FZUS53 KDTX 190711 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 311 AM EDT Tue May 19 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. LHZ422-191515- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 311 AM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...South winds 15 to 20 knots becoming southwest 20 to 25 knots with gusts to 30 knots in the late morning and afternoon. Mostly cloudy with a chance of showers in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Waves 3 to 5 feet. Waves occasionally around 7 feet. .TONIGHT...West winds 15 to 20 knots veering to the northwest after midnight. Partly cloudy becoming mostly cloudy in the late evening and early morning becoming partly cloudy. A chance of showers and thunderstorms early in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. .WEDNESDAY...Northwest winds 15 to 20 knots becoming north 10 to 15 knots in the late morning and early afternoon, then becoming northeast 15 to 20 knots early in the afternoon. Partly cloudy early in the morning then clearing. Waves 1 to 3 feet. .WEDNESDAY NIGHT...Northeast winds 15 to 20 knots diminishing to 10 to 15 knots in the late evening and overnight. Mostly clear. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-191515- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 311 AM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...South winds 15 to 20 knots becoming southwest 20 to 25 knots with gusts to 30 knots in the late morning and afternoon. Mostly cloudy with a slight chance of showers in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Waves 3 to 5 feet. Waves occasionally around 6 feet. .TONIGHT...West winds 15 to 20 knots veering to the northwest in the late evening and overnight. Partly cloudy early in the evening becoming mostly cloudy. A chance of showers and thunderstorms early in the evening, then a slight chance of showers in the late evening and overnight. Waves 3 to 5 feet. Waves occasionally around 7 feet. .WEDNESDAY...Northwest winds 15 to 20 knots becoming north 10 to 15 knots in the late morning and early afternoon, then becoming northeast 15 to 20 knots early in the afternoon. Partly cloudy early in the morning then clearing. Waves 2 to 4 feet. .WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Mostly clear. Waves 3 to 5 feet. Waves occasionally around 7 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-191515- Port Austin to Harbor Beach MI- 311 AM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...Southwest winds 15 to 20 knots. Partly cloudy. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Waves 2 to 4 feet building to 3 to 5 feet in the late morning and afternoon. Waves occasionally around 7 feet. .TONIGHT...West winds 15 to 20 knots veering to the northwest in the late evening and early morning, then becoming north 10 to 15 knots after midnight. Partly cloudy early in the evening becoming mostly cloudy. A chance of showers and thunderstorms early in the evening, then a slight chance of thunderstorms in the late evening and early morning. A slight chance of showers in the late evening and overnight. Waves 2 to 4 feet. .WEDNESDAY...North winds 10 to 15 knots. Partly cloudy until late afternoon then clearing. Waves 3 to 5 feet. Waves occasionally around 7 feet. .WEDNESDAY NIGHT...North winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Mostly clear. Waves 3 to 5 feet. Waves occasionally around 7 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-191515- Harbor Beach to Port Sanilac MI- 311 AM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...Southwest winds 15 to 20 knots. Partly cloudy. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Waves 2 to 4 feet. .TONIGHT...West winds 15 to 20 knots veering to the north in the late evening and overnight. Partly cloudy early in the evening becoming cloudy. A chance of showers and thunderstorms until early morning, then a chance of showers after midnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .WEDNESDAY...North winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. Partly cloudy with a chance of showers early in the morning, then mostly sunny in the late morning and afternoon. Waves 2 to 4 feet. .WEDNESDAY NIGHT...North winds 10 to 15 knots. Mostly clear. Waves 3 to 5 feet. Waves occasionally around 7 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-191515- Port Sanilac to Port Huron MI- 311 AM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...Southwest winds 15 to 20 knots. Partly cloudy. A chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Waves 2 to 4 feet. .TONIGHT...Southwest winds 15 to 20 knots veering to the north after midnight. Partly cloudy early in the evening becoming cloudy. A chance of showers and thunderstorms until early morning, then a chance of showers after midnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight. .WEDNESDAY...North winds 15 to 20 knots. Partly cloudy with a chance of showers early in the morning, then mostly sunny in the late morning and afternoon. Waves 2 to 4 feet. .WEDNESDAY NIGHT...North winds 15 to 20 knots. Mostly clear. Waves 3 to 5 feet. Waves occasionally around 7 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LEZ444-191515- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 311 AM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EDT THIS MORNING THROUGH THIS EVENING... .TODAY...Southwest winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. Partly cloudy. A chance of showers and a slight chance of thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet in the afternoon. .TONIGHT...Southwest winds 15 to 20 knots becoming west 10 to 15 knots in the late evening and early morning, then veering to the northwest after midnight. Mostly cloudy. Showers and thunderstorms likely early in the evening, then a chance of thunderstorms in the late evening and early morning. A chance of showers in the late evening and overnight. Waves 2 to 4 feet subsiding to 2 feet or less in the late evening and overnight. .WEDNESDAY...North winds 10 to 15 knots becoming northeast 5 to 10 knots early in the afternoon. Mostly cloudy with a chance of showers early in the morning, then partly cloudy in the late morning and afternoon. Waves 2 feet or less. .WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Partly cloudy. Waves 1 to 3 feet. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is missing. $$ MR You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes