Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI
Issued by NWS Detroit/Pontiac, MI
307 FZUS53 KDTX 301438 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 938 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. LHZ422-302245- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 938 AM EST Sun Nov 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TODAY...West winds 15 to 20 knots increasing to 20 to 25 knots with gusts to 30 knots early in the afternoon, then becoming northwest to 30 knots with gusts to 35 knot gales late in the afternoon. Cloudy with light snow showers likely. Waves 1 to 3 feet building to 3 to 5 feet in the afternoon. Waves occasionally around 7 feet. .TONIGHT...Northwest winds to 30 knots diminishing to 10 to 15 knots. Partly cloudy. A slight chance of light snow showers early in the evening. 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...Southwest winds 15 to 20 knots. Cloudy. Light snow likely until early morning, then a chance of light snow after midnight. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-302245- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 938 AM EST Sun Nov 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .REST OF TODAY...West winds 15 to 20 knots increasing to 20 to 25 knots with gusts to 30 knots early in the afternoon, then becoming northwest to 30 knots with gusts to 35 knot gales late in the afternoon. Light snow showers and a slight chance of showers late in the morning, then light rain and snow showers in the afternoon. Waves 2 to 4 feet building to 6 to 9 feet. Waves occasionally around 12 feet. .TONIGHT...Northwest winds to 30 knots with gusts to 35 knot gales diminishing to 15 to 20 knots. Mostly cloudy early in the evening becoming mostly clear. A slight chance of light snow showers early in the evening. Waves 8 to 12 feet subsiding to 5 to 7 feet after midnight. Waves occasionally around 15 feet. .MONDAY...West winds 10 to 15 knots backing to the southwest early in the afternoon. Partly cloudy until late afternoon becoming mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. .MONDAY NIGHT...Southwest winds 15 to 20 knots. Cloudy. Light snow likely until early morning, then a chance of light snow after midnight. Waves 2 to 4 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-302245- Port Austin to Harbor Beach MI- 938 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... .REST OF TODAY...Southwest winds 15 to 20 knots becoming west 20 to 25 knots early in the afternoon, then becoming northwest to 30 knots with gusts to 40 knot gales late in the afternoon. Light snow showers and a slight chance of showers late in the morning, then light rain and snow showers in the afternoon. Waves 4 to 6 feet building to 8 to 12 feet late in the afternoon. Waves occasionally around 15 feet. .TONIGHT...Northwest winds to 30 knots with gusts to 35 knot gales diminishing to 15 to 20 knots. Cloudy with a slight chance of light snow showers early in the evening, then partly cloudy in the late evening and early morning. Partly cloudy with a slight chance of light snow after midnight. 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. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-302245- Harbor Beach to Port Sanilac MI- 938 AM EST Sun Nov 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .REST OF TODAY...Southwest winds 20 to 25 knots with gusts to 30 knots becoming northwest to 30 knots with gusts to 35 knot gales late in the afternoon. Light snow showers and a slight chance of showers late in the morning, then light snow showers likely and a slight chance of showers in the afternoon. Waves 3 to 5 feet building to 5 to 7 feet late in the afternoon. Waves occasionally around 10 feet. .TONIGHT...Northwest winds to 30 knots with gusts to 35 knot gales diminishing to 15 to 20 knots. Cloudy with a chance of light snow showers early in the evening, then partly cloudy with a slight chance of light snow in the late evening and overnight. Waves 6 to 9 feet. Waves occasionally around 12 feet. .MONDAY...Southwest winds 10 to 15 knots. Mostly sunny becoming partly cloudy in the late morning and early afternoon becoming mostly cloudy. A slight chance of light snow early in the morning. Waves 3 to 5 feet subsiding to 1 to 3 feet in the late morning and afternoon. Waves occasionally around 7 feet. .MONDAY NIGHT...Southwest winds 10 to 15 knots. Light snow likely until early morning, then light snow after midnight. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-302245- Port Sanilac to Port Huron MI- 938 AM EST Sun Nov 30 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY MORNING... .REST OF TODAY...Southwest winds 20 to 25 knots with gusts to 30 knots veering to the west with gusts to 35 knot gales late in the afternoon. Light snow showers likely and a slight chance of showers late in the morning, then light snow showers in the afternoon. Waves 3 to 5 feet. Waves occasionally around 7 feet. .TONIGHT...Northwest winds to 30 knots with gusts to 35 knot gales diminishing to 15 to 20 knots. Cloudy early in the evening then clearing. Light snow showers early in the evening, then a slight chance of light snow in the late evening and overnight. 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. A slight chance of light snow early in the morning. 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 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-302245- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 938 AM EST Sun Nov 30 2025 ...LOW WATER ADVISORY IN EFFECT UNTIL 10 PM EST THIS EVENING... ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS EVENING... .REST OF TODAY...Southwest gales to 35 knot gales becoming west 20 to 25 knots. Cloudy with a slight chance of light snow showers. Waves 4 to 6 feet. Waves occasionally around 8 feet. .TONIGHT...Northwest winds 20 to 25 knots diminishing to 10 to 15 knots. Partly cloudy. A slight chance of light snow showers early in the evening. Waves 2 to 4 feet subsiding to 2 feet or less in the late evening and overnight. .MONDAY...Northwest winds 5 to 10 knots early in the morning becoming light and variable. Partly cloudy until late afternoon becoming mostly cloudy. Waves 2 feet or less. .MONDAY NIGHT...Light and variable winds becoming southeast 5 to 10 knots in the late evening and early morning, then veering to the southwest after midnight. Light snow likely until early morning, then light snow after midnight. Waves 2 feet or less. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 40 degrees. $$ JA You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes