374
FZUS53 KDTX 021943
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
343 PM EDT Tue Sep 2 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.

LHZ422-030345-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
343 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY EVENING...

.TONIGHT...Southeast winds 5 to 10 knots becoming south 10 to
15 knots in the late evening and overnight. Clear. Waves 2 feet
or less.
.WEDNESDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots with gusts to 25 knots in the late morning and
afternoon. Mostly sunny early in the morning, then partly cloudy
with a chance of showers in the late morning and early afternoon.
Mostly cloudy with showers likely and a chance of thunderstorms
early in the afternoon. A slight chance of waterspouts early in
the afternoon. Waves 1 to 3 feet building to 2 to 4 feet early in
the afternoon.
.WEDNESDAY NIGHT...West winds 15 to 20 knots veering to the
northwest after midnight. A chance of thunderstorms early in the
evening. Rain showers until early morning, then a chance of
showers after midnight. Waves 2 to 4 feet.
.THURSDAY...West winds 10 to 15 knots increasing to 15 to
20 knots early in the afternoon. Partly cloudy early in the
morning then clearing. A chance of showers early in the morning.
Waves 1 to 3 feet building to 2 to 4 feet early in the afternoon.

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

$$

LHZ421-030345-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
343 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY EVENING...

.TONIGHT...Southeast winds 5 to 10 knots becoming south 10 to
15 knots in the late evening and overnight. Mostly clear. Waves
2 feet or less.
.WEDNESDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots with gusts to 25 knots in the late morning and
afternoon. Mostly sunny early in the morning, then partly cloudy
with a chance of showers in the late morning and early afternoon.
Mostly cloudy with showers likely and a chance of thunderstorms
early in the afternoon. A chance of waterspouts early in the
afternoon. Waves 1 to 3 feet building to 2 to 4 feet early in the
afternoon.
.WEDNESDAY NIGHT...West winds 15 to 20 knots veering to the
northwest after midnight. A chance of waterspouts until early
morning. A chance of thunderstorms early in the evening. Rain
showers until early morning, then a chance of showers after
midnight. Waves 2 to 4 feet.
.THURSDAY...Northwest winds 15 to 20 knots becoming west 10 to
15 knots in the late morning and early afternoon, then becoming
southwest 15 to 20 knots early in the afternoon. Partly cloudy
early in the morning then clearing. A chance of showers early in
the morning. Waves 2 to 4 feet.

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

$$

LHZ441-030345-
Port Austin to Harbor Beach MI-
343 PM EDT Tue Sep 2 2025

.TONIGHT...Southeast winds 5 to 10 knots becoming south 10 to
15 knots in the late evening and overnight. Mostly clear. Waves
2 feet or less.
.WEDNESDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots early in the afternoon. Mostly sunny becoming partly
cloudy in the late morning and early afternoon becoming mostly
cloudy. A slight chance of showers in the late morning and early
afternoon. Showers likely and a slight chance of thunderstorms
early in the afternoon. A slight chance of waterspouts early in
the afternoon. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...West winds 15 to 20 knots veering to the
northwest after midnight. Rain showers. Waves 2 to 4 feet.
.THURSDAY...Northwest winds 15 to 20 knots becoming west 10 to
15 knots in the late morning and afternoon. Rain showers early in
the morning, then mostly sunny in the late morning and afternoon.
Waves 2 to 4 feet.

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

$$

LHZ442-030345-
Harbor Beach to Port Sanilac MI-
343 PM EDT Tue Sep 2 2025

.TONIGHT...Southeast winds 5 to 10 knots becoming south 10 to
15 knots after midnight. Mostly clear. Waves 2 feet or less.
.WEDNESDAY...South winds 10 to 15 knots becoming southwest 15 to
20 knots early in the afternoon. Mostly sunny early in the
morning, then partly cloudy with a slight chance of showers in
the late morning and early afternoon. Mostly cloudy with showers
likely and a slight chance of thunderstorms early in the
afternoon. A slight chance of waterspouts early in the afternoon.
Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Southwest winds 10 to 15 knots becoming
northwest 15 to 20 knots after midnight. A chance of waterspouts
early in the evening. Rain showers. Waves 1 to 3 feet.
.THURSDAY...West winds 10 to 15 knots. Rain showers early in the
morning, then mostly sunny in the late morning and afternoon.
Waves 1 to 3 feet.

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

$$

LHZ443-030345-
Port Sanilac to Port Huron MI-
343 PM EDT Tue Sep 2 2025

.TONIGHT...Southeast winds 5 to 10 knots becoming south 10 to
15 knots after midnight. Mostly clear. Waves 2 feet or less.
.WEDNESDAY...South winds 10 to 15 knots. Mostly sunny until late
afternoon, then partly cloudy with a slight chance of showers and
thunderstorms early in the afternoon. A slight chance of
waterspouts early in the afternoon. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Southwest winds 10 to 15 knots becoming west
15 to 20 knots after midnight. Rain showers. Waves 1 to 3 feet.
.THURSDAY...Northwest winds 15 to 20 knots becoming west 10 to
15 knots in the late morning and afternoon. Rain showers early in
the morning, then mostly sunny in the late morning and afternoon.
Waves 1 to 3 feet.

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

$$

LEZ444-030345-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
343 PM EDT Tue Sep 2 2025

.TONIGHT...Southeast winds 5 to 10 knots veering to the south
early in the morning. Clear. Waves 2 feet or less.
.WEDNESDAY...Southwest winds 5 to 10 knots becoming south 10 to
15 knots in the late morning and afternoon. Sunny until late
afternoon becoming partly cloudy. A chance of showers early in
the afternoon. Waves 2 feet or less.
.WEDNESDAY NIGHT...Southwest winds 10 to 15 knots becoming west
15 to 20 knots in the late evening and overnight. Partly cloudy
early in the evening. A chance of waterspouts until early
morning. Rain showers likely until early morning, then showers
after midnight. Waves 1 to 3 feet.
.THURSDAY...West winds 10 to 15 knots. Rain showers early in the
morning, then partly cloudy with a chance of showers in the late
morning and early afternoon. Mostly sunny early in the afternoon.
Waves 1 to 3 feet.

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

The water temperature at Belle Isle is 69 degrees.

$$

DRK

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