603
FZUS53 KDTX 120750
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
350 AM EDT Mon May 12 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.

LHZ422-120900-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
350 AM EDT Mon May 12 2025

.TODAY...Southeast winds 5 to 10 knots backing to the east early
in the afternoon, then becoming northeast 10 to 15 knots late in
the afternoon. Sunny. Waves 2 feet or less.
.TONIGHT...East winds 10 to 15 knots becoming southeast 5 to
10 knots after midnight. Partly cloudy. Waves 2 feet or less.
.TUESDAY...Southeast winds 5 to 10 knots becoming east 10 to
15 knots early in the afternoon. Mostly cloudy in the morning,
then partly cloudy with a chance of showers in the afternoon.
Waves 2 feet or less.
.TUESDAY NIGHT...East winds 10 to 15 knots. Mostly cloudy. Waves
2 feet or less.

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

$$

LHZ421-120900-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
350 AM EDT Mon May 12 2025

.TODAY...South winds 5 to 10 knots backing to the east in the
afternoon. Sunny. Waves 2 feet or less.
.TONIGHT...Southeast winds 5 to 10 knots. Partly cloudy. Waves
2 feet or less.
.TUESDAY...Southeast winds 5 to 10 knots becoming east 10 to
15 knots early in the afternoon. Mostly cloudy in the morning
becoming partly cloudy. Waves 2 feet or less.
.TUESDAY NIGHT...East winds 10 to 15 knots. Mostly cloudy. Waves
1 to 3 feet.

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

$$

LHZ441-120900-
Port Austin to Harbor Beach MI-
350 AM EDT Mon May 12 2025

.TODAY...Southeast winds 5 to 10 knots. Sunny. Waves 2 feet or
less.
.TONIGHT...Southeast winds 10 to 15 knots diminishing to 5 to
10 knots in the late evening and overnight. Partly cloudy. Waves
2 feet or less.
.TUESDAY...Southeast winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon. Mostly cloudy. Waves 2 feet or
less.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Mostly cloudy.
Waves 1 to 3 feet.

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

$$

LHZ442-120900-
Harbor Beach to Port Sanilac MI-
350 AM EDT Mon May 12 2025

.TODAY...Southeast winds 5 to 10 knots. Sunny. Waves 2 feet or
less.
.TONIGHT...Southeast winds 5 to 10 knots. Mostly clear in the
evening, then mostly cloudy with a slight chance of showers after
midnight. Waves 2 feet or less.
.TUESDAY...Southeast winds 5 to 10 knots becoming east 10 to
15 knots early in the afternoon. Mostly cloudy. Waves 2 feet or
less.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Mostly cloudy.
Waves 1 to 3 feet.

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

$$

LHZ443-120900-
Port Sanilac to Port Huron MI-
350 AM EDT Mon May 12 2025

.TODAY...Light and variable winds becoming east 5 to 10 knots in
the afternoon. Sunny. Waves 2 feet or less.
.TONIGHT...Southeast winds 5 to 10 knots. Partly cloudy in the
evening, then mostly cloudy with a chance of showers after
midnight. Waves 2 feet or less.
.TUESDAY...Southeast winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. Mostly cloudy. A
chance of showers. Waves 2 feet or less.
.TUESDAY NIGHT...Southeast winds 10 to 15 knots. Mostly cloudy.
Waves 1 to 3 feet.

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

$$

LEZ444-120900-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
350 AM EDT Mon May 12 2025

.TODAY...East winds 5 to 10 knots increasing to 10 to 15 knots
late in the afternoon. Mostly sunny in the morning becoming
partly cloudy. Waves 2 feet or less.
.TONIGHT...East winds 10 to 15 knots becoming southeast 5 to
10 knots in the late evening and overnight. Mostly cloudy with a
chance of showers and a slight chance of thunderstorms. Waves
2 feet or less.
.TUESDAY...East winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon. Mostly cloudy. A chance of showers and
thunderstorms in the afternoon. Waves 2 feet or less.
.TUESDAY NIGHT...East winds 10 to 15 knots diminishing to 5 to
10 knots in the late evening and overnight. Mostly cloudy. A
chance of showers and thunderstorms 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 56 degrees.

$$

AA

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