FZUS53 KDTX 221959 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 359 PM EDT Sat Aug 22 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. LHZ422-230400- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 359 PM EDT Sat Aug 22 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH LATE SUNDAY NIGHT... .TONIGHT...Northwest winds 10 to 15 knots increasing to 20 to 25 knots. Partly cloudy. A chance of showers and a slight chance of thunderstorms in the evening. Waves 1 to 3 feet building to 2 to 4 feet early in the morning. .SUNDAY...Northwest winds 20 to 25 knots diminishing to 15 to 20 knots early in the afternoon. Partly cloudy. A slight chance of showers early in the afternoon. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest winds 20 to 25 knots diminishing to 15 to 20 knots after midnight. Mostly clear. Waves 2 to 4 feet. .MONDAY...Northwest winds 15 to 20 knots. Mostly sunny. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-230400- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 359 PM EDT Sat Aug 22 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH MONDAY MORNING... .TONIGHT...North winds 10 to 15 knots becoming northwest 20 to 25 knots. Mostly cloudy with showers likely and a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Waves 2 feet or less building to 3 to 5 feet in the late evening and overnight. Waves occasionally around 7 feet. .SUNDAY...Northwest winds 20 to 25 knots diminishing to 15 to 20 knots early in the afternoon. Partly cloudy. A chance of showers and a slight chance of thunderstorms early in the afternoon. Waves 4 to 6 feet. Waves occasionally around 7 feet. .SUNDAY NIGHT...Northwest winds 20 to 25 knots. Mostly cloudy early in the evening becoming partly cloudy. Waves 4 to 6 feet. Waves occasionally around 7 feet. .MONDAY...Northwest winds 20 to 25 knots diminishing to 10 to 15 knots. Mostly sunny. Waves 3 to 5 feet. Waves occasionally around 7 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-230400- Port Austin to Harbor Beach MI- 359 PM EDT Sat Aug 22 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM EDT THIS EVENING THROUGH MONDAY MORNING... .TONIGHT...Northwest winds 10 to 15 knots increasing to 20 to 25 knots. Mostly cloudy. A chance of waterspouts in the evening. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Waves 1 to 3 feet building to 5 to 7 feet. Waves occasionally around 10 feet. .SUNDAY...Northwest winds 20 to 25 knots with gusts to 30 knots diminishing to 15 to 20 knots early in the afternoon. Mostly cloudy. A slight chance of thunderstorms early in the morning. A slight chance of showers until late afternoon, then a chance of showers and a slight chance of thunderstorms early in the afternoon. Waves 6 to 9 feet. Waves occasionally around 12 feet. .SUNDAY NIGHT...Northwest winds 20 to 25 knots. Mostly cloudy. A chance of showers until early morning. Waves 6 to 9 feet. Waves occasionally around 12 feet. .MONDAY...Northwest winds 20 to 25 knots diminishing to 15 to 20 knots early in the afternoon. Partly cloudy. Waves 5 to 7 feet. Waves occasionally around 10 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-230400- Harbor Beach to Port Sanilac MI- 359 PM EDT Sat Aug 22 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH MONDAY MORNING... .TONIGHT...Northwest winds 10 to 15 knots increasing to 15 to 20 knots after midnight. Mostly cloudy. A chance of waterspouts in the evening. Light showers and thunderstorms likely in the evening, then a chance of showers and a slight chance of thunderstorms after midnight. Waves 1 to 3 feet building to 3 to 5 feet after midnight. Waves occasionally around 7 feet. .SUNDAY...Northwest winds 20 to 25 knots diminishing to 15 to 20 knots early in the afternoon. Mostly cloudy with a slight chance of showers and thunderstorms until late afternoon, then partly cloudy with a chance of showers and thunderstorms early in the afternoon. Waves 4 to 6 feet. Waves occasionally around 7 feet. .SUNDAY NIGHT...Northwest winds 15 to 20 knots. Partly cloudy. A chance of showers and thunderstorms early in the evening. Waves 4 to 6 feet. Waves occasionally around 7 feet. .MONDAY...Northwest winds 15 to 20 knots. Partly cloudy. Waves 3 to 5 feet. Waves occasionally around 7 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-230400- Port Sanilac to Port Huron MI- 359 PM EDT Sat Aug 22 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH MONDAY MORNING... .TONIGHT...Northwest winds 10 to 15 knots increasing to 15 to 20 knots after midnight. A slight chance of waterspouts in the evening. Light showers with thunderstorms likely in the evening, then a chance of showers and a slight chance of thunderstorms after midnight. Waves 1 to 3 feet building to 2 to 4 feet early in the morning. .SUNDAY...Northwest winds 15 to 20 knots. Mostly cloudy until late afternoon becoming partly cloudy. A slight chance of showers and thunderstorms in the late morning and early afternoon. A chance of showers and thunderstorms early in the afternoon. Waves 2 to 4 feet. .SUNDAY NIGHT...Northwest winds 15 to 20 knots. Partly cloudy. A chance of showers and thunderstorms early in the evening. Waves 2 to 4 feet. .MONDAY...Northwest winds 15 to 20 knots. Mostly sunny early in the morning becoming partly cloudy. Waves 2 to 4 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-230400- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 359 PM EDT Sat Aug 22 2026 .TONIGHT...Northwest winds 10 to 15 knots increasing to 15 to 20 knots early in the morning. Partly cloudy. A chance of thunderstorms and a slight chance of showers in the evening. A slight chance of waterspouts in the evening. Waves 2 feet or less. .SUNDAY...Northwest winds 15 to 20 knots diminishing to 10 to 15 knots early in the afternoon. Mostly sunny until late afternoon, then partly cloudy with a slight chance of showers early in the afternoon. Waves 1 to 3 feet. .SUNDAY NIGHT...Northwest winds 10 to 15 knots. Mostly clear. Waves 2 feet or less. .MONDAY...West winds 10 to 15 knots. Mostly sunny. Waves 2 feet or less. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 73 degrees. $$ AM You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes