Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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FZUS53 KDTX 170836
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
336 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.

LHZ422-171645-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
336 AM EST Mon Nov 17 2025

.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.

$$

LHZ421-171645-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
336 AM EST Mon Nov 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...Northwest winds 20 to 25 knots diminishing to 15 to
20 knots in the afternoon. Partly cloudy. Waves 4 to 6 feet.
Waves occasionally around 8 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.

$$

LHZ441-171645-
Port Austin to Harbor Beach MI-
336 AM EST Mon Nov 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.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.

$$

LHZ442-171645-
Harbor Beach to Port Sanilac MI-
336 AM EST Mon Nov 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...Northwest winds 20 to 25 knots diminishing to 15 to
20 knots in the afternoon. Partly cloudy in the morning becoming
mostly cloudy. Waves 4 to 6 feet. Waves occasionally around
7 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.

$$

LHZ443-171645-
Port Sanilac to Port Huron MI-
336 AM EST Mon Nov 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...Northwest winds 15 to 20 knots. Partly cloudy 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. 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.

$$

LEZ444-171645-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
336 AM EST Mon Nov 17 2025

.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.

$$

SC

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a www.weather.gov/greatlakes