FZUS53 KDTX 211348 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 948 AM 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. LHZ422-212200- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 948 AM EDT Sat Mar 21 2026 .REST OF TODAY...Light and variable winds becoming southeast 10 to 15 knots. Mostly cloudy. Waves 2 feet or less. .TONIGHT...Southeast winds 10 to 15 knots becoming northwest 5 to 10 knots after midnight. Partly cloudy early in the evening becoming mostly cloudy. Waves 2 feet or less. .SUNDAY...North winds 10 to 15 knots increasing to 15 to 20 knots early in the afternoon. Mostly cloudy. A chance of showers until late afternoon. Waves 1 to 3 feet. .SUNDAY NIGHT...North winds 15 to 20 knots. Mostly cloudy early in the evening becoming partly cloudy. Waves 1 to 3 feet. Wave heights are for ice free areas. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-212200- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 948 AM EDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... .REST OF TODAY...Southeast winds 5 to 10 knots increasing to 10 to 15 knots late in the afternoon. Cloudy. A slight chance of light rain in the afternoon. Waves 2 feet or less. .TONIGHT...Southeast winds 10 to 15 knots veering to the northwest after midnight. Mostly cloudy. A slight chance of showers after midnight. Waves 1 to 3 feet. .SUNDAY...Northwest winds 10 to 15 knots becoming north 15 to 20 knots in the late morning and afternoon. Mostly cloudy. A chance of showers until late afternoon. Waves 1 to 3 feet building to 4 to 6 feet in the late morning and afternoon. Waves occasionally around 8 feet. .SUNDAY NIGHT...North winds 15 to 20 knots. Partly cloudy early in the evening becoming mostly cloudy. Waves 4 to 6 feet. Waves occasionally around 7 feet. Small Craft Advisory conditions are expected to continue beyond the forecast period. Please refer to the Open Lakes Forecast for more information. Wave heights are for ice free areas. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-212200- Port Austin to Harbor Beach MI- 948 AM EDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... .REST OF TODAY...Southeast winds 5 to 10 knots increasing to 10 to 15 knots late in the afternoon. Cloudy. A slight chance of light rain in the afternoon. Waves 2 feet or less. .TONIGHT...Southeast winds 10 to 15 knots veering to the southwest after midnight. Mostly cloudy. A chance of showers after midnight. Waves 1 to 3 feet. .SUNDAY...Northwest winds 10 to 15 knots becoming north 15 to 20 knots in the late morning and afternoon. Mostly cloudy. A chance of showers until late 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. Partly cloudy early in the evening becoming mostly cloudy. Waves 4 to 6 feet. Waves occasionally around 7 feet. Small Craft Advisory conditions are expected to continue beyond the forecast period. Please refer to the Open Lakes Forecast for more information. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-212200- Harbor Beach to Port Sanilac MI- 948 AM EDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... .REST OF TODAY...Southeast winds 5 to 10 knots increasing to 10 to 15 knots late in the afternoon. Mostly cloudy. Waves 2 feet or less. .TONIGHT...Southeast winds 10 to 15 knots veering to the southwest after midnight. Mostly cloudy until early morning becoming partly cloudy. Waves 1 to 3 feet. .SUNDAY...Northwest winds 5 to 10 knots becoming north 15 to 20 knots. Mostly cloudy. A chance of showers early in the morning, then showers likely in the late morning and early afternoon. Waves 1 to 3 feet building to 3 to 5 feet early in the afternoon. Waves occasionally around 7 feet. .SUNDAY NIGHT...North winds 20 to 25 knots diminishing to 15 to 20 knots after midnight. Mostly cloudy. A chance of showers early in the evening. Waves 5 to 7 feet. Waves occasionally around 10 feet. Small Craft Advisory conditions are expected to continue beyond the forecast period. Please refer to the Open Lakes Forecast for more information. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-212200- Port Sanilac to Port Huron MI- 948 AM EDT Sat Mar 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH MONDAY AFTERNOON... .REST OF TODAY...Southeast winds 5 to 10 knots. Mostly cloudy. Waves 2 feet or less. .TONIGHT...South winds 10 to 15 knots veering to the southwest after midnight. Mostly cloudy. Waves 1 to 3 feet. .SUNDAY...Northwest winds 5 to 10 knots becoming north 10 to 15 knots in the late morning and early afternoon, then increasing to 15 to 20 knots early in the afternoon. Mostly cloudy. Light showers likely until late afternoon, then a chance of showers early in the afternoon. Waves 2 feet or less 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. A chance of showers early in the evening. Waves 5 to 7 feet. Waves occasionally around 10 feet. Small Craft Advisory conditions are expected to continue beyond the forecast period. Please refer to the Open Lakes Forecast for more information. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-212200- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 948 AM EDT Sat Mar 21 2026 .REST OF TODAY...Southeast winds 5 to 10 knots. Partly cloudy. Waves 2 feet or less. .TONIGHT...Southeast winds 5 to 10 knots becoming south 10 to 15 knots in the late evening and early morning, then veering to the southwest after midnight. Partly cloudy. Waves 2 feet or less. .SUNDAY...West winds 5 to 10 knots veering to the northwest in the late morning and early afternoon, then becoming north 10 to 15 knots early in the afternoon. Partly cloudy with a chance of showers and a slight chance of thunderstorms until late afternoon, then mostly cloudy with showers likely early in the afternoon. Waves 2 feet or less. .SUNDAY NIGHT...North winds 10 to 15 knots. Mostly cloudy with a chance of showers early in the evening, then mostly cloudy with a chance of light rain and snow showers in the late evening and early morning. Partly cloudy after midnight. Waves 1 to 3 feet. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 36 degrees. $$ AM You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes