Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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771
FZUS53 KDTX 222043
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
343 PM EST Sat Nov 22 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.

LHZ422-230445-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
343 PM EST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY AFTERNOON...

.TONIGHT...South winds 10 to 15 knots becoming southwest 15 to
20 knots in the late evening and early morning, then veering to
the west early in the morning. Mostly cloudy with a slight chance
of light rain in the evening, then partly cloudy after midnight.
Waves 1 to 3 feet building to 2 to 4 feet after midnight.
.SUNDAY...West winds 15 to 20 knots. Gusts to 30 knots in the
late morning and early afternoon. Partly cloudy until late
afternoon then clearing. Waves 2 to 4 feet.
.SUNDAY NIGHT...West winds 10 to 15 knots becoming southwest 5 to
10 knots after midnight. Mostly clear. Waves 2 feet or less.
.MONDAY...South winds 10 to 15 knots. Partly cloudy. Waves 2 feet
or less.

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

$$

LHZ421-230445-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
343 PM EST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST SUNDAY THROUGH
SUNDAY EVENING...

.TONIGHT...Southwest winds 10 to 15 knots increasing to 15 to
20 knots with gusts to 25 knots overnight. Mostly cloudy with a
slight chance of light rain in the evening, then partly cloudy
after midnight. Waves 1 to 3 feet building to 2 to 4 feet in the
late evening and overnight.
.SUNDAY...West winds 15 to 20 knots increasing to 20 to 25 knots
with gusts to 30 knots in the late morning and early afternoon,
then becoming northwest 15 to 20 knots with gusts to 30 knots
early in the afternoon. Partly cloudy until late afternoon
becoming mostly sunny. Waves 3 to 5 feet. Waves occasionally
around 7 feet.
.SUNDAY NIGHT...Northwest winds 15 to 20 knots becoming west
10 to 15 knots in the late evening and overnight. Mostly clear.
Waves 3 to 5 feet subsiding to 1 to 3 feet in the late evening
and overnight. Waves occasionally around 7 feet.
.MONDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. Partly cloudy. Waves
1 to 3 feet.

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

$$

LHZ441-230445-
Port Austin to Harbor Beach MI-
343 PM EST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EST SUNDAY THROUGH
SUNDAY EVENING...

.TONIGHT...Southwest winds 10 to 15 knots increasing to 15 to
20 knots with gusts to 25 knots overnight. Mostly cloudy. A
slight chance of light rain and snow in the evening, then a slight
chance of light rain after midnight. Waves 1 to 3 feet building
to 2 to 4 feet after midnight.
.SUNDAY...West winds 15 to 20 knots increasing to 20 to 25 knots
in the late morning and early afternoon, then becoming northwest
15 to 20 knots early in the afternoon. Gusts to 30 knots. Mostly
cloudy until late afternoon becoming partly cloudy. Waves 3 to
5 feet. Waves occasionally around 6 feet.
.SUNDAY NIGHT...Northwest winds 15 to 20 knots becoming west 5 to
10 knots. Mostly clear. Waves 3 to 5 feet subsiding to 1 to
3 feet after midnight. Waves occasionally around 7 feet.
.MONDAY...South winds 10 to 15 knots. Partly cloudy. Waves 1 to
3 feet.

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

$$

LHZ442-230445-
Harbor Beach to Port Sanilac MI-
343 PM EST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY AFTERNOON...

.TONIGHT...Southwest winds 5 to 10 knots increasing to 15 to
20 knots. Mostly cloudy with a slight chance of light rain. Waves
1 to 3 feet.
.SUNDAY...West winds 15 to 20 knots. Gusts to 30 knots in the
late morning and afternoon. Partly cloudy until late afternoon
becoming mostly sunny. Waves 1 to 3 feet building to 2 to 4 feet
in the late morning and afternoon.
.SUNDAY NIGHT...Northwest winds 15 to 20 knots becoming west 5 to
10 knots. Mostly clear. Waves 2 to 4 feet subsiding to 1 to
3 feet after midnight.
.MONDAY...South winds 10 to 15 knots. Partly cloudy. Waves 1 to
3 feet.

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

$$

LHZ443-230445-
Port Sanilac to Port Huron MI-
343 PM EST Sat Nov 22 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY AFTERNOON...

.TONIGHT...Southwest winds 5 to 10 knots increasing to 15 to
20 knots. Mostly cloudy in the evening becoming partly cloudy. A
slight chance of light rain. Waves 1 to 3 feet.
.SUNDAY...West winds 15 to 20 knots. Gusts to 30 knots in the
late morning and early afternoon. Partly cloudy until late
afternoon becoming mostly sunny. Waves 1 to 3 feet.
.SUNDAY NIGHT...Northwest winds 15 to 20 knots becoming west 5 to
10 knots. Mostly clear. Waves 1 to 3 feet.
.MONDAY...South winds 10 to 15 knots. Partly cloudy. Waves 1 to
3 feet.

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

$$

LEZ444-230445-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
343 PM EST Sat Nov 22 2025

.TONIGHT...South winds 5 to 10 knots becoming southwest 15 to
20 knots. Partly cloudy. Waves 2 feet or less.
.SUNDAY...West winds 15 to 20 knots diminishing to 10 to 15 knots
late. Partly cloudy until late afternoon then clearing. Waves 1
to 3 feet.
.SUNDAY NIGHT...West winds 5 to 15 knots until early morning
becoming light and variable. Clear. Waves 2 feet or less.
.MONDAY...South winds 5 to 10 knots. 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 43 degrees.

$$

SF

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