FZUS53 KDTX 301325 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 925 AM EDT Mon Mar 30 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. LHZ422-302130- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 925 AM EDT Mon Mar 30 2026 .REST OF TODAY...Southwest winds 10 to 15 knots diminishing to 5 to 10 knots early in the afternoon, then backing to the east late in the afternoon. Partly cloudy late in the morning becoming mostly sunny. Waves 2 feet or less. .TONIGHT...Northeast winds 10 to 15 knots. Mostly cloudy. A slight chance of light rain in the late evening and early morning. A chance of light rain and thunderstorms after midnight. Waves 2 feet or less. .TUESDAY...East winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and early afternoon, then becoming southwest 20 to 25 knots with gusts to 30 knots early in the afternoon. Light rain likely and a chance of thunderstorms until late afternoon, then rain and a chance of thunderstorms early in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet early in the afternoon. A Small Craft Advisory may be needed. .TUESDAY NIGHT...West winds 20 to 25 knots with gusts to 30 knots becoming northwest 15 to 20 knots in the late evening and overnight. Rain and a chance of thunderstorms early in the evening, then a chance of light rain in the late evening and early morning. Waves 2 to 4 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-302130- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 925 AM EDT Mon Mar 30 2026 .REST OF TODAY...Southwest winds 10 to 15 knots diminishing to 5 to 10 knots early in the afternoon, then backing to the east late in the afternoon. Partly cloudy late in the morning becoming mostly sunny. Waves 2 feet or less. .TONIGHT...Northeast winds 10 to 15 knots. Mostly cloudy. A slight chance of light rain in the late evening and early morning. Light rain likely and a chance of thunderstorms after midnight. Waves 2 feet or less. .TUESDAY...East winds 10 to 15 knots becoming northeast 15 to 20 knots in the late morning and early afternoon, then backing to the southwest early in the afternoon. Rain likely and a chance of thunderstorms until late afternoon, then rain and a chance of thunderstorms early in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet early in the afternoon. .TUESDAY NIGHT...Northwest winds 15 to 20 knots. Rain and a chance of thunderstorms early in the evening, then a chance of light rain in the late evening and early morning. Waves 3 to 5 feet. Waves occasionally around 7 feet. A Small Craft Advisory may be needed. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-302130- Port Austin to Harbor Beach MI- 925 AM EDT Mon Mar 30 2026 .REST OF TODAY...Southwest winds 10 to 15 knots becoming west 5 to 10 knots early in the afternoon, then veering to the northeast late in the afternoon. Partly cloudy. Waves 2 feet or less. .TONIGHT...East winds 5 to 10 knots. Partly cloudy early in the evening, then mostly cloudy with a chance of light rain in the late evening and early morning. Mostly cloudy with a chance of light rain and thunderstorms after midnight. Waves 2 feet or less. .TUESDAY...Southeast winds 5 to 10 knots becoming south 10 to 15 knots in the late morning and early afternoon, then becoming southwest 15 to 20 knots early in the afternoon. Rain likely and a chance of thunderstorms until late afternoon, then rain and a chance of thunderstorms early in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet early in the afternoon. .TUESDAY NIGHT...West winds 15 to 20 knots veering to the northwest after midnight. Rain and a chance of thunderstorms early in the evening, then a chance of light rain in the late evening and early morning. Waves 3 to 5 feet. Waves occasionally around 7 feet. A Small Craft Advisory may be needed. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-302130- Harbor Beach to Port Sanilac MI- 925 AM EDT Mon Mar 30 2026 .REST OF TODAY...Southwest winds 10 to 15 knots diminishing to 5 to 10 knots early in the afternoon, then backing to the east late in the afternoon. Partly cloudy. Waves 2 feet or less. .TONIGHT...East winds 5 to 10 knots. Partly cloudy early in the evening, then mostly cloudy with a slight chance of light rain in the late evening and early morning. Mostly cloudy with a chance of light rain and thunderstorms after midnight. Waves 2 feet or less. .TUESDAY...South winds 10 to 15 knots becoming southwest 15 to 20 knots early in the afternoon. Light rain likely and a chance of thunderstorms until late afternoon, then rain and a chance of thunderstorms early in the afternoon. Waves 1 to 3 feet. .TUESDAY NIGHT...Southwest winds 15 to 20 knots veering to the northwest in the late evening and overnight. Mostly cloudy. A chance of thunderstorms early in the evening. Light rain likely until early morning. Waves 1 to 3 feet building to 3 to 5 feet after midnight. Waves occasionally around 7 feet. A Small Craft Advisory may be needed. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-302130- Port Sanilac to Port Huron MI- 925 AM EDT Mon Mar 30 2026 .REST OF TODAY...Southwest winds 10 to 15 knots diminishing to 5 to 10 knots in the afternoon. Mostly cloudy late in the morning becoming partly cloudy. Waves 2 feet or less. .TONIGHT...Southeast winds 5 to 10 knots backing to the northeast in the late evening and early morning, then becoming south 10 to 15 knots after midnight. Mostly cloudy. A slight chance of light rain early in the evening, then a chance of light rain in the late evening and overnight. A chance of thunderstorms after midnight. Waves 2 feet or less. .TUESDAY...South winds 10 to 15 knots becoming southwest 15 to 20 knots in the late morning and afternoon. A chance of thunderstorms early in the morning. Light rain likely until late afternoon, then rain and a chance of thunderstorms early in the afternoon. Waves 1 to 3 feet. .TUESDAY NIGHT...Southwest winds 15 to 20 knots veering to the northwest in the late evening and overnight. Rain in the evening. A chance of thunderstorms. Light rain likely after midnight. Waves 2 to 4 feet building to 3 to 5 feet after midnight. Waves occasionally around 7 feet. A Small Craft Advisory may be needed. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-302130- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 925 AM EDT Mon Mar 30 2026 .REST OF TODAY...Southwest winds 10 to 15 knots. Partly cloudy. A slight chance of light rain and thunderstorms in the afternoon. Waves 1 to 3 feet. .TONIGHT...Southwest winds 10 to 15 knots increasing to 15 to 20 knots after midnight. Mostly cloudy early in the evening becoming partly cloudy. Light rain likely in the evening. A chance of thunderstorms. A chance of light rain after midnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .TUESDAY...Southwest winds 15 to 20 knots. Mostly cloudy. A chance of thunderstorms early in the morning. A chance of light rain until late afternoon, then light rain likely and a chance of thunderstorms early in the afternoon. Waves 2 to 4 feet. .TUESDAY NIGHT...Southwest winds 15 to 20 knots veering to the northwest after midnight. Rain and a chance of thunderstorms until early morning, then light rain likely after midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 39 degrees. $$ SC You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes