981
FZUS53 KDTX 130139
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
939 PM EDT Thu Jun 12 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.

LHZ422-130945-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
939 PM EDT Thu Jun 12 2025

.REST OF TONIGHT...Northeast winds 15 to 20 knots diminishing to
10 to 15 knots after midnight. Partly cloudy this evening
becoming mostly cloudy. Waves 1 to 3 feet.
.FRIDAY...Northeast winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. Mostly cloudy in the
morning becoming partly cloudy. A slight chance of showers. Waves
1 to 3 feet building to 2 to 4 feet early in the afternoon.
.FRIDAY NIGHT...Northeast winds 15 to 20 knots. Partly cloudy
with a slight chance of showers in the evening, then mostly
cloudy with a chance of showers after midnight. Waves 2 to 4 feet
subsiding to 1 to 3 feet after midnight.
.SATURDAY...Northeast winds 10 to 15 knots increasing to 15 to
20 knots early in the afternoon. Partly cloudy in the morning
becoming mostly sunny. Waves 1 to 3 feet.

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

$$

LHZ421-130945-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
939 PM EDT Thu Jun 12 2025

.REST OF TONIGHT...Northeast winds 10 to 15 knots. Partly cloudy
this evening becoming mostly cloudy. Waves 1 to 3 feet.
.FRIDAY...Northeast winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. Mostly cloudy in the
morning becoming partly cloudy. A slight chance of showers. Waves
1 to 3 feet building to 2 to 4 feet early in the afternoon.
.FRIDAY NIGHT...Northeast winds 15 to 20 knots. Mostly cloudy. A
slight chance of showers in the evening, then a chance of showers
after midnight. Waves 2 to 4 feet.
.SATURDAY...Northeast winds 10 to 15 knots increasing to 15 to
20 knots early in the afternoon. Partly cloudy. Waves 1 to
3 feet.

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

$$

LHZ441-130945-
Port Austin to Harbor Beach MI-
939 PM EDT Thu Jun 12 2025

.REST OF TONIGHT...Northeast winds 5 to 10 knots. Partly cloudy.
Waves 2 feet or less.
.FRIDAY...Northeast winds 10 to 15 knots. Mostly cloudy in the
morning, then partly cloudy with a slight chance of showers in
the afternoon. Waves 1 to 3 feet.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots. Mostly cloudy. A
slight chance of showers in the evening, then a chance of showers
after midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight.
.SATURDAY...East winds 10 to 15 knots becoming northeast 5 to
10 knots early in the afternoon. Partly cloudy. Waves 1 to
3 feet.

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

$$

LHZ442-130945-
Harbor Beach to Port Sanilac MI-
939 PM EDT Thu Jun 12 2025

.REST OF TONIGHT...Northeast winds 5 to 10 knots. Partly cloudy
this evening becoming mostly cloudy. Waves 2 feet or less.
.FRIDAY...Northeast winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon. Mostly cloudy in the morning
becoming partly cloudy. Waves 2 feet or less.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots becoming east 5 to
10 knots after midnight. Mostly cloudy. A slight chance of
showers in the evening, then a chance of showers after midnight.
Waves 1 to 3 feet.
.SATURDAY...Northeast winds 5 to 10 knots. Partly cloudy. Waves
2 feet or less.

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

$$

LHZ443-130945-
Port Sanilac to Port Huron MI-
939 PM EDT Thu Jun 12 2025

.REST OF TONIGHT...Northeast winds 5 to 10 knots. Partly cloudy
this evening becoming mostly cloudy. Waves 2 feet or less.
.FRIDAY...Northeast winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon. Partly cloudy. Waves 2 feet or
less.
.FRIDAY NIGHT...Northeast winds 10 to 15 knots becoming east 5 to
10 knots in the late evening and overnight. Mostly cloudy. A
slight chance of showers in the evening, then a chance of showers
after midnight. Waves 1 to 3 feet.
.SATURDAY...East winds 5 to 10 knots. Partly cloudy. Waves 2 feet
or less.

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

$$

LEZ444-130945-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
939 PM EDT Thu Jun 12 2025

.REST OF TONIGHT...East winds 10 to 15 knots. Mostly cloudy.
Waves 1 to 3 feet.
.FRIDAY...East winds 10 to 15 knots. Mostly cloudy with a slight
chance of showers and thunderstorms. Waves 2 to 4 feet subsiding
to 1 to 3 feet early in the afternoon.
.FRIDAY NIGHT...East winds 10 to 15 knots diminishing to 5 to
10 knots after midnight. Mostly cloudy with a chance of showers
and a slight chance of thunderstorms. Waves 1 to 3 feet.
.SATURDAY...East winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon. Mostly cloudy. A chance of showers in the
morning. Waves 1 to 3 feet.

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

The water temperature at Belle Isle is 64 degrees.

$$

SC

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a www.weather.gov/greatlakes