FZUS53 KDTX 192039 NSHDTX Nearshore Marine Forecast for Michigan National Weather Service Detroit/Pontiac MI 439 PM 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. LHZ422-200445- Inner Saginaw Bay SW of Point Au Gres to Bay Port MI- 439 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... .REST OF TONIGHT...Southwest winds 20 to 25 knots with gusts to 30 knots becoming northwest 15 to 20 knots in the late evening and overnight. Partly cloudy. Scattered showers late in the afternoon. 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 becoming mostly sunny in the late morning and early afternoon becoming partly cloudy. 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. Partly cloudy. Waves 1 to 3 feet. .THURSDAY...Northeast winds 15 to 20 knots. Mostly sunny until late afternoon becoming partly cloudy. Waves 2 to 4 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ421-200445- Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay- 439 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... .REST OF TONIGHT...Southwest winds 15 to 20 knots veering to the northwest this evening, then diminishing to 10 to 15 knots after midnight. Partly cloudy. Scattered showers late in the afternoon. Waves 2 to 4 feet. .WEDNESDAY...Northwest winds 10 to 15 knots becoming northeast 15 to 20 knots early in the afternoon. Partly cloudy becoming mostly sunny in the late morning and early afternoon becoming partly cloudy. Waves 1 to 3 feet building to 3 to 5 feet early in the afternoon. Waves occasionally around 7 feet. .WEDNESDAY NIGHT...Northeast winds 15 to 20 knots becoming north 10 to 15 knots after midnight. Partly cloudy. Waves 3 to 5 feet. Waves occasionally around 7 feet. .THURSDAY...Northeast winds 15 to 20 knots. Partly cloudy becoming mostly sunny in the late morning and early afternoon becoming partly cloudy. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ441-200445- Port Austin to Harbor Beach MI- 439 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... .REST OF TONIGHT...Southwest winds 15 to 20 knots veering to the northwest this evening, then diminishing to 10 to 15 knots after midnight. Partly cloudy with isolated showers and thunderstorms late in the afternoon, then mostly cloudy with isolated showers this evening. Mostly cloudy after midnight. Waves 3 to 5 feet. Waves occasionally around 7 feet. .WEDNESDAY...North winds 10 to 15 knots. Partly cloudy becoming mostly sunny in the late morning and early afternoon becoming partly cloudy. Waves 2 to 4 feet. .WEDNESDAY NIGHT...North winds 15 to 20 knots diminishing to 10 to 15 knots after midnight. Partly cloudy. Waves 3 to 5 feet. Waves occasionally around 7 feet. .THURSDAY...Northeast winds 10 to 15 knots. Mostly sunny until late afternoon becoming partly cloudy. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ442-200445- Harbor Beach to Port Sanilac MI- 439 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... .REST OF TONIGHT...Southwest winds 15 to 20 knots becoming west 10 to 15 knots this evening, then veering to the north after midnight. Partly cloudy late in the afternoon becoming mostly cloudy. Scattered showers and thunderstorms late in the afternoon, then scattered showers and isolated thunderstorms this evening. Some thunderstorms may be severe with damaging winds and large hail late in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet early in the morning. .WEDNESDAY...North winds 10 to 15 knots. Partly cloudy becoming mostly sunny in the late morning and early afternoon becoming partly cloudy. Waves 2 to 4 feet. .WEDNESDAY NIGHT...North winds 10 to 15 knots. Partly cloudy. Waves 3 to 5 feet. Waves occasionally around 7 feet. .THURSDAY...Northeast winds 10 to 15 knots. Mostly sunny. Waves 1 to 3 feet. See Lake Huron Open Lake Forecast for days 3 through 5. $$ LHZ443-200445- Port Sanilac to Port Huron MI- 439 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... .REST OF TONIGHT...Southwest winds 15 to 20 knots becoming west 10 to 15 knots this evening, then becoming north 15 to 20 knots after midnight. Partly cloudy with scattered showers and thunderstorms this evening, then mostly cloudy with a chance of showers after midnight. Some thunderstorms may be severe with damaging winds and large hail late in the afternoon. Some thunderstorms may produce damaging winds and large hail this evening. Waves 1 to 3 feet building to 2 to 4 feet early in the morning. .WEDNESDAY...North winds 15 to 20 knots. Partly cloudy. Waves 2 to 4 feet. .WEDNESDAY NIGHT...North winds 15 to 20 knots. Mostly cloudy early in the evening becoming partly cloudy. Waves 2 to 4 feet. .THURSDAY...Northeast winds 10 to 15 knots becoming north 15 to 20 knots early in the afternoon. Mostly sunny. 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. $$ LEZ444-200445- Michigan Waters of Lake Erie from Detroit River to North Cape MI- 439 PM EDT Tue May 19 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM EDT THIS EVENING... ...SEVERE THUNDERSTORM WATCH 230 IN EFFECT UNTIL 7 PM EDT THIS EVENING... .REST OF TONIGHT...Southwest winds 15 to 20 knots becoming west 10 to 15 knots in the late evening and early morning, then veering to the northwest early in the morning. Partly cloudy with numerous showers and thunderstorms this evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Some thunderstorms may be severe with damaging winds and large hail late in the afternoon. Some thunderstorms may produce damaging winds and large hail this evening. Waves 2 to 4 feet subsiding to 2 feet or less in the late evening and overnight. .WEDNESDAY...North winds 10 to 15 knots becoming northeast 5 to 10 knots early in the afternoon. Mostly cloudy. Waves 2 feet or less. .WEDNESDAY NIGHT...East winds 10 to 15 knots becoming northeast 15 to 20 knots in the late evening and early morning, then diminishing to 10 to 15 knots after midnight. Partly cloudy becoming mostly cloudy in the late evening and early morning becoming partly cloudy. Waves 1 to 3 feet. .THURSDAY...Northeast winds 10 to 15 knots becoming east 15 to 20 knots in the late morning and afternoon. Mostly sunny. Waves 1 to 3 feet. See Lake Erie Open Lake Forecast for days 3 through 5. The water temperature at Belle Isle is missing. $$ CB You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes