105
FZUS53 KDTX 200136
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
936 PM EDT Tue Aug 19 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.

LHZ422-200945-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
936 PM EDT Tue Aug 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.REST OF TONIGHT...Northeast winds 10 to 15 knots. Mostly cloudy.
Waves 1 to 3 feet.
.WEDNESDAY...Northeast winds 15 to 20 knots. Gusts to 25 knots. Mostly
cloudy becoming partly cloudy in the late morning and early
afternoon becoming sunny. Waves 2 to 4 feet.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots diminishing to
10 to 15 knots after midnight. Clear. Waves 2 to 4 feet subsiding
to 1 to 3 feet in the late evening and overnight.
.THURSDAY...Northeast winds 10 to 15 knots. Sunny. Waves 1 to
3 feet.

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

$$

LHZ421-200945-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
936 PM EDT Tue Aug 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.REST OF TONIGHT...Northeast winds 10 to 15 knots. Mostly cloudy.
Waves 1 to 3 feet.
.WEDNESDAY...Northeast winds 15 to 20 knots. Mostly cloudy
becoming partly cloudy in the late morning and early afternoon
becoming sunny. Waves 3 to 5 feet. Waves occasionally around
7 feet.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots diminishing to
10 to 15 knots after midnight. Clear. Waves 2 to 4 feet subsiding
to 1 to 3 feet after midnight.
.THURSDAY...Northeast winds 10 to 15 knots. Sunny. Waves 1 to
3 feet.

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

$$

LHZ441-200945-
Port Austin to Harbor Beach MI-
936 PM EDT Tue Aug 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.REST OF TONIGHT...Northeast winds 10 to 15 knots. Cloudy. Waves
1 to 3 feet.
.WEDNESDAY...Northeast winds 15 to 20 knots. Mostly cloudy
becoming partly cloudy in the late morning and early afternoon
becoming mostly sunny. Waves 3 to 5 feet. Waves occasionally
around 7 feet.
.WEDNESDAY NIGHT...North winds 15 to 20 knots becoming northeast
10 to 15 knots in the late evening and overnight. Mostly clear.
Waves 3 to 5 feet subsiding to 1 to 3 feet after midnight. Waves
occasionally around 7 feet.
.THURSDAY...Northeast winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. Sunny. Waves 1 to
3 feet.

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

$$

LHZ442-200945-
Harbor Beach to Port Sanilac MI-
936 PM EDT Tue Aug 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.REST OF TONIGHT...Northeast winds 5 to 10 knots increasing to
10 to 15 knots early in the morning. Cloudy. Waves 2 feet or
less.
.WEDNESDAY...Northeast winds 15 to 20 knots. Mostly cloudy
becoming partly cloudy in the late morning and early afternoon
becoming mostly sunny. Waves 3 to 5 feet. Waves occasionally
around 7 feet.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots diminishing to
10 to 15 knots after midnight. Partly cloudy. Waves 3 to 5 feet
subsiding to 2 to 4 feet after midnight. Waves occasionally
around 7 feet.
.THURSDAY...Northeast winds 10 to 15 knots. Mostly sunny. Waves
1 to 3 feet.

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

$$

LHZ443-200945-
Port Sanilac to Port Huron MI-
936 PM EDT Tue Aug 19 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.REST OF TONIGHT...Northeast winds 5 to 10 knots increasing to
10 to 15 knots early in the morning. Mostly cloudy. Waves 2 feet
or less.
.WEDNESDAY...North winds 15 to 20 knots. Mostly cloudy becoming
partly cloudy in the late morning and early afternoon becoming
mostly sunny. Waves 3 to 5 feet. Waves occasionally around
7 feet.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots diminishing to
10 to 15 knots after midnight. Partly cloudy. Waves 3 to 5 feet.
Waves occasionally around 7 feet.
.THURSDAY...Northeast winds 10 to 15 knots. Mostly sunny. Waves
1 to 3 feet.

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

$$

LEZ444-200945-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
936 PM EDT Tue Aug 19 2025

.REST OF TONIGHT...Northeast winds 5 to 10 knots becoming north
10 to 15 knots early in the morning. Mostly cloudy. Waves 2 feet
or less.
.WEDNESDAY...North winds 10 to 15 knots. Mostly cloudy until late
afternoon becoming partly cloudy. Waves 2 feet or less.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and early morning, then
diminishing to 10 to 15 knots after midnight. Partly cloudy.
Waves 1 to 3 feet.
.THURSDAY...Northeast winds 10 to 15 knots. Mostly sunny. Waves
1 to 3 feet.

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

The water temperature at Belle Isle is 76 degrees.

$$

SC

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