674
FZUS53 KDTX 241339
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
939 AM EDT Sun Aug 24 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.

LHZ422-242145-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
939 AM EDT Sun Aug 24 2025

.REST OF TODAY...West winds 10 to 15 knots increasing to 15 to
20 knots late in the afternoon. Mostly sunny late in the morning
becoming partly cloudy. Scattered showers and isolated
thunderstorms in the afternoon. A chance of waterspouts in the
afternoon. Waves 2 feet or less.
.TONIGHT...West winds 15 to 20 knots diminishing to 10 to
15 knots after midnight. Partly cloudy. Scattered showers and
isolated thunderstorms early in the evening. A slight chance of
waterspouts early in the evening. Waves 1 to 3 feet.
.MONDAY...West winds 10 to 15 knots becoming northwest 15 to
20 knots early in the afternoon. Partly cloudy. A slight chance
of until late afternoon. A slight chance of showers until late
afternoon, then a chance of showers early in the afternoon. Waves
1 to 3 feet.
.MONDAY NIGHT...Northwest winds 15 to 20 knots. Mostly clear. A
chance of showers early in the evening. Waves 1 to 3 feet.

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

$$

LHZ421-242145-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
939 AM EDT Sun Aug 24 2025

.REST OF TODAY...West winds 10 to 15 knots increasing to 15 to
20 knots in the afternoon. Mostly sunny late in the morning
becoming partly cloudy. Isolated showers late in the morning,
then numerous showers and scattered thunderstorms in the
afternoon. A slight chance of waterspouts. Waves 1 to 3 feet.
.TONIGHT...Northwest winds 15 to 20 knots. Partly cloudy.
Scattered showers and thunderstorms early in the evening, then
isolated showers in the late evening and early morning. A slight
chance of waterspouts until early morning. Waves 1 to 3 feet
building to 2 to 4 feet after midnight.
.MONDAY...Northwest winds 15 to 20 knots. Partly cloudy. A slight
chance of showers until late afternoon, then a chance of showers
early in the afternoon. A slight chance of waterspouts until late
afternoon. Waves 2 to 4 feet.

.MONDAY NIGHT...Northwest winds 15 to 20 knots. Mostly clear. A
chance of showers early in the evening. Waves 3 to 5 feet. Waves
occasionally around 7 feet. A Small Craft Advisory may be needed.

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

$$

LHZ441-242145-
Port Austin to Harbor Beach MI-
939 AM EDT Sun Aug 24 2025

.REST OF TODAY...West winds 10 to 15 knots. Sunny late in the
morning, then partly cloudy with numerous showers and scattered
thunderstorms in the afternoon. A slight chance of waterspouts in
the afternoon. Waves 1 to 3 feet.
.TONIGHT...Northwest winds 15 to 20 knots. Partly cloudy. A
chance of waterspouts early in the evening. A slight chance of
waterspouts in the late evening and overnight. Numerous showers
and scattered thunderstorms early in the evening, then scattered
showers and isolated thunderstorms in the late evening and early
morning. Isolated showers after midnight. Waves 1 to 3 feet
building to 2 to 4 feet in the late evening and overnight.
.MONDAY...Northwest winds 15 to 20 knots diminishing to 10 to 15
knots early in the afternoon. Partly cloudy with a chance of showers.
A slight chance of waterspouts. Waves 3 to 5 feet. Waves occasionally
around 7 feet. A Small Craft Advisory may be needed.
.MONDAY NIGHT...Northwest winds 15 to 20 knots. Partly cloudy. A
chance of showers early in the evening. Waves 4 to 6 feet. Waves
occasionally around 8 feet.

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

$$

LHZ442-242145-
Harbor Beach to Port Sanilac MI-
939 AM EDT Sun Aug 24 2025

.REST OF TODAY...West winds 5 to 10 knots increasing to 10 to
15 knots in the afternoon. Sunny late in the morning, then partly
cloudy with scattered showers and thunderstorms in the afternoon.
A slight chance of waterspouts in the afternoon. Waves 2 feet or
less.
.TONIGHT...West winds 10 to 15 knots. Partly cloudy. A chance of
waterspouts early in the evening. A slight chance of waterspouts
in the late evening and overnight. Numerous showers and scattered
thunderstorms early in the evening, then isolated thunderstorms
in the late evening and early morning. Isolated showers in the
late evening and overnight. Waves 1 to 3 feet.
.MONDAY...Northwest winds 10 to 15 knots. Partly cloudy. A chance
of showers. A slight chance of waterspouts. Waves 2 to 4 feet.
.MONDAY NIGHT...Northwest winds 10 to 15 knots. Partly cloudy. A
chance of showers early in the evening. Waves 2 to 4 feet.

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

$$

LHZ443-242145-
Port Sanilac to Port Huron MI-
939 AM EDT Sun Aug 24 2025

.REST OF TODAY...West winds 10 to 15 knots. Sunny late in the
morning, then partly cloudy with scattered showers and isolated
thunderstorms in the afternoon. A slight chance of waterspouts in
the afternoon. Waves 2 feet or less.
.TONIGHT...West winds 10 to 15 knots. Partly cloudy. Scattered
showers and isolated thunderstorms early in the evening, then
isolated showers in the late evening and early morning. A slight
chance of waterspouts until early morning. Waves 2 feet or less.
.MONDAY...West winds 10 to 15 knots. Partly cloudy. A chance of
showers. Waves 1 to 3 feet.
.MONDAY NIGHT...Northwest winds 10 to 15 knots. Mostly clear. A
chance of showers early in the evening. Waves 1 to 3 feet.

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

$$

LEZ444-242145-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
939 AM EDT Sun Aug 24 2025

.REST OF TODAY...West winds 5 to 10 knots increasing to 10 to
15 knots in the afternoon. Sunny late in the morning, then partly
cloudy with isolated showers in the afternoon. Waves 2 feet or
less.
.TONIGHT...West winds 15 to 20 knots becoming northwest 10 to
15 knots after midnight. Mostly clear. A slight chance of
waterspouts early in the evening. Waves 2 feet or less.
.MONDAY...West winds 10 to 15 knots. Mostly sunny with a slight
chance of showers until late afternoon, then partly cloudy early
in the afternoon. A slight chance of. Waves 2 feet or less.
.MONDAY NIGHT...Northwest winds 10 to 15 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 72 degrees.

$$

SS

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