994
FZUS53 KDTX 200753
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
353 AM EDT Sun Apr 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.

LHZ422-201600-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
353 AM EDT Sun Apr 20 2025

.TODAY...Northeast winds 5 to 10 knots increasing to 15 to
20 knots. Mostly sunny in the morning becoming partly cloudy.
Waves 2 feet or less.
.TONIGHT...Northeast winds 15 to 20 knots becoming east 10 to
15 knots in the late evening and overnight. Mostly cloudy with a
slight chance of light rain. Waves 1 to 3 feet.
.MONDAY...Southeast winds 15 to 20 knots veering to the south in the
late morning and early afternoon, then becoming southwest 20 to 25
knots with gusts to 35 knot gales early in the afternoon. Light rain.
Waves 3 to 5 feet. Waves occasionally around 7 feet. A Gale Warning
may be needed.
.MONDAY NIGHT...West winds 20 to 25 knots with gusts to 35 knot
gales. Mostly cloudy in the evening becoming partly cloudy. Waves
4 to 6 feet. Waves occasionally around 8 feet.

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

$$

LHZ421-201600-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
353 AM EDT Sun Apr 20 2025

.TODAY...Northeast winds 5 to 10 knots increasing to 15 to
20 knots. Mostly sunny in the morning becoming partly cloudy.
Waves 1 to 3 feet.
.TONIGHT...East winds 15 to 20 knots diminishing to 10 to
15 knots in the late evening and early morning, then increasing
to 15 to 20 knots after midnight. Mostly cloudy. A slight chance
of light rain in the evening, then light rain likely after
midnight. Waves 1 to 3 feet building to 2 to 4 feet after
midnight.
.MONDAY...Southeast winds 20 to 25 knots veering to the southwest
with gusts to 30 knots early in the afternoon. Mostly cloudy. Light
rain likely in the morning, then a chance of light rain in the
afternoon. Waves 4 to 6 feet. Waves occasionally around 8 feet. A
Small Craft Advisory may be needed.
.MONDAY NIGHT...Southwest winds 20 to 25 knots with gusts to 35 knot
gales. Partly cloudy. Waves 5 to 7 feet. Waves occasionally around 10
feet. A Gale Warning may be needed.

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

$$

LHZ441-201600-
Port Austin to Harbor Beach MI-
353 AM EDT Sun Apr 20 2025

.TODAY...North winds 10 to 15 knots becoming northeast 5 to
10 knots in the late morning and early afternoon, then increasing
to 10 to 15 knots late in the afternoon. Mostly sunny. Waves 1 to
3 feet.
.TONIGHT...East winds 10 to 15 knots becoming southeast 15 to
20 knots after midnight. Mostly cloudy. A slight chance of light
rain in the evening, then a chance of light rain after midnight.
Waves 1 to 3 feet.
.MONDAY...Southeast winds 20 to 25 knots veering to the southwest
early in the afternoon. Gusts to 30 knots. Light rain in the morning,
then a chance of light rain in the afternoon. Waves 4 to 6 feet.
Waves occasionally around 7 feet. A Small Craft Advisory may be
needed.
.MONDAY NIGHT...Southwest winds 20 to 25 knots with gusts to
30 knots. Partly cloudy. Waves 4 to 6 feet. Waves occasionally
around 8 feet.

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

$$

LHZ442-201600-
Harbor Beach to Port Sanilac MI-
353 AM EDT Sun Apr 20 2025

.TODAY...Northeast winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. Mostly sunny in the morning
becoming partly cloudy. Waves 1 to 3 feet.
.TONIGHT...Northeast winds 10 to 15 knots veering to the east in
the late evening and early morning, then becoming southeast 15 to
20 knots after midnight. Mostly cloudy. A chance of light rain
after midnight. Waves 2 feet or less building to 2 to 4 feet
after midnight.
.MONDAY...Southeast winds 20 to 25 knots with gusts to 30 knots
becoming southwest 15 to 20 knots early in the afternoon. Mostly
cloudy with light rain likely. Waves 4 to 6 feet. Waves occasionally
around 7 feet. A Small Craft Advisory may be needed.
.MONDAY NIGHT...Southwest winds 20 to 25 knots with gusts to
30 knots becoming west 15 to 20 knots in the late evening and
overnight. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to
3 feet after midnight.

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

$$

LHZ443-201600-
Port Sanilac to Port Huron MI-
353 AM EDT Sun Apr 20 2025

.TODAY...Northeast winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. Mostly sunny in the morning
becoming partly cloudy. Waves 1 to 3 feet.
.TONIGHT...Northeast winds 10 to 15 knots veering to the east in
the late evening and early morning, then becoming southeast 15 to
20 knots after midnight. Mostly cloudy. A chance of light rain
after midnight. Waves 2 feet or less building to 2 to 4 feet
after midnight.
.MONDAY...Southeast winds 15 to 20 knots veering to the southwest
with gusts to 30 knots early in the afternoon. Cloudy in the morning
becoming partly cloudy. A chance of light rain. Waves 4 to 6 feet.
Waves occasionally around 8 feet. A Small Craft Advisory may be
needed.
.MONDAY NIGHT...West winds 15 to 20 knots. Gusts to 30 knots
early in the evening. Partly cloudy. Waves 2 to 4 feet subsiding
to 1 to 3 feet after midnight.

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

$$

LEZ444-201600-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
353 AM EDT Sun Apr 20 2025

.TODAY...East winds 10 to 15 knots increasing to 15 to 20 knots
late in the afternoon. Mostly sunny in the morning, then partly
cloudy with a slight chance of light rain in the afternoon. Waves
1 to 3 feet.
.TONIGHT...East winds 15 to 20 knots. Mostly cloudy. A slight
chance of light rain in the evening, then a chance of light rain
after midnight. Waves 2 to 4 feet.
.MONDAY...Southeast winds 10 to 15 knots becoming south 15 to 20
knots in the late morning and early afternoon, then becoming
southwest 20 to 25 knots with gusts to 30 knots early in the
afternoon. Mostly cloudy with light rain likely in the morning, then
partly cloudy in the afternoon. Waves 1 to 3 feet building to 2 to 4
feet early in the afternoon. A Small Craft Advisory may be needed.
.MONDAY NIGHT...West winds 20 to 25 knots with gusts to 30 knots
diminishing to 15 to 20 knots in the late evening and overnight.
Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the
late evening and overnight.

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

The water temperature at Belle Isle is 49 degrees.

$$

MR

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