FZUS53 KDTX 301948 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 348 PM EDT Thu Apr 30 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. LHZ422-010400- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 348 PM EDT Thu Apr 30 2026 .TONIGHT...North winds 5 to 10 knots. Mostly clear. Waves 2 feet or less. .FRIDAY...North winds 5 to 10 knots. Mostly cloudy early in the morning becoming partly cloudy. A slight chance of showers in the late morning and afternoon. Waves 2 feet or less. .FRIDAY NIGHT...Northeast winds 10 to 15 knots becoming north 5 to 10 knots in the late evening and early morning, then becoming northwest 10 to 15 knots after midnight. Partly cloudy. Waves 2 feet or less. .SATURDAY...Northwest winds 10 to 15 knots becoming north 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-010400- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 348 PM EDT Thu Apr 30 2026 .TONIGHT...North winds 5 to 10 knots. Mostly clear. A slight chance of showers in the evening, then a slight chance of light rain and snow showers after midnight. Waves 2 feet or less. .FRIDAY...North winds 5 to 10 knots veering to the northeast early in the afternoon. Mostly cloudy early in the morning becoming partly cloudy. A slight chance of light rain and snow showers early in the morning. A slight chance of showers early in the afternoon. Waves 2 feet or less. .FRIDAY NIGHT...North winds 5 to 10 knots becoming northwest 10 to 15 knots after midnight. Partly cloudy. Waves 2 feet or less. .SATURDAY...Northwest winds 10 to 15 knots becoming north 5 to 10 knots in the late morning and early afternoon, then veering to the east early in the afternoon. Mostly sunny. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-010400- Port Austin to Harbor Beach MI- 348 PM EDT Thu Apr 30 2026 .TONIGHT...North winds 5 to 10 knots backing to the northwest early in the morning. Partly cloudy. A slight chance of light rain and snow showers after midnight. Waves 2 feet or less. .FRIDAY...North winds 5 to 10 knots. Partly cloudy until late afternoon becoming mostly sunny. A slight chance of light rain and snow showers early in the morning. Waves 2 feet or less. .FRIDAY NIGHT...Northwest winds 5 to 10 knots increasing to 10 to 15 knots after midnight. Partly cloudy. Waves 2 feet or less. .SATURDAY...Northwest winds 10 to 15 knots becoming north 5 to 10 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-010400- Harbor Beach to Port Sanilac MI- 348 PM EDT Thu Apr 30 2026 .TONIGHT...North winds 5 to 10 knots in the evening becoming light and variable. Partly cloudy. A slight chance of showers in the evening. Waves 2 feet or less. .FRIDAY...North winds 5 to 10 knots. Partly cloudy. A slight chance of showers in the late morning and afternoon. Waves 2 feet or less. .FRIDAY NIGHT...North winds 5 to 10 knots. Partly cloudy. Waves 2 feet or less. .SATURDAY...Northwest winds 5 to 10 knots veering to the north early in the afternoon. Mostly sunny. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-010400- Port Sanilac to Port Huron MI- 348 PM EDT Thu Apr 30 2026 .TONIGHT...Northeast winds 5 to 10 knots in the evening becoming light and variable. Mostly clear. A chance of showers in the evening. Waves 2 feet or less. .FRIDAY...North winds 5 to 10 knots increasing to 10 to 15 knots early in the afternoon. Partly cloudy. A slight chance of showers in the late morning and afternoon. Waves 2 feet or less. .FRIDAY NIGHT...North winds 5 to 10 knots. Partly cloudy. Waves 2 feet or less. .SATURDAY...North winds 5 to 10 knots. Partly cloudy becoming mostly sunny in the late morning and early afternoon becoming partly cloudy. Waves 2 feet or less. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-010400- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 348 PM EDT Thu Apr 30 2026 .TONIGHT...Northwest winds 10 to 15 knots diminishing to 5 to 10 knots in the late evening and overnight. Mostly clear in the evening becoming mostly cloudy. Light showers likely. Waves 2 feet or less. .FRIDAY...Northwest winds 5 to 10 knots. Mostly cloudy with a chance of showers until late afternoon, then partly cloudy with a chance of showers and a slight chance of thunderstorms early in the afternoon. Waves 2 feet or less. .FRIDAY NIGHT...North winds 5 to 10 knots. Partly cloudy. A chance of showers early in the evening. Waves 2 feet or less. .SATURDAY...Northwest winds 5 to 10 knots. Mostly sunny until late afternoon becoming partly cloudy. Waves 2 feet or less. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is 51 degrees. $$ AM You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes