Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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104
FZUS53 KDTX 171438
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
938 AM EST Mon Nov 17 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.

LHZ422-172245-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
938 AM EST Mon Nov 17 2025

.REST OF TODAY...Northwest winds 15 to 20 knots diminishing to
10 to 15 knots in the afternoon. Partly cloudy. Waves 1 to
3 feet.
.TONIGHT...Northwest winds 10 to 15 knots diminishing to 5 to
10 knots after midnight. Mostly clear. Waves 2 feet or less.
.TUESDAY...Northwest winds 5 to 10 knots early in the morning
becoming light and variable. Partly cloudy. Waves 2 feet or less.
.TUESDAY NIGHT...Light and variable winds becoming north 5 to
10 knots in the late evening and overnight. Mostly clear. Waves
2 feet or less.

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

$$

LHZ421-172245-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
938 AM EST Mon Nov 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

.REST OF TODAY...Northwest winds 20 to 25 knots diminishing to
15 to 20 knots in the afternoon. Partly cloudy. Waves 3 to
5 feet. Waves occasionally around 6 feet.
.TONIGHT...Northwest winds 15 to 20 knots diminishing to 10 to
15 knots in the late evening and overnight. Mostly clear. Waves
2 to 4 feet subsiding to 1 to 3 feet after midnight.
.TUESDAY...Northwest winds 5 to 10 knots until late afternoon
becoming light and variable. Mostly sunny early in the morning
becoming partly cloudy. Waves 2 feet or less.
.TUESDAY NIGHT...Light and variable winds becoming north 5 to
10 knots in the late evening and overnight. Mostly clear. Waves
2 feet or less.

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

$$

LHZ441-172245-
Port Austin to Harbor Beach MI-
938 AM EST Mon Nov 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

.REST OF TODAY...Northwest winds 20 to 25 knots diminishing to
15 to 20 knots in the afternoon. Mostly cloudy. Waves 5 to
7 feet. Waves occasionally around 10 feet.
.TONIGHT...Northwest winds 15 to 20 knots diminishing to 10 to
15 knots in the late evening and overnight. 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. Waves 1 to 3 feet.
.TUESDAY NIGHT...Light and variable winds becoming north 5 to
10 knots in the late evening and overnight. Partly cloudy. Waves
2 feet or less.

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

$$

LHZ442-172245-
Harbor Beach to Port Sanilac MI-
938 AM EST Mon Nov 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

.REST OF TODAY...Northwest winds 20 to 25 knots diminishing to
15 to 20 knots in the afternoon. Partly cloudy late in the
morning becoming mostly cloudy. Waves 4 to 6 feet. Waves
occasionally around 8 feet.
.TONIGHT...Northwest winds 10 to 15 knots. Partly cloudy. Waves
2 to 4 feet subsiding to 1 to 3 feet after midnight.
.TUESDAY...Northwest winds 5 to 10 knots until late afternoon
becoming light and variable. Partly cloudy until late afternoon
becoming mostly cloudy. Waves 2 feet or less.
.TUESDAY NIGHT...North winds 5 to 10 knots. Partly cloudy. Waves
2 feet or less.

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

$$

LHZ443-172245-
Port Sanilac to Port Huron MI-
938 AM EST Mon Nov 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...

.REST OF TODAY...Northwest winds 15 to 20 knots. Partly cloudy
late in the morning becoming mostly cloudy. Waves 3 to 5 feet.
Waves occasionally around 7 feet.
.TONIGHT...Northwest winds 10 to 15 knots. Mostly clear. Waves
1 to 3 feet.
.TUESDAY...Northwest winds 5 to 10 knots veering to the northeast
early in the afternoon. Partly cloudy early in the morning
becoming mostly cloudy. A slight chance of. Waves 2 feet or less.
.TUESDAY NIGHT...North winds 5 to 10 knots. Partly cloudy. Waves
2 feet or less.

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

$$

LEZ444-172245-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
938 AM EST Mon Nov 17 2025

.REST OF TODAY...Northwest winds 10 to 15 knots. Mostly sunny.
Waves 2 feet or less.
.TONIGHT...Northwest winds 5 to 10 knots until early morning
becoming light and variable. Mostly clear until early morning
becoming mostly cloudy. A chance of light rain, light freezing
rain and snow after midnight. Waves 2 feet or less.
.TUESDAY...Light and variable winds becoming east 5 to 10 knots
in the late morning and afternoon. Cloudy. Light snow and light
rain likely until late afternoon, then light rain likely early in
the afternoon. Waves 2 feet or less.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots. Mostly cloudy
until early 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 42 degrees.

$$

KDK

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a www.weather.gov/greatlakes