Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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566
FZUS53 KDTX 130803
NSHDTX

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

LHZ422-131615-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
403 AM EDT Sun Jul 13 2025

.TODAY...Southwest winds 5 to 10 knots. Mostly sunny in the
morning becoming partly cloudy. Waves 2 feet or less.
.TONIGHT...West winds 5 to 10 knots. Partly cloudy in the evening
then clearing. Waves 2 feet or less.
.MONDAY...West winds 5 to 10 knots becoming southwest 10 to
15 knots in the late morning and afternoon. Sunny. Waves 2 feet
or less.
.MONDAY NIGHT...Southwest winds 5 to 10 knots veering to the
northwest after midnight. Clear. Waves 2 feet or less.

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

$$

LHZ421-131615-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
403 AM EDT Sun Jul 13 2025

.TODAY...West winds 10 to 15 knots becoming southwest 5 to
10 knots in the late morning and afternoon. Mostly sunny in the
morning becoming partly cloudy. Waves 2 feet or less.
.TONIGHT...West winds 5 to 10 knots. Partly cloudy in the evening
then clearing. Waves 2 feet or less.
.MONDAY...West winds 5 to 10 knots becoming southwest 10 to
15 knots in the late morning and afternoon. Sunny. Waves 1 to
3 feet.
.MONDAY NIGHT...Southwest winds 5 to 10 knots veering to the
north after midnight. Clear. Waves 2 feet or less.

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

$$

LHZ441-131615-
Port Austin to Harbor Beach MI-
403 AM EDT Sun Jul 13 2025

.TODAY...West winds 5 to 10 knots. Mostly sunny. Waves 2 feet or
less.
.TONIGHT...Southwest winds 5 to 10 knots. Partly cloudy. Waves
2 feet or less.
.MONDAY...Southwest winds 5 to 10 knots. Sunny. Waves 2 feet or
less.
.MONDAY NIGHT...Southwest winds 5 to 10 knots veering to the west
after midnight. Clear. Waves 2 feet or less.

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

$$

LHZ442-131615-
Harbor Beach to Port Sanilac MI-
403 AM EDT Sun Jul 13 2025

.TODAY...Southwest winds 5 to 10 knots. Partly cloudy with a
slight chance of showers. Waves 2 feet or less.
.TONIGHT...Light and variable winds becoming southwest 5 to
10 knots in the late evening and overnight. Partly cloudy. Waves
2 feet or less.
.MONDAY...West winds 5 to 10 knots backing to the south early in
the afternoon. Sunny. Waves 2 feet or less.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Clear. Waves
2 feet or less.

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

$$

LHZ443-131615-
Port Sanilac to Port Huron MI-
403 AM EDT Sun Jul 13 2025

.TODAY...West winds 5 to 10 knots until late afternoon becoming
light and variable. Partly cloudy. A chance of showers in the
morning, then a slight chance of showers in the afternoon. Waves
2 feet or less.
.TONIGHT...Light and variable winds becoming west 5 to 10 knots
in the late evening and overnight. Partly cloudy. A slight chance
of showers in the evening. Waves 2 feet or less.
.MONDAY...West winds 5 to 10 knots early in the morning becoming
light and variable. Sunny. Waves 2 feet or less.
.MONDAY NIGHT...Light and variable winds becoming southwest 5 to
10 knots in the late evening and overnight. Clear. Waves 2 feet
or less.

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

$$

LEZ444-131615-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
403 AM EDT Sun Jul 13 2025

.TODAY...Southwest winds 5 to 10 knots. Partly cloudy. A chance
of showers in the morning, then a slight chance of showers in the
afternoon. Waves 2 feet or less.
.TONIGHT...Northwest winds 5 to 10 knots. Partly cloudy. A slight
chance of showers and thunderstorms in the evening. Waves 2 feet
or less.
.MONDAY...Northwest winds 5 to 10 knots early in the morning
becoming light and variable. Sunny. Waves 2 feet or less.
.MONDAY NIGHT...Light and variable winds. Clear. 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.

$$

BT

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