510
FZUS53 KDTX 130757
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
357 AM EDT Mon Oct 13 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.

LHZ422-131600-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
357 AM EDT Mon Oct 13 2025

.TODAY...Southeast winds 5 to 10 knots in the morning becoming
light and variable. Mostly sunny. Waves 2 feet or less.
.TONIGHT...East winds 5 to 10 knots veering to the west after
midnight. Mostly clear until early morning becoming mostly
cloudy. Waves 2 feet or less.
.TUESDAY...North winds 10 to 15 knots diminishing to 5 to
10 knots early in the afternoon. Mostly cloudy becoming partly
cloudy in the late morning and early afternoon becoming mostly
sunny. Waves 2 feet or less.
.TUESDAY NIGHT...North winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. Partly cloudy until
early morning becoming mostly cloudy. Waves 1 to 3 feet.

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

$$

LHZ421-131600-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
357 AM EDT Mon Oct 13 2025

.TODAY...Southeast winds 10 to 15 knots becoming south 5 to
10 knots in the late morning and afternoon. Mostly sunny. Waves
1 to 3 feet.
.TONIGHT...Southeast winds 5 to 10 knots veering to the southwest
after midnight. Mostly clear until early morning becoming mostly
cloudy. Waves 2 feet or less.
.TUESDAY...North winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. Mostly cloudy until
late afternoon becoming mostly sunny. Waves 1 to 3 feet building
to 2 to 4 feet early in the afternoon.
.TUESDAY NIGHT...North winds 15 to 20 knots. Partly cloudy until
early morning becoming mostly cloudy. Waves 4 to 6 feet. Waves
occasionally around 7 feet. A Small Craft Advisory may be needed.

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

$$

LHZ441-131600-
Port Austin to Harbor Beach MI-
357 AM EDT Mon Oct 13 2025

.TODAY...Southeast winds 10 to 15 knots diminishing to 5 to
10 knots in the late morning and afternoon. Sunny. Waves 2 to
4 feet subsiding to 1 to 3 feet in the late morning and
afternoon.
.TONIGHT...Southeast winds 5 to 10 knots early in the evening
becoming light and variable, then becoming southwest 5 to
10 knots after midnight. Mostly clear. Waves 2 feet or less.
.TUESDAY...Northwest winds 10 to 15 knots becoming north 15 to 20
knots in the late morning and afternoon. Mostly cloudy until late
afternoon becoming mostly sunny. Waves 1 to 3 feet building to 3 to 5
feet in the late morning and afternoon. Waves occasionally around 7
feet. A Small Craft Advisory may be needed.
.TUESDAY NIGHT...North winds 15 to 20 knots increasing to 20 to
25 knots in the late evening and early morning, then diminishing
to 15 to 20 knots after midnight. Mostly clear early in the
evening becoming mostly cloudy. Waves 5 to 7 feet. Waves
occasionally around 10 feet.

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

$$

LHZ442-131600-
Harbor Beach to Port Sanilac MI-
357 AM EDT Mon Oct 13 2025

.TODAY...Southeast winds 10 to 15 knots diminishing to 5 to
10 knots in the late morning and afternoon. Sunny. Waves 2 to
4 feet subsiding to 1 to 3 feet in the late morning and
afternoon.
.TONIGHT...East winds 5 to 10 knots early in the evening becoming
light and variable, then becoming southwest 5 to 10 knots after
midnight. Mostly clear. Waves 2 feet or less.
.TUESDAY...Northwest winds 10 to 15 knots becoming north 15 to 20
knots early in the afternoon. Mostly cloudy until late afternoon then
clearing. Waves 1 to 3 feet building to 3 to 5 feet early in the
afternoon. Waves occasionally around 7 feet. A Small Craft Advisory
may be needed.
.TUESDAY NIGHT...North winds 15 to 20 knots. Partly cloudy until
early morning becoming mostly cloudy. Waves 4 to 6 feet. Waves
occasionally around 7 feet.

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

$$

LHZ443-131600-
Port Sanilac to Port Huron MI-
357 AM EDT Mon Oct 13 2025

.TODAY...Southeast winds 10 to 15 knots becoming east 5 to
10 knots in the late morning and afternoon. Sunny. Waves 2 feet
or less.
.TONIGHT...East winds 5 to 10 knots veering to the south after
midnight. Mostly clear. Waves 2 feet or less.
.TUESDAY...West 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 until late
afternoon then clearing. Waves 2 feet or less building to 2 to
4 feet early in the afternoon.
.TUESDAY NIGHT...North winds 15 to 20 knots. Partly cloudy until
early morning becoming mostly cloudy. 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.

$$

LEZ444-131600-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
357 AM EDT Mon Oct 13 2025

.TODAY...East winds 5 to 10 knots. Mostly sunny. Waves 2 feet or
less.
.TONIGHT...East winds 5 to 10 knots until early morning becoming
light and variable. Mostly clear. Waves 2 feet or less.
.TUESDAY...Light and variable winds becoming north 5 to 10 knots
in the late morning and afternoon. Partly cloudy until late
afternoon then clearing. Waves 2 feet or less.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots becoming north
10 to 15 knots after midnight. Partly cloudy. Waves 2 feet or
less.

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

The water temperature at Belle Isle is 62 degrees.

$$

BT

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