Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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660
FZUS53 KDTX 070136
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
936 PM EDT Tue May 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.

LHZ422-070945-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
936 PM EDT Tue May 6 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH THURSDAY EVENING...

.REST OF TONIGHT...Light and variable winds becoming west 5 to
10 knots after midnight. Mostly cloudy. A slight chance of
showers this evening. Waves 2 feet or less.
.WEDNESDAY...Northwest winds 5 to 10 knots becoming northeast
10 to 15 knots in the late morning and early afternoon, then
increasing to 15 to 20 knots early in the afternoon. Mostly sunny
in the morning becoming partly cloudy. Waves 2 feet or less
building to 2 to 4 feet early in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots diminishing to
10 to 15 knots in the late evening and early morning, then
increasing to 15 to 20 knots after midnight. Mostly clear. Waves
2 to 4 feet subsiding to 1 to 3 feet in the late evening and
early morning, then building to 2 to 4 feet after midnight.
.THURSDAY...Northeast winds 15 to 20 knots. Sunny. Waves 2 to
4 feet.

Small Craft Advisory conditions are expected to continue beyond
the forecast period. Please refer to the Open Lakes Forecast for
more information.

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

$$

LHZ421-070945-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
936 PM EDT Tue May 6 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH THURSDAY EVENING...

.REST OF TONIGHT...Light and variable winds becoming west 5 to
10 knots early in the morning. Mostly cloudy. A slight chance of
showers this evening. Waves 2 feet or less.
.WEDNESDAY...Northwest winds 5 to 10 knots becoming north 10 to
15 knots in the late morning and early afternoon, then increasing
to 15 to 20 knots early in the afternoon. Partly cloudy. Waves
1 to 3 feet building to 2 to 4 feet early in the afternoon.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots. Mostly clear.
Waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening
and early morning, then building to 2 to 4 feet after midnight.
.THURSDAY...Northeast winds 15 to 20 knots. Sunny. Waves 3 to
5 feet. Waves occasionally around 7 feet.

Small Craft Advisory conditions are expected to continue beyond
the forecast period. Please refer to the Open Lakes Forecast for
more information.

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

$$

LHZ441-070945-
Port Austin to Harbor Beach MI-
936 PM EDT Tue May 6 2025

.REST OF TONIGHT...Light and variable winds becoming west 5 to
10 knots early in the morning. Mostly cloudy. Patchy fog after
midnight. Waves 2 feet or less.
.WEDNESDAY...Northwest winds 5 to 10 knots becoming north 10 to
15 knots in the late morning and afternoon. Partly cloudy in the
morning becoming mostly cloudy. Waves 1 to 3 feet building to
2 to 4 feet early in the afternoon.
.WEDNESDAY NIGHT...North winds 10 to 15 knots becoming northeast
15 to 20 knots after midnight. Mostly clear. Waves 1 to 3 feet
building to 2 to 4 feet after midnight.
.THURSDAY...North winds 15 to 20 knots. Sunny. Waves 3 to 5 feet.
Waves occasionally around 7 feet. A Small Craft Advisory may be
needed.

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

$$

LHZ442-070945-
Harbor Beach to Port Sanilac MI-
936 PM EDT Tue May 6 2025

.REST OF TONIGHT...Light and variable winds. Partly cloudy this
evening becoming mostly cloudy. Patchy fog. Waves 2 feet or less.
.WEDNESDAY...Northwest winds 5 to 10 knots becoming north 15 to
20 knots. Partly cloudy. Waves 2 feet or less building to 2 to
4 feet early in the afternoon.
.WEDNESDAY NIGHT...North winds 15 to 20 knots diminishing to
10 to 15 knots in the late evening and early morning, then
increasing to 15 to 20 knots after midnight. Mostly clear. Waves
2 to 4 feet.
.THURSDAY...North winds 15 to 20 knots. Sunny. Waves 3 to 5 feet.
Waves occasionally around 7 feet. A Small Craft Advisory may be
needed.

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

$$

LHZ443-070945-
Port Sanilac to Port Huron MI-
936 PM EDT Tue May 6 2025

.REST OF TONIGHT...Light and variable winds. Partly cloudy this
evening becoming mostly cloudy. Patchy fog this evening. Waves
2 feet or less.
.WEDNESDAY...Northwest winds 5 to 10 knots becoming north 10 to
15 knots in the late morning and early afternoon, then increasing
to 15 to 20 knots early in the afternoon. Partly cloudy. Waves
2 feet or less building to 2 to 4 feet early in the afternoon.
.WEDNESDAY NIGHT...North winds 15 to 20 knots. Mostly clear.
Waves 2 to 4 feet.
.THURSDAY...North winds 15 to 20 knots. Sunny. Waves 3 to 5 feet.
Waves occasionally around 6 feet. A Small Craft Advisory may be
needed.

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

$$

LEZ444-070945-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
936 PM EDT Tue May 6 2025

.REST OF TONIGHT...Northwest winds 5 to 10 knots. Partly cloudy.
A slight chance of showers this evening. Waves 2 feet or less.
.WEDNESDAY...Light and variable winds becoming north 5 to
10 knots early in the afternoon. Partly cloudy in the morning
becoming mostly sunny. Patchy fog in the morning. Waves 2 feet or
less.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Partly cloudy
in the evening becoming mostly cloudy. A slight chance of. Waves
1 to 3 feet.
.THURSDAY...Northeast winds 10 to 15 knots. Partly cloudy in the
morning then clearing. Waves 1 to 3 feet.

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

The water temperature at Belle Isle is 52 degrees.

$$

SC

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