Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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351
FZUS53 KDTX 170822
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
422 AM EDT Tue Jun 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.

LHZ422-171630-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
422 AM EDT Tue Jun 17 2025

.TODAY...Southwest winds 10 to 15 knots. Mostly sunny. A chance
of showers and a slight chance of thunderstorms in the afternoon.
Waves 2 feet or less.
.TONIGHT...West winds 10 to 15 knots becoming northwest 5 to
10 knots in the late evening and early morning, then veering to
the northeast after midnight. Partly cloudy. A slight chance of
showers and thunderstorms in the evening, then a chance of
showers and a slight chance of thunderstorms after midnight.
Waves 2 feet or less.
.WEDNESDAY...East winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon. Light showers likely in the
morning, then showers and a chance of thunderstorms in the
afternoon. Waves 2 feet or less.
.WEDNESDAY NIGHT...East winds 10 to 15 knots becoming southeast
15 to 20 knots in the late evening and early morning, then
veering to the southwest after midnight. Mostly cloudy. Rain
showers and a chance of thunderstorms in the evening, then
showers likely and a chance of thunderstorms after midnight.
Waves 1 to 3 feet.

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

$$

LHZ421-171630-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
422 AM EDT Tue Jun 17 2025

.TODAY...South winds 10 to 15 knots. Mostly sunny. A slight
chance of showers and thunderstorms in the afternoon. Waves
2 feet or less.
.TONIGHT...Southwest winds 10 to 15 knots becoming north 5 to
10 knots in the late evening and early morning, then veering to
the northeast after midnight. Partly cloudy. A slight chance of
showers and thunderstorms in the evening, then a chance of
showers and a slight chance of thunderstorms after midnight.
Waves 2 feet or less.
.WEDNESDAY...East winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon. A chance of showers in the
morning, then showers and a chance of thunderstorms in the
afternoon. Waves 2 feet or less.
.WEDNESDAY NIGHT...East winds 10 to 15 knots becoming southeast
15 to 20 knots in the late evening and early morning, then
veering to the southwest after midnight. Mostly cloudy with
showers likely and a chance of thunderstorms. Waves 1 to 3 feet.

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

$$

LHZ441-171630-
Port Austin to Harbor Beach MI-
422 AM EDT Tue Jun 17 2025

.TODAY...South winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon. Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Waves 2 feet or less.
.TONIGHT...Southwest winds 10 to 15 knots becoming northwest 5 to
10 knots in the late evening and early morning, then veering to
the northeast after midnight. Partly cloudy with a slight chance
of showers and thunderstorms. Waves 2 feet or less.
.WEDNESDAY...East winds 5 to 10 knots. Mostly cloudy. A chance of
showers in the morning, then a chance of showers and
thunderstorms in the afternoon. Waves 2 feet or less.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots veering to the
southwest after midnight. Rain showers and a chance of
thunderstorms in the evening, then a chance of showers and
thunderstorms after midnight. Waves 2 feet or less.

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

$$

LHZ442-171630-
Harbor Beach to Port Sanilac MI-
422 AM EDT Tue Jun 17 2025

.TODAY...South winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon. Partly cloudy. A slight chance of showers and
thunderstorms in the afternoon. Waves 2 feet or less.
.TONIGHT...Southwest winds 5 to 10 knots veering to the north
after midnight. Partly cloudy. A chance of showers and
thunderstorms in the evening, then a chance of showers and a
slight chance of thunderstorms after midnight. Waves 2 feet or
less.
.WEDNESDAY...North winds 5 to 10 knots veering to the southeast
in the late morning and afternoon. A chance of showers in the
morning, then showers and a chance of thunderstorms in the
afternoon. Waves 2 feet or less.
.WEDNESDAY NIGHT...South winds 10 to 15 knots veering to the
southwest after midnight. Rain showers and a chance of
thunderstorms. Waves 1 to 3 feet.

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

$$

LHZ443-171630-
Port Sanilac to Port Huron MI-
422 AM EDT Tue Jun 17 2025

.TODAY...South winds 5 to 10 knots becoming southwest 10 to
15 knots late in the afternoon. Partly cloudy. A slight chance of
showers and thunderstorms in the afternoon. Waves 2 feet or less.
.TONIGHT...Southwest winds 5 to 10 knots veering to the northwest
after midnight. Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Waves 2 feet or less.
.WEDNESDAY...North winds 5 to 10 knots backing to the south in
the late morning and afternoon. A chance of showers in the
morning, then showers and a chance of thunderstorms in the
afternoon. Waves 2 feet or less.
.WEDNESDAY NIGHT...South winds 10 to 15 knots becoming southwest
15 to 20 knots after midnight. Showers and a chance of
thunderstorms in the evening, then showers after midnight. Waves
1 to 3 feet.

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

$$

LEZ444-171630-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
422 AM EDT Tue Jun 17 2025

.TODAY...South winds 5 to 10 knots. Mostly cloudy with a slight
chance of showers in the morning, then partly cloudy with a
slight chance of showers and thunderstorms in the afternoon.
Waves 2 feet or less.
.TONIGHT...Southwest winds 5 to 10 knots. Partly cloudy with a
slight chance of showers and thunderstorms. Waves 2 feet or less.
.WEDNESDAY...Southwest winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon. Partly cloudy. A chance of
showers in the morning, then a chance of showers and
thunderstorms in the afternoon. Waves 2 feet or less.
.WEDNESDAY NIGHT...Southwest winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and overnight. Mostly cloudy
with showers likely and a chance of thunderstorms. Waves 1 to
3 feet.

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

The water temperature at Belle Isle is 66 degrees.

$$

AA

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a www.weather.gov/greatlakes