Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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787
FZUS53 KDTX 061047
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
647 AM EDT Sun Jul 6 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.

LHZ422-061900-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
647 AM EDT Sun Jul 6 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING...

.TODAY...Southwest winds 15 to 20 knots veering to the west late
in the afternoon. Partly cloudy in the morning becoming mostly
cloudy. A chance of showers and thunderstorms. Waves 2 to 4 feet.
.TONIGHT...North winds 15 to 20 knots. Mostly cloudy. A chance of
showers and thunderstorms in the evening, then a slight chance of
showers after midnight. Waves 1 to 3 feet.
.MONDAY...Northeast winds 10 to 15 knots. Mostly cloudy in the
morning becoming partly cloudy. Waves 1 to 3 feet.
.MONDAY NIGHT...Northeast winds 10 to 15 knots diminishing to
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.

$$

LHZ421-061900-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
647 AM EDT Sun Jul 6 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING...

.TODAY...Southwest winds 15 to 20 knots veering to the west late
in the afternoon. Partly cloudy with a chance of showers and a
slight chance of thunderstorms in the morning, then mostly cloudy
with a chance of showers and thunderstorms in the afternoon.
Waves 2 to 4 feet.
.TONIGHT...North winds 15 to 20 knots. Mostly cloudy. A chance of
showers and thunderstorms in the evening, then a slight chance of
showers after midnight. Waves 2 to 4 feet.
.MONDAY...Northeast winds 15 to 20 knots diminishing to 10 to
15 knots in the late morning and afternoon. Mostly cloudy in the
morning becoming partly cloudy. Waves 1 to 3 feet.
.MONDAY NIGHT...Northeast winds 10 to 15 knots diminishing to
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.

$$

LHZ441-061900-
Port Austin to Harbor Beach MI-
647 AM EDT Sun Jul 6 2025

.TODAY...Southwest winds 15 to 20 knots veering to the west late
in the afternoon. Mostly sunny with a chance of showers and a
slight chance of thunderstorms in the morning, then mostly cloudy
with showers likely and a chance of thunderstorms in the
afternoon. Waves 2 to 4 feet.
.TONIGHT...North winds 10 to 15 knots. Cloudy. Showers likely and
a chance of thunderstorms in the evening, then a chance of
showers after midnight. Waves 1 to 3 feet.
.MONDAY...North winds 10 to 15 knots. Mostly cloudy in the
morning becoming partly cloudy. Waves 1 to 3 feet.
.MONDAY NIGHT...North winds 5 to 10 knots. Mostly clear. Waves
2 feet or less.

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

$$

LHZ442-061900-
Harbor Beach to Port Sanilac MI-
647 AM EDT Sun Jul 6 2025

.TODAY...Southwest winds 10 to 15 knots veering to the west late
in the afternoon. Mostly sunny with a slight chance of showers
and thunderstorms in the morning, then mostly cloudy with showers
likely and a chance of thunderstorms in the afternoon. Waves
2 feet or less.
.TONIGHT...North winds 10 to 15 knots. Cloudy. Showers likely and
a chance of thunderstorms in the evening, then a chance of
showers after midnight. Waves 1 to 3 feet.
.MONDAY...North winds 10 to 15 knots. Mostly cloudy in the
morning becoming partly cloudy. Waves 1 to 3 feet.
.MONDAY NIGHT...North winds 10 to 15 knots diminishing to 5 to
10 knots in the late evening and overnight. Mostly clear. Waves
1 to 3 feet.

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

$$

LHZ443-061900-
Port Sanilac to Port Huron MI-
647 AM EDT Sun Jul 6 2025

.TODAY...Southwest winds 10 to 15 knots. Mostly sunny in the
morning, then partly cloudy with a chance of thunderstorms and a
slight chance of showers in the afternoon. Waves 2 feet or less.
.TONIGHT...Northwest winds 10 to 15 knots. Mostly cloudy. Showers
likely and a chance of thunderstorms in the evening, then a
chance of showers after midnight. Waves 1 to 3 feet.
.MONDAY...North winds 10 to 15 knots. Mostly cloudy in the
morning becoming partly cloudy. Waves 1 to 3 feet.
.MONDAY NIGHT...North winds 10 to 15 knots diminishing to 5 to
10 knots after midnight. Mostly clear. Waves 1 to 3 feet.

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

$$

LEZ444-061900-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
647 AM EDT Sun Jul 6 2025

.TODAY...Southwest winds 10 to 15 knots. Mostly sunny. Light
showers likely and a chance of thunderstorms in the afternoon.
Waves 1 to 3 feet.
.TONIGHT...West winds 10 to 15 knots becoming northwest 5 to
10 knots in the late evening and overnight. Partly cloudy with
showers likely and a chance of thunderstorms in the evening, then
mostly cloudy with a chance of showers and thunderstorms after
midnight. Waves 2 feet or less.
.MONDAY...North winds 5 to 10 knots. Mostly cloudy with a chance
of showers and thunderstorms. Waves 2 feet or less.
.MONDAY NIGHT...Northeast winds 5 to 10 knots. 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 75 degrees.

$$

MR

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a www.weather.gov/greatlakes