771
FZUS53 KDTX 280750
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
350 AM EDT Thu Aug 28 2025

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.

LHZ422-281600-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
350 AM EDT Thu Aug 28 2025

.TODAY...West winds 15 to 20 knots diminishing to 10 to 15 knots
late in the morning, then becoming north 15 to 20 knots in the
afternoon. Cloudy with showers likely and a chance of
thunderstorms in the morning, then partly cloudy with a chance of
showers and a slight chance of thunderstorms in the afternoon. A
chance of waterspouts. Waves 1 to 3 feet.
.TONIGHT...North winds 15 to 20 knots. Mostly clear. Waves 2 to
4 feet subsiding to 1 to 3 feet after midnight.
.FRIDAY...North winds 10 to 15 knots becoming northeast 5 to
10 knots early in the afternoon. Partly cloudy. Waves 2 feet or
less.
.FRIDAY NIGHT...East winds 5 to 10 knots backing to the west
after midnight. Clear. Waves 2 feet or less.

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

$$

LHZ421-281600-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
350 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH FRIDAY MORNING...

.TODAY...West winds 15 to 20 knots veering to the north early in
the afternoon, then increasing to 20 to 25 knots late in the
afternoon. Cloudy with showers likely and a chance of
thunderstorms in the morning, then partly cloudy with a chance of
showers and a slight chance of thunderstorms in the afternoon. A
chance of waterspouts. Waves 2 to 4 feet building to 5 to 7 feet
late in the afternoon. Waves occasionally around 10 feet.
.TONIGHT...North winds 20 to 25 knots diminishing to 15 to
20 knots in the late evening and overnight. Mostly clear. A
slight chance of showers in the late evening and overnight. Waves
5 to 7 feet. Waves occasionally around 10 feet.
.FRIDAY...North winds 10 to 15 knots. Partly cloudy. Waves 3 to
5 feet. Waves occasionally around 7 feet.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots backing to the
northwest after midnight. Clear. Waves 1 to 3 feet.

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

$$

LHZ441-281600-
Port Austin to Harbor Beach MI-
350 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH FRIDAY MORNING...

.TODAY...West winds 15 to 20 knots veering to the north early in
the afternoon, then increasing to 20 to 25 knots with gusts to
30 knots late in the afternoon. Light showers and a chance of
thunderstorms in the morning, then partly cloudy with a slight
chance of showers and thunderstorms in the afternoon. A chance of
waterspouts. Waves 3 to 5 feet building to 6 to 9 feet late in
the afternoon. Waves occasionally around 12 feet.
.TONIGHT...North winds 20 to 25 knots with gusts to 30 knots
diminishing to 15 to 20 knots in the late evening and overnight.
Partly cloudy with a slight chance of showers. Waves 5 to 7 feet.
Waves occasionally around 10 feet.
.FRIDAY...North winds 10 to 15 knots. Mostly cloudy until late
afternoon becoming partly cloudy. Waves 3 to 5 feet. Waves
occasionally around 7 feet.
.FRIDAY NIGHT...North winds 10 to 15 knots becoming northwest
5 to 10 knots in the late evening and overnight. Mostly clear.
Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening
and overnight.

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

$$

LHZ442-281600-
Harbor Beach to Port Sanilac MI-
350 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH FRIDAY MORNING...

.TODAY...West winds 15 to 20 knots diminishing to 10 to 15 knots
late in the morning, then becoming northwest 15 to 20 knots in
the afternoon. Mostly cloudy with showers likely and a chance of
thunderstorms. A chance of waterspouts. Waves 1 to 3 feet
building to 5 to 7 feet. Waves occasionally around 10 feet.
.TONIGHT...North winds 20 to 25 knots diminishing to 10 to
15 knots. Partly cloudy with a slight chance of showers. Waves
4 to 6 feet. Waves occasionally around 7 feet.
.FRIDAY...North winds 10 to 15 knots. Partly cloudy becoming
mostly cloudy in the late morning and early afternoon becoming
partly cloudy. Waves 3 to 5 feet. Waves occasionally around
7 feet.
.FRIDAY NIGHT...North winds 10 to 15 knots becoming northwest
5 to 10 knots in the late evening and overnight. Mostly clear.
Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening
and overnight.

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

$$

LHZ443-281600-
Port Sanilac to Port Huron MI-
350 AM EDT Thu Aug 28 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON
THROUGH FRIDAY MORNING...

.TODAY...West winds 10 to 15 knots becoming north 15 to 20 knots
late in the afternoon. Mostly cloudy. Light showers likely and a
slight chance of thunderstorms in the morning, then showers
likely and a chance of thunderstorms in the afternoon. A chance
of waterspouts. Waves 1 to 3 feet building to 3 to 5 feet late in
the afternoon. Waves occasionally around 7 feet.
.TONIGHT...North winds 20 to 25 knots diminishing to 10 to
15 knots. A chance of waterspouts early in the evening. Partly
cloudy with a slight chance of showers. Waves 4 to 6 feet. Waves
occasionally around 8 feet.
.FRIDAY...North winds 10 to 15 knots. Partly cloudy. Waves 2 to
4 feet.
.FRIDAY NIGHT...North winds 10 to 15 knots becoming northwest
5 to 10 knots in the late evening and overnight. Mostly clear.
Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening
and overnight.

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

$$

LEZ444-281600-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
350 AM EDT Thu Aug 28 2025

.TODAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots in the afternoon. Mostly cloudy. Light showers likely
and a slight chance of thunderstorms in the morning, then showers
likely and a chance of thunderstorms in the afternoon. A chance
of waterspouts. Waves 1 to 3 feet.
.TONIGHT...Northwest winds 10 to 15 knots veering to the north in
the late evening and overnight. Partly cloudy. A chance of
thunderstorms and a slight chance of showers early in the
evening, then a slight chance of showers in the late evening and
early morning. A chance of waterspouts early in the evening. A
slight chance of waterspouts in the late evening and early
morning. Waves 1 to 3 feet.
.FRIDAY...North winds 5 to 10 knots. Mostly sunny until late
afternoon becoming partly cloudy. Waves 2 feet or less.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots. Mostly clear.
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.

$$

TF

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