700
FZUS53 KDTX 121404
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
1004 AM EDT Sat Sep 12 2026

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.

LHZ422-122215-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
1004 AM EDT Sat Sep 12 2026

.REST OF TODAY...Southwest winds 10 to 15 knots. Partly cloudy.
Waves 2 feet or less.
.TONIGHT...Southwest winds 10 to 15 knots veering to the
northwest in the late evening and early morning, then becoming
north 5 to 10 knots after midnight. Partly cloudy. Waves 2 feet
or less.
.SUNDAY...North winds 5 to 10 knots backing to the northwest in the
late morning and early afternoon, then becoming west 20 to 25 knots
early in the afternoon. Partly cloudy until late afternoon becoming
mostly cloudy. A slight chance of. Waves 2 feet or less. A Small
Craft Advisory may be needed.
.SUNDAY NIGHT...Northwest winds to 30 knots diminishing to 15 to
20 knots in the late evening and overnight. Partly cloudy early
in the evening then clearing. Waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight.

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

$$

LHZ421-122215-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
1004 AM EDT Sat Sep 12 2026

.REST OF TODAY...South winds 10 to 15 knots. Partly cloudy. Waves
1 to 3 feet.
.TONIGHT...Southwest winds 10 to 15 knots veering to the north in
the late evening and overnight. Partly cloudy. Waves 1 to 3 feet.
.SUNDAY...North winds 10 to 15 knots becoming west 5 to 10 knots
in the late morning and early afternoon, then 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. Waves 2 feet or less building to 2 to
4 feet early in the afternoon.
.SUNDAY NIGHT...Northwest winds 20 to 25 knots with gusts to 30 knots
diminishing to 15 to 20 knots in the late evening and overnight.
Partly cloudy until early morning then clearing. Waves 2 to 4 feet. A
Small Craft Advisory may be needed.

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

$$

LHZ441-122215-
Port Austin to Harbor Beach MI-
1004 AM EDT Sat Sep 12 2026

.REST OF TODAY...South winds 10 to 15 knots. Partly cloudy with a
slight chance of showers. Waves 1 to 3 feet.
.TONIGHT...Southwest winds 10 to 15 knots veering to the north in
the late evening and overnight. Partly cloudy. A slight chance of
showers in the late evening and early morning. Waves 1 to 3 feet.
.SUNDAY...North winds 10 to 15 knots becoming northwest 5 to
10 knots in the late morning and early afternoon, then becoming
west 15 to 20 knots early in the afternoon. Partly cloudy until
late afternoon becoming mostly cloudy. A chance of showers early
in the afternoon. Waves 1 to 3 feet.
.SUNDAY NIGHT...Northwest winds 20 to 25 knots with gusts to 30 knots
diminishing to 15 to 20 knots in the late evening and overnight.
Mostly cloudy early in the evening then clearing. Waves 4 to 6 feet.
Waves occasionally around 8 feet. A Small Craft Advisory may be
needed.

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

$$

LHZ442-122215-
Harbor Beach to Port Sanilac MI-
1004 AM EDT Sat Sep 12 2026

.REST OF TODAY...South winds 10 to 15 knots. Partly cloudy late
in the morning becoming mostly cloudy. A slight chance of showers.
Waves 1 to 3 feet.
.TONIGHT...Southwest winds 5 to 10 knots becoming northwest 10 to
15 knots in the late evening and early morning, then veering to
the north after midnight. Partly cloudy. A slight chance of
showers early in the evening. Waves 2 feet or less.
.SUNDAY...North winds 10 to 15 knots becoming northwest 5 to
10 knots in the late morning and early afternoon, then increasing
to 10 to 15 knots early in the afternoon. Partly cloudy until
late afternoon becoming mostly cloudy. A chance of showers early
in the afternoon. Waves 1 to 3 feet.
.SUNDAY NIGHT...Northwest winds 15 to 20 knots. Mostly cloudy
early in the evening then clearing. Waves 2 to 4 feet.

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

$$

LHZ443-122215-
Port Sanilac to Port Huron MI-
1004 AM EDT Sat Sep 12 2026

.REST OF TODAY...South winds 10 to 15 knots. Partly cloudy late
in the morning becoming mostly cloudy. Waves 2 feet or less.
.TONIGHT...Southwest winds 5 to 10 knots becoming north 10 to
15 knots after midnight. Partly cloudy. Waves 2 feet or less.
.SUNDAY...North winds 10 to 15 knots diminishing to 5 to 10 knots
in the late morning and early afternoon, then becoming northwest
10 to 15 knots early in the afternoon. Partly cloudy. A chance of
showers early in the afternoon. Waves 2 feet or less.
.SUNDAY NIGHT...Northwest winds 15 to 20 knots. Mostly cloudy
early in the evening then clearing. Waves 2 to 4 feet.

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

$$

LEZ444-122215-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
1004 AM EDT Sat Sep 12 2026

.REST OF TODAY...South winds 5 to 10 knots. Mostly cloudy. A
chance of showers late in the morning, then a chance of showers
and a slight chance of thunderstorms in the afternoon. Waves
2 feet or less.
.TONIGHT...Southwest winds 5 to 10 knots veering to the west
after midnight. Mostly clear. Waves 2 feet or less.
.SUNDAY...Northwest winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon. Partly cloudy until late
afternoon becoming mostly sunny. Waves 2 feet or less.
.SUNDAY NIGHT...Northwest winds 15 to 20 knots becoming north
10 to 15 knots after midnight. Mostly cloudy early in the evening
becoming mostly clear. Waves 2 feet or less.

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

The water temperature at Belle Isle is 70 degrees.

$$

MANN

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