Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI
Issued by NWS Detroit/Pontiac, MI
679 FZUS53 KDTX 302045 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 345 PM 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. LHZ422-010445- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 345 PM EST Sun Nov 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EST THIS EVENING... .TONIGHT...Northwest winds to 30 knots diminishing to 10 to 15 knots. Partly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. Waves occasionally around 7 feet. .MONDAY...West winds 5 to 10 knots becoming southwest 10 to 15 knots in the late morning and afternoon. Partly cloudy until late afternoon becoming mostly cloudy. Waves 2 feet or less. .MONDAY NIGHT...South winds 15 to 20 knots becoming southwest 10 to 15 knots after midnight. Cloudy. Light snow likely until early morning. Waves 1 to 3 feet. .TUESDAY...West winds 10 to 15 knots. Partly cloudy. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-010445- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 345 PM EST Sun Nov 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .TONIGHT...Northwest winds to 30 knots with brief gusts to 35 knot gales diminishing to 10 to 15 knots. Partly cloudy. Waves 8 to 12 feet subsiding to 3 to 5 feet. Waves occasionally around 15 feet. .MONDAY...West winds 5 to 10 knots becoming southwest 15 to 20 knots. Partly cloudy until late afternoon becoming mostly cloudy. Waves 1 to 3 feet. .MONDAY NIGHT...Southwest winds 15 to 20 knots. Cloudy. Light snow likely until early morning. Waves 2 to 4 feet. .TUESDAY...West winds 10 to 15 knots. Mostly cloudy early in the morning becoming partly cloudy. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-010445- Port Austin to Harbor Beach MI- 345 PM EST Sun Nov 30 2025 ...GALE WARNING IN EFFECT UNTIL 10 PM EST THIS EVENING... .TONIGHT...Northwest winds to 30 knots with gusts to 35 knot gales diminishing to 15 to 20 knots. Mostly cloudy with isolated light snow showers in the evening, then partly cloudy after midnight. Waves 8 to 12 feet subsiding to 5 to 7 feet early in the morning. Waves occasionally around 15 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. Light snow likely early in the evening, then a chance of light snow in the late evening and overnight. Waves 1 to 3 feet. .TUESDAY...West winds 10 to 15 knots. Partly cloudy. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-010445- Harbor Beach to Port Sanilac MI- 345 PM EST Sun Nov 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .TONIGHT...Northwest winds to 30 knots with brief gusts to 35 knot gales diminishing to 15 to 20 knots after midnight. Mostly cloudy with scattered light snow showers in the evening, then mostly clear after midnight. Waves 8 to 12 feet subsiding to 4 to 6 feet early in the morning. Waves occasionally around 15 feet. .MONDAY...West winds 10 to 15 knots becoming southwest 5 to 10 knots in the late morning and early afternoon, then increasing to 10 to 15 knots early in the afternoon. Mostly sunny becoming partly cloudy in the late morning and early afternoon becoming mostly cloudy. Waves 3 to 5 feet subsiding to 1 to 3 feet in the late morning and afternoon. Waves occasionally around 7 feet. .MONDAY NIGHT...Southwest winds 10 to 15 knots. Cloudy with light snow likely. Waves 2 feet or less. .TUESDAY...West winds 10 to 15 knots. Partly cloudy. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-010445- Port Sanilac to Port Huron MI- 345 PM EST Sun Nov 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .TONIGHT...Northwest winds to 30 knots with brief gusts to 35 knot gales diminishing to 10 to 15 knots. Mostly cloudy with scattered light snow showers and a slight chance of light freezing rain in the evening, then mostly clear 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 in the late morning and 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...South winds 10 to 15 knots becoming southwest 5 to 10 knots after midnight. Cloudy with light snow likely. Waves 2 feet or less. .TUESDAY...West winds 5 to 10 knots increasing to 10 to 15 knots early in the afternoon. Partly cloudy early in the morning becoming mostly sunny. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-010445- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 345 PM EST Sun Nov 30 2025 ...LOW WATER ADVISORY IN EFFECT UNTIL 10 PM EST THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EST THIS EVENING... .TONIGHT...West winds 20 to 25 knots becoming northwest 10 to 15 knots. Partly cloudy with isolated light snow showers in the evening, then clear after midnight. Waves 2 to 4 feet subsiding to 2 feet or less in the late evening and overnight. .MONDAY...Northwest winds 5 to 10 knots early in the morning becoming light and variable. Mostly sunny becoming partly cloudy in the late morning and early afternoon becoming mostly cloudy. Waves 2 feet or less. .MONDAY NIGHT...Southeast winds 5 to 10 knots veering to the west after midnight. Light snow. Waves 2 feet or less. .TUESDAY...Northwest winds 5 to 10 knots. Mostly cloudy early in the morning becoming partly cloudy. Waves 2 feet or less. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 39 degrees. $$ KDK You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes