Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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FZUS53 KDTX 040722
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
322 AM EDT Fri Apr 4 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.

LHZ422-041530-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
322 AM EDT Fri Apr 4 2025

.TODAY...North winds 5 to 10 knots becoming northeast 10 to
15 knots in the afternoon. Mostly sunny in the morning becoming
partly cloudy. Waves 2 feet or less.
.TONIGHT...Northeast winds 10 to 15 knots. Light rain. Waves 1 to
3 feet.
.SATURDAY...Northeast winds 15 to 20 knots becoming north 10 to
15 knots in the late morning and afternoon. Mostly cloudy. Light
rain in the morning. Waves 1 to 3 feet.
.SATURDAY NIGHT...Northwest winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and overnight. Mostly cloudy
in the evening becoming partly cloudy. Waves 1 to 3 feet.

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

$$

LHZ421-041530-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
322 AM EDT Fri Apr 4 2025

.TODAY...North winds 5 to 10 knots veering to the northeast early
in the afternoon, then increasing to 10 to 15 knots late in the
afternoon. Mostly sunny. Waves 2 feet or less.
.TONIGHT...Northeast winds 10 to 15 knots. Light rain likely in
the evening, then light rain after midnight. Waves 1 to 3 feet.
.SATURDAY...Northeast winds 15 to 20 knots becoming north 10 to
15 knots in the late morning and afternoon. Mostly cloudy. Light
rain in the morning. Waves 1 to 3 feet.
.SATURDAY NIGHT...Northwest winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and overnight. 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.

$$

LHZ441-041530-
Port Austin to Harbor Beach MI-
322 AM EDT Fri Apr 4 2025

.TODAY...North winds 5 to 10 knots veering to the northeast in
the afternoon. Mostly sunny. Waves 2 feet or less.
.TONIGHT...East winds 10 to 15 knots. Cloudy with light rain
likely. Waves 2 feet or less.
.SATURDAY...Northeast winds 10 to 15 knots backing to the
northwest early in the afternoon. Mostly cloudy with a chance of
light rain. Waves 1 to 3 feet.
.SATURDAY NIGHT...North winds 10 to 15 knots becoming northwest 15 to
20 knots in the late evening and overnight. Mostly cloudy in the
evening becoming partly cloudy. Waves 1 to 3 feet building to 3 to 5
feet in the late evening and overnight. Waves occasionally around 7
feet. A Small Craft Advisory may be needed.

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

$$

LHZ442-041530-
Harbor Beach to Port Sanilac MI-
322 AM EDT Fri Apr 4 2025

.TODAY...North winds 5 to 10 knots. Mostly sunny. Waves 2 feet or
less.
.TONIGHT...Northeast winds 10 to 15 knots diminishing to 5 to
10 knots in the late evening and early morning, then becoming
east 10 to 15 knots after midnight. Light rain. Waves 2 feet or
less.
.SATURDAY...Northeast winds 10 to 15 knots backing to the
northwest early in the afternoon. Mostly cloudy. Light rain in
the morning. Waves 1 to 3 feet.
.SATURDAY NIGHT...North winds 10 to 15 knots becoming northwest 15 to
20 knots in the late evening and overnight. Mostly cloudy in the
evening becoming partly cloudy. Waves 1 to 3 feet building to 3 to 5
feet after midnight. Waves occasionally around 7 feet. A Small Craft
Advisory may be needed.

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

$$

LHZ443-041530-
Port Sanilac to Port Huron MI-
322 AM EDT Fri Apr 4 2025

.TODAY...Northeast winds 5 to 10 knots. Mostly sunny. Waves
2 feet or less.
.TONIGHT...Northeast winds 10 to 15 knots diminishing to 5 to
10 knots in the late evening and early morning, then becoming
east 10 to 15 knots after midnight. Light rain. Waves 1 to
3 feet.
.SATURDAY...Northeast winds 10 to 15 knots backing to the north
in the late morning and afternoon. Cloudy. Light rain in the
morning, then light rain likely in the afternoon. Waves 1 to
3 feet.
.SATURDAY NIGHT...North winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. Mostly 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.

$$

LEZ444-041530-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
322 AM EDT Fri Apr 4 2025

.TODAY...Northeast winds 5 to 10 knots becoming east 10 to
15 knots in the late morning and afternoon. Partly cloudy. A
chance of light rain in the afternoon. Waves 2 feet or less.
.TONIGHT...East winds 10 to 15 knots increasing to 15 to 20 knots
in the late evening and overnight. Rain in the evening, then rain
and a slight chance of thunderstorms after midnight. Waves 1 to
3 feet building to 2 to 4 feet in the late evening and overnight.
.SATURDAY...East winds 10 to 15 knots backing to the west in the
late morning and afternoon. Cloudy. Light rain in the morning,
then light rain likely in the afternoon. Waves 1 to 3 feet.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots becoming north
10 to 15 knots in the late evening and overnight. Cloudy. Light
rain likely in the evening, then light rain likely and a chance
of light snow after midnight. Waves 2 feet or less.

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

The water temperature at Belle Isle is 43 degrees.

$$

AM

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a www.weather.gov/greatlakes