Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI
Issued by NWS Detroit/Pontiac, MI
428 FZUS53 KDTX 042035 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 335 PM EST Thu Dec 4 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. LHZ422-050445- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 335 PM EST Thu Dec 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE FRIDAY NIGHT... .TONIGHT...Southwest winds 10 to 15 knots increasing to 30 knots. Partly cloudy. Waves 1 to 3 feet building to 3 to 5 feet after midnight. Waves occasionally around 7 feet. .FRIDAY...Southwest winds to 30 knots diminishing to 20 to 25 knots early in the afternoon. Partly cloudy. Waves 4 to 6 feet. Waves occasionally around 8 feet. .FRIDAY NIGHT...Southwest winds to 30 knots. Mostly cloudy with a chance of light snow. Waves 4 to 6 feet. Waves occasionally around 8 feet. .SATURDAY...West winds 15 to 20 knots. Mostly cloudy. Waves 2 to 4 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-050445- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 335 PM EST Thu Dec 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE FRIDAY NIGHT... .TONIGHT...Southwest winds 10 to 15 knots increasing to 30 knots. Partly cloudy. Waves 1 to 3 feet building to 5 to 7 feet. Waves occasionally around 10 feet. .FRIDAY...Southwest winds to 30 knots diminishing to 20 to 25 knots early in the afternoon. Gusts to 35 knot gales. Partly cloudy. Waves 6 to 9 feet. Waves occasionally around 12 feet. .FRIDAY NIGHT...Southwest winds to 30 knots. Cloudy with a chance of light snow. Waves 5 to 7 feet. Waves occasionally around 10 feet. .SATURDAY...West winds 20 to 25 knots diminishing to 15 to 20 knots in the late morning and afternoon. Mostly cloudy. Waves 4 to 6 feet. Waves occasionally around 8 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-050445- Port Austin to Harbor Beach MI- 335 PM EST Thu Dec 4 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE FRIDAY NIGHT... .TONIGHT...Southwest winds 10 to 15 knots increasing to 20 to 25 knots with gusts to 30 knots. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet this evening, then building to 3 to 5 feet after midnight. Waves occasionally around 7 feet. .FRIDAY...Southwest winds to 30 knots diminishing to 20 to 25 knots early in the afternoon. Partly cloudy early in the morning becoming mostly cloudy. Waves 4 to 6 feet. Waves occasionally around 7 feet. .FRIDAY NIGHT...Southwest winds 20 to 25 knots increasing to 30 knots in the late evening and early morning, then diminishing to 20 to 25 knots after midnight. Mostly cloudy with light snow likely. Waves 4 to 6 feet. Waves occasionally around 8 feet. .SATURDAY...Southwest winds 20 to 25 knots becoming west 15 to 20 knots in the late morning and afternoon. Mostly cloudy. Waves 3 to 5 feet. Waves occasionally around 7 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-050445- Harbor Beach to Port Sanilac MI- 335 PM EST Thu Dec 4 2025 .TONIGHT...Southwest winds 10 to 15 knots increasing to 20 to 25 knots. Partly cloudy. Waves 1 to 3 feet building to 2 to 4 feet early in the morning. .FRIDAY...Southwest winds 20 to 25 knots diminishing to 15 to 20 knots in the late morning and afternoon. Partly cloudy. Waves 2 to 4 feet. .FRIDAY NIGHT...Southwest winds 20 to 25 knots. Mostly cloudy with light snow likely. Waves 2 to 4 feet. .SATURDAY...West winds 15 to 20 knots. Mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-050445- Port Sanilac to Port Huron MI- 335 PM EST Thu Dec 4 2025 .TONIGHT...Southwest winds 10 to 15 knots increasing to 15 to 20 knots after midnight. Mostly clear. Waves 1 to 3 feet building to 2 to 4 feet early in the morning. .FRIDAY...Southwest winds 20 to 25 knots diminishing to 15 to 20 knots in the late morning and afternoon. Mostly sunny early in the morning becoming partly cloudy. Waves 2 to 4 feet. .FRIDAY NIGHT...Southwest winds 20 to 25 knots. Cloudy with a chance of light snow. Waves 2 to 4 feet. .SATURDAY...West winds 15 to 20 knots. Mostly cloudy. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-050445- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 335 PM EST Thu Dec 4 2025 .TONIGHT...West winds 5 to 10 knots backing to the southwest this evening, then increasing to 10 to 15 knots after midnight. Clear. Waves 2 feet or less. .FRIDAY...Southwest winds 10 to 15 knots. Mostly sunny becoming partly cloudy in the late morning and early afternoon becoming mostly sunny. Waves 1 to 3 feet. .FRIDAY NIGHT...Southwest winds 15 to 20 knots increasing to 20 to 25 knots in the late evening and early morning, then diminishing to 15 to 20 knots after midnight. Partly cloudy early in the evening becoming mostly cloudy. Waves 1 to 3 feet building to 2 to 4 feet in the late evening and overnight. A Small Craft Advisory may be needed. .SATURDAY...Southwest winds 15 to 20 knots becoming west 10 to 15 knots early in the afternoon. Mostly cloudy. Waves 1 to 3 feet. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 34 degrees. $$ DRK You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes