851
FZUS53 KDTX 161403
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
Issued by National Weather Service Grand Rapids MI
1003 AM EDT Thu Oct 16 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.

LHZ422-162215-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
1003 AM EDT Thu Oct 16 2025

.REST OF TODAY...North winds 5 to 10 knots late in the morning
becoming light and variable, then becoming east 5 to 10 knots
late in the afternoon. Sunny. Waves 2 feet or less.
.TONIGHT...Southeast winds 5 to 10 knots becoming south 10 to
15 knots after midnight. Mostly clear. A chance of showers after
midnight. Waves 2 feet or less.
.FRIDAY...South winds 10 to 15 knots increasing to 15 to 20 knots
early in the afternoon. Mostly cloudy. A chance of showers in the
morning. Waves 2 feet or less.
.FRIDAY NIGHT...South winds 15 to 20 knots increasing to 20 to 25
knots with gusts to 30 knots in the late evening and overnight.
Mostly cloudy. A chance of showers after midnight. Waves 1 to 3 feet
building to 2 to 4 feet in the late evening and overnight. A Small
Craft Advisory may be needed.

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

$$

LHZ421-162215-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
1003 AM EDT Thu Oct 16 2025

.REST OF TODAY...North winds 5 to 10 knots veering to the
northeast late in the afternoon. Sunny. Waves 2 feet or less.
.TONIGHT...Southeast winds 5 to 10 knots becoming south 10 to
15 knots after midnight. Partly cloudy. A chance of showers after
midnight. Waves 2 feet or less.
.FRIDAY...South winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and afternoon. Mostly cloudy. A chance of
showers in the morning. Waves 1 to 3 feet.
.FRIDAY NIGHT...South winds 20 to 25 knots. Mostly cloudy. A chance
of showers after midnight. Waves 1 to 3 feet building to 2 to 4 feet
in the late evening and overnight. A Small Craft Advisory may be
needed.

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

$$

LHZ441-162215-
Port Austin to Harbor Beach MI-
1003 AM EDT Thu Oct 16 2025

.REST OF TODAY...North winds 5 to 10 knots. Sunny. Waves 1 to
3 feet.
.TONIGHT...Northeast winds 5 to 10 knots veering to the south
after midnight. Partly cloudy. A slight chance of showers after
midnight. Waves 2 feet or less.
.FRIDAY...South winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and afternoon. Light showers in the morning,
then a chance of showers in the afternoon. Waves 2 feet or less.
.FRIDAY NIGHT...South winds 15 to 20 knots. Mostly cloudy with a
chance of showers. Waves 1 to 3 feet building to 2 to 4 feet in
the late evening and overnight.

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

$$

LHZ442-162215-
Harbor Beach to Port Sanilac MI-
1003 AM EDT Thu Oct 16 2025

.REST OF TODAY...North winds 5 to 10 knots. Sunny. Waves 1 to
3 feet.
.TONIGHT...Northeast winds 5 to 10 knots veering to the south
after midnight. Mostly clear. A slight chance of showers after
midnight. Waves 2 feet or less.
.FRIDAY...South winds 5 to 10 knots increasing to 15 to 20 knots.
Mostly cloudy with showers likely. Waves 2 feet or less.
.FRIDAY NIGHT...South winds 15 to 20 knots. Mostly cloudy with a
chance of showers. Waves 1 to 3 feet building to 2 to 4 feet in
the late evening and overnight.

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

$$

LHZ443-162215-
Port Sanilac to Port Huron MI-
1003 AM EDT Thu Oct 16 2025

.REST OF TODAY...North winds 5 to 10 knots. Sunny. Waves 1 to
3 feet.
.TONIGHT...Northeast winds 5 to 10 knots veering to the south
after midnight. Mostly clear. Waves 2 feet or less.
.FRIDAY...South winds 5 to 10 knots increasing to 15 to 20 knots.
Mostly cloudy. Light showers likely in the morning, then a chance
of showers in the afternoon. Waves 2 feet or less.
.FRIDAY NIGHT...South winds 15 to 20 knots. Mostly cloudy with a
chance of showers. Waves 1 to 3 feet building to 2 to 4 feet
after midnight.

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

$$

LEZ444-162215-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
1003 AM EDT Thu Oct 16 2025

.REST OF TODAY...Northeast winds 5 to 10 knots veering to the
east late in the afternoon. Sunny. Waves 2 feet or less.
.TONIGHT...Light and variable winds becoming south 5 to 10 knots
after midnight. Clear. Waves 2 feet or less.
.FRIDAY...South winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon. Partly cloudy. A slight chance of showers
in the morning. Waves 2 feet or less.
.FRIDAY NIGHT...South winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. Mostly cloudy. Waves
1 to 3 feet.

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

The water temperature at Belle Isle is 62 degrees.

$$

Thomas

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