National Weather Service Marine Forecast FZUS53 KDTX

FZUS53 KDTX 241946
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
346 PM EDT Mon Aug 24 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.

LHZ422-250400
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI
346 PM EDT Mon Aug 24 2026

TONIGHT
Northwest winds 10 to 15 knots becoming north 5 to 10 knots early in the morning. Partly cloudy. Waves 2 feet or less.

TUESDAY
Northwest winds 5 to 10 knots early in the morning becoming light and variable, then becoming southeast 5 to 10 knots early in the afternoon. Mostly sunny. Waves 2 feet or less.

TUESDAY NIGHT
South winds 10 to 15 knots. Partly cloudy. Waves 2 feet or less.

WEDNESDAY
South winds 10 to 15 knots becoming southwest 15 to 20 knots in the late morning and afternoon. Mostly sunny until late afternoon, then partly cloudy with showers likely and a chance of thunderstorms early in the afternoon. Waves 1 to 3 feet.

See Lake Huron Open Lake Forecast for days 3 through 5.

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LHZ421-250400
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner Saginaw Bay
346 PM EDT Mon Aug 24 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING

TONIGHT
North winds 10 to 15 knots. Mostly cloudy in the evening becoming mostly clear. Waves 1 to 3 feet.

TUESDAY
Northwest winds 5 to 10 knots backing to the south early in the afternoon. Mostly sunny. Waves 2 feet or less.

TUESDAY NIGHT
South winds 10 to 15 knots. Partly cloudy. Waves 2 feet or less.

WEDNESDAY
South winds 10 to 15 knots increasing to 15 to 20 knots in the late morning and afternoon. Mostly sunny until late afternoon, then partly cloudy with showers likely and a chance of thunderstorms early in the afternoon. Waves 1 to 3 feet.

See Lake Huron Open Lake Forecast for days 3 through 5.

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LHZ441-250400
Port Austin to Harbor Beach MI
346 PM EDT Mon Aug 24 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING

TONIGHT
Northwest winds 15 to 20 knots becoming north 10 to 15 knots in the late evening and overnight. Mostly cloudy in the evening becoming partly cloudy. Waves 3 to 5 feet. Waves occasionally around 7 feet.

TUESDAY
Northwest winds 5 to 10 knots until late afternoon becoming light and variable. Partly cloudy early in the morning becoming mostly sunny. Waves 1 to 3 feet.

TUESDAY 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.

WEDNESDAY
South winds 10 to 15 knots. Partly cloudy until late afternoon, then a chance of showers and thunderstorms early in the afternoon. Waves 2 feet or less.

See Lake Huron Open Lake Forecast for days 3 through 5.

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LHZ442-250400
Harbor Beach to Port Sanilac MI
346 PM EDT Mon Aug 24 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING

TONIGHT
Northwest winds 10 to 15 knots. Mostly cloudy in the evening becoming partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and overnight.

TUESDAY
Northwest winds 5 to 10 knots veering to the northeast early in the afternoon. Partly cloudy until late afternoon becoming mostly sunny. Waves 2 feet or less.

TUESDAY 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.

WEDNESDAY
South winds 10 to 15 knots. Partly cloudy until late afternoon, then mostly sunny with a chance of showers early in the afternoon. Waves 1 to 3 feet.

See Lake Huron Open Lake Forecast for days 3 through 5.

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LHZ443-250400
Port Sanilac to Port Huron MI
346 PM EDT Mon Aug 24 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING

TONIGHT
Northwest winds 10 to 15 knots diminishing to 5 to 10 knots this evening, then increasing to 10 to 15 knots after midnight diminishing to 5 to 10 knots early in the morning. Mostly cloudy in the evening becoming mostly clear. Waves 1 to 3 feet.

TUESDAY
Northwest winds 5 to 10 knots veering to the northeast early in the afternoon. Mostly sunny becoming partly cloudy in the late morning and early afternoon becoming mostly sunny. Waves 2 feet or less.

TUESDAY NIGHT
East winds 5 to 10 knots veering to the southeast in the late evening and early morning, then becoming south 10 to 15 knots after midnight. Partly cloudy. Waves 2 feet or less.

WEDNESDAY
South winds 10 to 15 knots. Mostly sunny. Waves 2 feet or less.

See Lake Huron Open Lake Forecast for days 3 through 5.

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LEZ444-250400
Michigan Waters of Lake Erie from Detroit River to North Cape MI
346 PM EDT Mon Aug 24 2026

TONIGHT
West winds 10 to 15 knots becoming northwest 5 to 10 knots in the late evening and overnight. Mostly clear. Waves 2 feet or less.

TUESDAY
Northwest winds 5 to 10 knots early in the morning becoming light and variable, then becoming southeast 5 to 10 knots early in the afternoon. Mostly sunny. Waves 2 feet or less.

TUESDAY NIGHT
South winds 5 to 10 knots. Partly cloudy. Waves 2 feet or less.

WEDNESDAY
Southwest winds 5 to 10 knots increasing to 10 to 15 knots early in the afternoon. Mostly sunny early in the morning 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 70 degrees.

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AM

You can obtain your latest National Weather Service forecasts online a www.weather.gov/greatlakes