Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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137
FZUS53 KDTX 291341
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
941 AM EDT Sun Jun 29 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.

LHZ422-292145-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
941 AM EDT Sun Jun 29 2025

.REST OF TODAY...Southwest winds 5 to 10 knots. Mostly sunny. A
slight chance of showers in the afternoon. Waves 2 feet or less.
.TONIGHT...Southwest winds 5 to 10 knots becoming south 10 to
15 knots in the late evening and early morning, then diminishing
to 5 to 10 knots after midnight. Mostly clear. A slight chance of
showers and thunderstorms in the evening, then a slight chance of
showers after midnight. Waves 2 feet or less.
.MONDAY...Southwest winds 10 to 15 knots. Mostly sunny with a
slight chance of showers and thunderstorms in the morning, then
showers and a chance of thunderstorms in the afternoon. Waves
2 feet or less.
.MONDAY NIGHT...West winds 10 to 15 knots. Partly cloudy. Showers
and a chance of thunderstorms in the evening. Waves 2 feet or
less.

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

$$

LHZ421-292145-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
941 AM EDT Sun Jun 29 2025

.REST OF TODAY...Southwest winds 5 to 10 knots becoming south
10 to 15 knots late in the afternoon. Mostly sunny. Waves 2 feet
or less.
.TONIGHT...South winds 10 to 15 knots diminishing to 5 to
10 knots after midnight. Mostly clear. A slight chance of showers
and thunderstorms in the evening, then a slight chance of showers
after midnight. Waves 2 feet or less.
.MONDAY...Southwest winds 10 to 15 knots. Mostly sunny with a
chance of showers and a slight chance of thunderstorms in the
morning, then showers and a chance of thunderstorms in the
afternoon. Waves 2 feet or less.
.MONDAY NIGHT...Southwest winds 10 to 15 knots. Mostly cloudy
with showers and a chance of thunderstorms in the evening, then
partly cloudy after midnight. Waves 2 feet or less.

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

$$

LHZ441-292145-
Port Austin to Harbor Beach MI-
941 AM EDT Sun Jun 29 2025

.REST OF TODAY...South winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon, then diminishing to 5 to
10 knots late in the afternoon. Mostly sunny. Waves 2 feet or
less.
.TONIGHT...South winds 5 to 10 knots. Mostly clear with a slight
chance of showers. Waves 2 feet or less.
.MONDAY...South winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon. Mostly sunny with a chance of showers and
a slight chance of thunderstorms in the morning, then showers and
a chance of thunderstorms in the afternoon. Waves 2 feet or less.
.MONDAY NIGHT...Southwest winds 5 to 10 knots veering to the west
after midnight. Mostly cloudy with showers and a chance of
thunderstorms in the evening, then partly cloudy after midnight.
Waves 2 feet or less.

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

$$

LHZ442-292145-
Harbor Beach to Port Sanilac MI-
941 AM EDT Sun Jun 29 2025

.REST OF TODAY...South winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon, then diminishing to 5 to
10 knots late in the afternoon. Mostly sunny. Waves 2 feet or
less.
.TONIGHT...South winds 5 to 10 knots. Mostly clear. A slight
chance of showers after midnight. Waves 2 feet or less.
.MONDAY...South winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and afternoon. Mostly sunny with a chance of
showers and a slight chance of thunderstorms in the morning, then
showers and a chance of thunderstorms in the afternoon. Waves
2 feet or less.
.MONDAY NIGHT...Southwest winds 5 to 10 knots. Mostly cloudy with
showers and a chance of thunderstorms in the evening, then partly
cloudy after midnight. Waves 2 feet or less.

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

$$

LHZ443-292145-
Port Sanilac to Port Huron MI-
941 AM EDT Sun Jun 29 2025

.REST OF TODAY...South winds 5 to 10 knots. Mostly sunny. Waves
2 feet or less.
.TONIGHT...South winds 5 to 10 knots. Mostly clear. A slight
chance of showers after midnight. Waves 2 feet or less.
.MONDAY...South winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and afternoon. Mostly sunny with a chance of
showers and a slight chance of thunderstorms in the morning, then
showers in the afternoon. Waves 2 feet or less.
.MONDAY NIGHT...West winds 5 to 10 knots. Mostly cloudy. Showers
and a chance of thunderstorms in the evening. Waves 2 feet or
less.

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

$$

LEZ444-292145-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
941 AM EDT Sun Jun 29 2025

.REST OF TODAY...Light and variable winds becoming southeast 5 to
10 knots in the afternoon. Sunny. Waves 2 feet or less.
.TONIGHT...Southeast winds 5 to 10 knots veering to the south
after midnight. Mostly clear. A slight chance of showers and
thunderstorms after midnight. Waves 2 feet or less.
.MONDAY...Southwest winds 5 to 10 knots. Partly cloudy with a
chance of showers and a slight chance of thunderstorms in the
morning, then showers with thunderstorms likely in the afternoon.
Waves 2 feet or less.
.MONDAY NIGHT...Southwest winds 5 to 10 knots becoming west 10 to
15 knots in the late evening and overnight. Partly cloudy. Light
showers with thunderstorms likely in the evening. Waves 2 feet or
less.

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

The water temperature at Belle Isle is 73 degrees.

$$

SS

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a www.weather.gov/greatlakes