926
FZUS53 KDTX 201447
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
947 AM EST Thu Nov 20 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.

LHZ422-202300-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
947 AM EST Thu Nov 20 2025

.REST OF TODAY...South winds 10 to 15 knots. Mostly cloudy.
Patchy drizzle late in the morning. Waves 2 feet or less.
.TONIGHT...Southwest winds 10 to 15 knots. Cloudy. A slight
chance of light rain until early morning. Waves 1 to 3 feet.
.FRIDAY...West winds 10 to 15 knots. Partly cloudy early in the
morning then clearing. Waves 2 feet or less.
.FRIDAY NIGHT...Northwest winds 10 to 15 knots. Mostly clear.
Waves 1 to 3 feet.

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

$$

LHZ421-202300-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
947 AM EST Thu Nov 20 2025

.REST OF TODAY...South winds 10 to 15 knots. Mostly cloudy.
Patchy drizzle late in the morning. Waves 2 feet or less.
.TONIGHT...Southwest winds 15 to 20 knots. Cloudy. A slight
chance of light rain until early morning. Waves 1 to 3 feet
building to 2 to 4 feet in the late evening and overnight.
.FRIDAY...West winds 15 to 20 knots diminishing to 10 to 15 knots
early in the afternoon. Partly cloudy early in the morning then
clearing. Waves 1 to 3 feet.
.FRIDAY NIGHT...Northwest winds 15 to 20 knots becoming north
10 to 15 knots after midnight. Mostly clear. Waves 2 to 4 feet.

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

$$

LHZ441-202300-
Port Austin to Harbor Beach MI-
947 AM EST Thu Nov 20 2025

.REST OF TODAY...South winds 10 to 15 knots. Mostly cloudy.
Patchy drizzle late in the morning. Waves 2 feet or less.
.TONIGHT...South winds 10 to 15 knots becoming southwest 15 to
20 knots in the late evening and overnight. Cloudy with a slight
chance of light rain. Waves 1 to 3 feet.
.FRIDAY...West winds 10 to 15 knots. Partly cloudy with a slight
chance of light rain early in the morning, then mostly sunny in
the late morning and afternoon. Waves 1 to 3 feet.
.FRIDAY NIGHT...Northwest winds 15 to 20 knots becoming north 10 to
15 knots after midnight. Partly cloudy. Waves 3 to 5 feet. Waves
occasionally around 7 feet. A Small Craft Advisory may be needed.

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

$$

LHZ442-202300-
Harbor Beach to Port Sanilac MI-
947 AM EST Thu Nov 20 2025

.REST OF TODAY...South winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. Mostly cloudy. Patchy drizzle
late in the morning. Waves 2 feet or less.
.TONIGHT...Southwest winds 10 to 15 knots. Cloudy with a slight
chance of light rain. Waves 1 to 3 feet.
.FRIDAY...West winds 10 to 15 knots. Partly cloudy with a slight
chance of light rain early in the morning, then mostly sunny in
the late morning and afternoon. Waves 2 feet or less.
.FRIDAY NIGHT...Northwest winds 10 to 15 knots. Partly cloudy.
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.

$$

LHZ443-202300-
Port Sanilac to Port Huron MI-
947 AM EST Thu Nov 20 2025

.REST OF TODAY...South winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. Mostly cloudy. Patchy drizzle
late in the morning. Waves 2 feet or less.
.TONIGHT...Southwest winds 10 to 15 knots. Cloudy with a slight
chance of light rain. Waves 2 feet or less.
.FRIDAY...West winds 10 to 15 knots. Mostly cloudy early in the
morning becoming partly cloudy. A slight chance of light rain
early in the morning. Waves 2 feet or less.
.FRIDAY NIGHT...Northwest winds 10 to 15 knots. Partly cloudy.
Waves 1 to 3 feet.

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

$$

LEZ444-202300-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
947 AM EST Thu Nov 20 2025

.REST OF TODAY...Southeast winds 5 to 10 knots. Mostly cloudy.
Patchy drizzle late in the morning. Waves 2 feet or less.
.TONIGHT...Southwest winds 5 to 10 knots. Mostly cloudy. A slight
chance of light rain after midnight. Waves 2 feet or less.
.FRIDAY...West winds 5 to 10 knots. Mostly cloudy. Waves 2 feet
or less.
.FRIDAY NIGHT...North winds 5 to 10 knots increasing to 10 to
15 knots after midnight. Mostly cloudy until early morning
becoming 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 42 degrees.

$$

SF

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