Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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FZUS53 KDTX 140154
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
954 PM EDT Mon Oct 13 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.

LHZ422-141000-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
954 PM EDT Mon Oct 13 2025

.REST OF TONIGHT...East winds 5 to 10 knots this evening becoming
light and variable, then becoming northwest 5 to 10 knots early
in the morning. Partly cloudy. Waves 2 feet or less.
.TUESDAY...North winds 10 to 15 knots becoming northeast 5 to
10 knots early in the afternoon. Partly cloudy early in the
morning then clearing. Waves 2 feet or less.
.TUESDAY NIGHT...North winds 10 to 15 knots increasing to 15 to
20 knots after midnight. Partly cloudy until early morning, then
mostly cloudy with a chance of showers after midnight. Waves
2 feet or less.
.WEDNESDAY...North winds 10 to 15 knots becoming northeast 5 to
10 knots early in the afternoon. Partly cloudy with a chance of
showers until late afternoon, then sunny early in the afternoon.
Waves 2 feet or less.

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

$$

LHZ421-141000-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
954 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH
WEDNESDAY AFTERNOON...

.REST OF TONIGHT...Southeast winds 5 to 10 knots this evening
becoming light and variable, then becoming west 5 to 10 knots
early in the morning. Mostly clear. Waves 2 feet or less.
.TUESDAY...North winds 10 to 15 knots. Partly cloudy early in the
morning then clearing. Waves 1 to 3 feet building to 2 to 4 feet
in the late morning and afternoon.
.TUESDAY NIGHT...North winds 15 to 20 knots. Partly cloudy until
early morning, then mostly cloudy with a chance of showers after
midnight. Waves 3 to 5 feet. Waves occasionally around 6 feet.
.WEDNESDAY...North winds 10 to 15 knots. Partly cloudy with a
chance of showers early in the morning, then mostly sunny in the
late morning and afternoon. Waves 2 to 4 feet subsiding to 1 to
3 feet early in the afternoon.

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

$$

LHZ441-141000-
Port Austin to Harbor Beach MI-
954 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH
WEDNESDAY AFTERNOON...

.REST OF TONIGHT...Southeast winds 5 to 10 knots veering to the
southwest early in the morning. Clear this evening becoming
partly cloudy. Waves 2 feet or less.
.TUESDAY...Northwest winds 10 to 15 knots becoming north 15 to
20 knots in the late morning and early afternoon, then
diminishing to 10 to 15 knots early in the afternoon. Partly
cloudy early in the morning then clearing. Waves 1 to 3 feet
building to 3 to 5 feet in the late morning and afternoon. Waves
occasionally around 7 feet.
.TUESDAY NIGHT...North winds 15 to 20 knots. Partly cloudy until
early morning, then mostly cloudy with a chance of showers after
midnight. Waves 4 to 6 feet. Waves occasionally around 8 feet.
.WEDNESDAY...North winds 15 to 20 knots diminishing to 10 to
15 knots in the late morning and afternoon. Mostly cloudy early
in the morning then clearing. Waves 3 to 5 feet subsiding to 2 to
4 feet early in the afternoon. Waves occasionally around 7 feet.

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

$$

LHZ442-141000-
Harbor Beach to Port Sanilac MI-
954 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH
WEDNESDAY AFTERNOON...

.REST OF TONIGHT...East winds 5 to 10 knots veering to the
southwest early in the morning. Mostly clear. Waves 2 feet or
less.
.TUESDAY...West winds 5 to 10 knots becoming north 10 to 15 knots
in the late morning and early afternoon, then increasing to 15 to
20 knots early in the afternoon. Partly cloudy until late
afternoon then clearing. Waves 2 feet or less building to 2 to
4 feet in the late morning and afternoon.
.TUESDAY NIGHT...North winds 15 to 20 knots. Mostly clear until
early morning becoming mostly cloudy. A chance of showers after
midnight. Waves 4 to 6 feet. Waves occasionally around 8 feet.
.WEDNESDAY...North winds 10 to 15 knots. Partly cloudy with a
chance of showers until late afternoon, then sunny early in the
afternoon. Waves 3 to 5 feet. Waves occasionally around 7 feet.

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

$$

LHZ443-141000-
Port Sanilac to Port Huron MI-
954 PM EDT Mon Oct 13 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM TUESDAY AFTERNOON THROUGH
WEDNESDAY AFTERNOON...

.REST OF TONIGHT...Southeast winds 5 to 10 knots veering to the
south early in the morning. Mostly clear. Waves 2 feet or less.
.TUESDAY...West winds 5 to 10 knots becoming north 10 to 15 knots
in the late morning and early afternoon, then increasing to 15 to
20 knots early in the afternoon. Partly cloudy until late
afternoon then clearing. Waves 2 feet or less building to 2 to
4 feet early in the afternoon.
.TUESDAY NIGHT...North winds 15 to 20 knots. Clear becoming
partly cloudy in the late evening and early morning becoming
mostly cloudy. A chance of showers after midnight. Waves 3 to
5 feet. Waves occasionally around 7 feet.
.WEDNESDAY...North winds 15 to 20 knots diminishing to 10 to
15 knots in the late morning and afternoon. Partly cloudy with a
chance of showers until late afternoon, then mostly sunny early
in the afternoon. Waves 2 to 4 feet.

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

$$

LEZ444-141000-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
954 PM EDT Mon Oct 13 2025

.REST OF TONIGHT...East winds 5 to 10 knots backing to the north
early in the morning. Mostly clear. Waves 2 feet or less.
.TUESDAY...Northeast winds 5 to 10 knots. Mostly sunny. Waves
2 feet or less.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots increasing to
10 to 15 knots in the late evening and overnight. Mostly clear.
Waves 2 feet or less.
.WEDNESDAY...North winds 10 to 15 knots diminishing to 5 to
10 knots in the late morning and afternoon. Partly cloudy with a
chance of showers until late afternoon, then mostly sunny early
in the afternoon. Waves 2 feet or less.

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

The water temperature at Belle Isle is 62 degrees.

$$

MR

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