knots after midnight. Mostly cloudy. Waves 5 to 7 feet. Waves occasionally around 10 feet. .MONDAY...North winds 15 to 20 knots diminishing to 10 to 15 knots early in the afternoon. Mostly cloudy until late afternoon becoming partly cloudy. Waves 3 to 5 feet. Waves occasionally around 7 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-220345- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 336 PM EDT Sat Mar 21 2026 .TONIGHT...Southeast winds 5 to 10 knots becoming south 10 to 15 knots in the late evening and early morning, then veering to the southwest early in the morning. Partly cloudy. Waves 2 feet or less. .SUNDAY...West winds 5 to 10 knots veering to the north in the late morning and early afternoon, then increasing to 10 to 15 knots early in the afternoon. Partly cloudy with a slight chance of light rain and thunderstorms until late afternoon, then mostly cloudy with a chance of light rain early in the afternoon. Waves 2 feet or less. .SUNDAY NIGHT...North winds 10 to 15 knots. Mostly cloudy until early morning becoming partly cloudy. A chance of light rain early in the evening, then a chance of light rain and snow in the late evening and early morning. Waves 1 to 3 feet. .MONDAY...North winds 10 to 15 knots diminishing to 5 to 10 knots in the late morning and afternoon. Partly cloudy. Waves 2 feet or less. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 36 degrees. $$ KDK You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes