Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI
Issued by NWS Detroit/Pontiac, MI
626 FZUS53 KDTX 300824 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 324 AM EST Sun Nov 30 2025 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. LHZ422-301630- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 324 AM EST Sun Nov 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING THROUGH THIS EVENING... .TODAY...South winds 10 to 15 knots becoming west 15 to 20 knots late in the morning, then becoming northwest 20 to 25 knots with gusts to 30 knots in the afternoon. Light snow in the morning, then a chance of light snow in the afternoon. Waves 1 to 3 feet building to 3 to 5 feet in the afternoon. Waves occasionally around 7 feet. .TONIGHT...Northwest winds 20 to 25 knots with gusts to 30 knots becoming west 15 to 20 knots after midnight. Mostly clear. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. Waves occasionally around 7 feet. .MONDAY...Southwest winds 10 to 15 knots. Partly cloudy until late afternoon becoming mostly cloudy. Waves 1 to 3 feet. .MONDAY NIGHT...Southwest winds 15 to 20 knots. Cloudy. Light snow likely until early morning, then a chance of light snow after midnight. Waves 2 to 4 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-301630- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 324 AM EST Sun Nov 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .TODAY...South winds 15 to 20 knots veering to the west late in the morning, then becoming northwest 20 to 25 knots early in the afternoon increasing to 30 knots late in the afternoon. Light snow and a slight chance of light rain in the morning, then a chance of light rain and snow in the afternoon. Waves 3 to 5 feet subsiding to 2 to 4 feet late in the morning, then building to 3 to 5 feet early in the afternoon building to 6 to 9 feet late in the afternoon. Waves occasionally around 12 feet. .TONIGHT...Northwest gusts to 30 knots with brief gusts to 35 knot gales diminishing to 15 to 20 knots. Mostly clear. Waves 8 to 12 feet subsiding to 5 to 7 feet after midnight. Waves occasionally around 15 feet. .MONDAY...West winds 10 to 15 knots backing to the southwest early in the afternoon. Partly cloudy until late afternoon becoming mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and early afternoon, then building to 2 to 4 feet early in the afternoon. .MONDAY NIGHT...Southwest winds 15 to 20 knots. Cloudy. Light snow likely until early morning, then a chance of light snow after midnight. Waves 3 to 5 feet. Waves occasionally around 7 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-301630- Port Austin to Harbor Beach MI- 324 AM EST Sun Nov 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EST THIS AFTERNOON... ...GALE WARNING IN EFFECT FROM 2 PM EST THIS AFTERNOON THROUGH THIS EVENING... .TODAY...South winds 15 to 20 knots veering to the southwest late in the morning, then becoming west 20 to 25 knots early in the afternoon becoming northwest to 30 knots with gusts to 35 knot gales late in the afternoon. Light snow and a slight chance of light rain. Waves 4 to 6 feet building to 8 to 12 feet late in the afternoon. Waves occasionally around 15 feet. .TONIGHT...Northwest gales to 35 knot gales diminishing to 20 to 25 knots. Mostly cloudy early in the evening becoming partly cloudy. A chance of light snow early in the evening, then a slight chance of light snow in the late evening and overnight. Waves 10 to 14 feet subsiding to 6 to 9 feet after midnight. Waves occasionally around 18 feet. .MONDAY...Southwest winds 10 to 15 knots. Partly cloudy until late afternoon becoming mostly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet in the late morning and afternoon. Waves occasionally around 7 feet. .MONDAY NIGHT...Southwest winds 15 to 20 knots. Cloudy with light snow likely. Waves 1 to 3 feet building to 2 to 4 feet in the late evening and overnight. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-301630- Harbor Beach to Port Sanilac MI- 324 AM EST Sun Nov 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .TODAY...Southwest winds 20 to 25 knots veering to the west with gusts to 30 knots in the afternoon. Light rain and light snow in the morning, then light snow likely and a slight chance of light rain in the afternoon. Waves 4 to 6 feet subsiding to 2 to 4 feet early in the afternoon, then building to 5 to 7 feet late in the afternoon. Waves occasionally around 10 feet. .TONIGHT...Northwest winds to 30 knots diminishing to 15 to 20 knots. Mostly cloudy early in the evening becoming mostly clear. A chance of light snow until early morning, then a slight chance of light snow after midnight. Waves 6 to 9 feet. Waves occasionally around 12 feet. .MONDAY...Southwest winds 10 to 15 knots. Mostly sunny becoming partly cloudy in the late morning and early afternoon becoming mostly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet in the late morning and afternoon. Waves occasionally around 7 feet. .MONDAY NIGHT...Southwest winds 10 to 15 knots. Light snow likely until early morning, then light snow after midnight. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-301630- Port Sanilac to Port Huron MI- 324 AM EST Sun Nov 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .TODAY...Southwest winds 20 to 25 knots veering to the west in the afternoon. Gusts to 30 knots. Light rain and light snow in the morning, then a chance of light snow in the afternoon. Waves 4 to 6 feet subsiding to 2 to 4 feet in the afternoon. Waves occasionally around 8 feet. .TONIGHT...Northwest winds to 30 knots diminishing to 20 to 25 knots with gusts to 30 knots in the late evening and overnight. Mostly cloudy early in the evening then clearing. A chance of light snow until early morning, then a slight chance of light snow after midnight. Waves 4 to 6 feet. Waves occasionally around 7 feet. .MONDAY...West winds 10 to 15 knots becoming southwest 5 to 10 knots early in the afternoon. Mostly sunny becoming partly cloudy in the late morning and early afternoon becoming mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. .MONDAY NIGHT...Southwest winds 10 to 15 knots. Light snow likely early in the evening, then light snow in the late evening and overnight. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-301630- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 324 AM EST Sun Nov 30 2025 ...LOW WATER ADVISORY IN EFFECT UNTIL 10 PM EST THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .TODAY...Southwest winds to 30 knots becoming west 20 to 25 knots late in the afternoon. Brief gusts to 35 knot gales. Light rain with light snow likely in the morning. Waves 4 to 6 feet. Waves occasionally around 7 feet. .TONIGHT...Northwest winds 20 to 25 knots diminishing to 10 to 15 knots. Mostly clear. Waves 2 to 4 feet subsiding to 2 feet or less in the late evening and overnight. .MONDAY...Northwest winds 5 to 10 knots early in the morning becoming light and variable. Partly cloudy until late afternoon becoming mostly cloudy. Waves 2 feet or less. .MONDAY NIGHT...Light and variable winds becoming southeast 5 to 10 knots in the late evening and early morning, then veering to the southwest after midnight. Light snow likely until early morning, then light snow after midnight. Waves 2 feet or less. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 40 degrees. $$ MR You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes