FZUS53 KDTX 201955 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 355 PM EDT Fri Mar 20 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. LHZ422-210400- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 355 PM EDT Fri Mar 20 2026 .TONIGHT...North winds 10 to 15 knots diminishing to 5 to 10 knots in the late evening and overnight. Partly cloudy. Waves 2 feet or less. .SATURDAY...Light and variable winds becoming east 5 to 10 knots in the late morning and afternoon. Mostly cloudy until late afternoon becoming partly cloudy. Waves 2 feet or less. .SATURDAY NIGHT...South winds 10 to 15 knots veering to the west after midnight. Partly cloudy early in the evening becoming mostly cloudy. Waves 2 feet or less. .SUNDAY...North winds 10 to 15 knots becoming northeast 20 to 25 knots. Mostly cloudy. A chance of light rain until late afternoon. Waves 1 to 3 feet building to 2 to 4 feet early in the afternoon. A Small Craft Advisory may be needed. Wave heights are for ice free areas. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-210400- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 355 PM EDT Fri Mar 20 2026 .TONIGHT...North winds 10 to 15 knots becoming northwest 5 to 10 knots after midnight. Partly cloudy. Waves 1 to 3 feet. .SATURDAY...North winds 5 to 10 knots veering to the east in the late morning and afternoon. Mostly cloudy. Waves 2 feet or less. .SATURDAY NIGHT...South winds 10 to 15 knots veering to the west after midnight. Mostly cloudy. A chance of light rain after midnight. Waves 2 feet or less. .SUNDAY...Northwest winds 10 to 15 knots becoming north 20 to 25 knots. Mostly cloudy. A chance of light rain until late afternoon. Waves 1 to 3 feet building to 4 to 6 feet in the late morning and afternoon. Waves occasionally around 8 feet. A Small Craft Advisory may be needed. Wave heights are for ice free areas. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-210400- Port Austin to Harbor Beach MI- 355 PM EDT Fri Mar 20 2026 .TONIGHT...North winds 10 to 15 knots becoming northwest 5 to 10 knots after midnight. Partly cloudy. Waves 1 to 3 feet. .SATURDAY...North winds 5 to 10 knots veering to the east in the late morning and afternoon. Mostly cloudy. Waves 2 feet or less. .SATURDAY NIGHT...South winds 10 to 15 knots veering to the southwest after midnight. Mostly cloudy. A chance of light rain after midnight. Waves 1 to 3 feet. .SUNDAY...Northwest winds 10 to 15 knots becoming north 15 to 20 knots in the late morning and afternoon. Mostly cloudy. A chance of light rain until late afternoon. Waves 1 to 3 feet building to 4 to 6 feet in the late morning and afternoon. Waves occasionally around 8 feet. A Small Craft Advisory may be needed. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-210400- Harbor Beach to Port Sanilac MI- 355 PM EDT Fri Mar 20 2026 .TONIGHT...North winds 15 to 20 knots becoming northwest 5 to 10 knots. Partly cloudy. Waves 1 to 3 feet. .SATURDAY...North winds 5 to 10 knots veering to the southeast in the late morning and afternoon. Mostly cloudy until late afternoon becoming partly cloudy. Waves 2 feet or less. .SATURDAY NIGHT...South winds 10 to 15 knots veering to the southwest after midnight. Mostly cloudy. Waves 1 to 3 feet. .SUNDAY...Northwest winds 10 to 15 knots becoming north 15 to 20 knots early in the afternoon. Mostly cloudy with a chance of light rain. Waves 1 to 3 feet building to 3 to 5 feet in the late morning and afternoon. Waves occasionally around 7 feet. A Small Craft Advisory may be needed. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-210400- Port Sanilac to Port Huron MI- 355 PM EDT Fri Mar 20 2026 .TONIGHT...North winds 15 to 20 knots diminishing to 5 to 10 knots. Partly cloudy. Waves 1 to 3 feet. .SATURDAY...North winds 5 to 10 knots veering to the east in the late morning and afternoon. Mostly cloudy until late afternoon becoming partly cloudy. Waves 2 feet or less. .SATURDAY NIGHT...South winds 10 to 15 knots. Mostly cloudy. Waves 2 feet or less. .SUNDAY...West winds 10 to 15 knots veering to the north in the late morning and early afternoon, then increasing to 15 to 20 knots early in the afternoon. Mostly cloudy with a chance of light rain. Waves 1 to 3 feet building to 3 to 5 feet early in the afternoon. Waves occasionally around 7 feet. A Small Craft Advisory may be needed. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-210400- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 355 PM EDT Fri Mar 20 2026 .TONIGHT...North winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. Partly cloudy. Waves 2 feet or less. .SATURDAY...Light and variable winds becoming southeast 5 to 10 knots in the late morning and afternoon. Mostly cloudy early in the morning becoming partly cloudy. Waves 2 feet or less. .SATURDAY NIGHT...Southeast winds 5 to 10 knots becoming south 10 to 15 knots in the late evening and overnight. Partly cloudy. Waves 2 feet or less. .SUNDAY...West winds 10 to 15 knots veering to the north early in the afternoon. Partly cloudy until late afternoon, then mostly cloudy with a chance of light rain early in the afternoon. Waves 2 feet or less. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 35 degrees. $$ AM You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes