505
FZUS53 KDTX 060740
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
340 AM EDT Sun Apr 6 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.

LHZ422-061545-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
340 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY MORNING...

.TODAY...Northwest winds 5 to 10 knots backing to the southwest
late in the afternoon. Partly cloudy in the morning then
clearing. Waves 2 feet or less.
.TONIGHT...Southwest winds 5 to 10 knots becoming south 20 to
25 knots. Partly cloudy. A chance of light snow showers after
midnight. Waves 2 feet or less building to 3 to 5 feet after
midnight. Waves occasionally around 7 feet.
.MONDAY...West winds 20 to 25 knots veering to the northwest in
the late morning and early afternoon, then diminishing to 15 to
20 knots early in the afternoon. Mostly cloudy. Snow showers
likely in the morning, then a chance of light snow showers in the
afternoon. Waves 2 to 4 feet.
.MONDAY NIGHT...Northwest winds to 30 knots diminishing to 20 to
25 knots after midnight. Partly cloudy. Waves 2 to 4 feet
subsiding to 1 to 3 feet after midnight.

Small Craft Advisory conditions are expected to continue beyond
the forecast period. Please refer to the Open Lakes Forecast for
more information.

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

$$

LHZ421-061545-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
340 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
TUESDAY MORNING...

.TODAY...Northwest winds 5 to 10 knots backing to the southwest
in the afternoon. Partly cloudy in the morning then clearing.
Waves 2 feet or less.
.TONIGHT...South winds 10 to 15 knots increasing to 20 to
25 knots. Partly cloudy. A chance of light snow showers after
midnight. Waves 2 feet or less building to 3 to 5 feet after
midnight. Waves occasionally around 7 feet.
.MONDAY...West winds 20 to 25 knots with gusts to 30 knots
becoming northwest to 30 knots in the late morning and early
afternoon, then diminishing to 20 to 25 knots early in the
afternoon. Mostly cloudy with a chance of snow showers. Waves
4 to 6 feet building to 6 to 9 feet in the late morning and
afternoon. Waves occasionally around 12 feet.
.MONDAY NIGHT...Northwest winds to 30 knots. Partly cloudy with a
chance of light snow showers. Waves 5 to 7 feet. Waves
occasionally around 10 feet.

Small Craft Advisory conditions are expected to continue beyond
the forecast period. Please refer to the Open Lakes Forecast for
more information.

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

$$

LHZ441-061545-
Port Austin to Harbor Beach MI-
340 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY MORNING...

.TODAY...Northwest winds 10 to 15 knots diminishing to 5 to
10 knots in the late morning and early afternoon, then veering to
the east late in the afternoon. Partly cloudy in the morning then
clearing. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late
morning and afternoon.
.TONIGHT...South winds 10 to 15 knots increasing to 15 to
20 knots after midnight. Partly cloudy. A slight chance of light
snow showers after midnight. Waves 1 to 3 feet.
.MONDAY...Southwest winds 20 to 25 knots becoming northwest to
30 knots in the late morning and afternoon. Mostly cloudy with
snow showers likely. Waves 3 to 5 feet building to 10 to 14 feet.
Waves occasionally around 18 feet.
.MONDAY NIGHT...Northwest winds to 30 knots with gusts to 35 knot
gales. Partly cloudy in the evening, then mostly cloudy with a chance
of light snow showers after midnight. Waves 8 to 12 feet. Waves
occasionally around 15 feet. A Gale Warning may be needed.

Small Craft Advisory conditions are expected to continue beyond
the forecast period. Please refer to the Open Lakes Forecast for
more information.

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

$$

LHZ442-061545-
Harbor Beach to Port Sanilac MI-
340 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY MORNING...

.TODAY...Northwest winds 10 to 15 knots diminishing to 5 to
10 knots late in the morning, then becoming north 10 to 15 knots
early in the afternoon becoming east 5 to 10 knots late in the
afternoon. Partly cloudy in the morning then clearing. Waves 2 to
4 feet subsiding to 1 to 3 feet in the late morning and
afternoon.
.TONIGHT...South winds 10 to 15 knots increasing to 15 to
20 knots after midnight. Partly cloudy. Waves 1 to 3 feet.
.MONDAY...Southwest winds 15 to 20 knots becoming northwest to
30 knots in the late morning and afternoon. Mostly cloudy with
light snow showers likely. Waves 2 to 4 feet building to 8 to
12 feet. Waves occasionally around 15 feet.
.MONDAY NIGHT...Northwest winds 20 to 25 knots increasing to
30 knots in the late evening and early morning, then diminishing
to 20 to 25 knots with gusts to 30 knots after midnight. Partly
cloudy. Light snow showers likely in the evening, then a chance
of light snow showers after midnight. Waves 6 to 9 feet. Waves
occasionally around 12 feet.

Small Craft Advisory conditions are expected to continue beyond
the forecast period. Please refer to the Open Lakes Forecast for
more information.

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

$$

LHZ443-061545-
Port Sanilac to Port Huron MI-
340 AM EDT Sun Apr 6 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY MORNING...

.TODAY...North winds 10 to 15 knots diminishing to 5 to 10 knots
late in the morning, then increasing to 10 to 15 knots early in
the afternoon becoming northeast 5 to 10 knots late in the
afternoon. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to
3 feet in the late morning and afternoon.
.TONIGHT...East winds 5 to 10 knots becoming south 10 to 15 knots
in the late evening and early morning, then increasing to 15 to
20 knots after midnight. Partly cloudy. Waves 1 to 3 feet.
.MONDAY...South winds 15 to 20 knots veering to the west in the
late morning and early afternoon, then becoming north 20 to
25 knots early in the afternoon. Mostly cloudy with light snow
showers likely. Waves 1 to 3 feet building to 4 to 6 feet early
in the afternoon. Waves occasionally around 8 feet.
.MONDAY NIGHT...Northwest winds 20 to 25 knots. Gusts to 30 knots
after midnight. Partly cloudy. Light snow showers likely in the
evening. Waves 5 to 7 feet. Waves occasionally around 10 feet.

Small Craft Advisory conditions are expected to continue beyond
the forecast period. Please refer to the Open Lakes Forecast for
more information.

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

$$

LEZ444-061545-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
340 AM EDT Sun Apr 6 2025

.TODAY...North winds 10 to 15 knots becoming northeast 5 to
10 knots in the late morning and early afternoon, then becoming
light and variable late in the afternoon. Mostly cloudy. Waves
2 feet or less.
.TONIGHT...South winds 5 to 10 knots becoming southwest 10 to
15 knots in the late evening and overnight. Mostly cloudy in the
evening becoming partly cloudy. Waves 2 feet or less.
.MONDAY...Southwest winds 15 to 20 knots veering to the northwest
early in the afternoon. Mostly sunny in the morning becoming
mostly cloudy. A chance of light rain and snow showers. Waves
1 to 3 feet.
.MONDAY NIGHT...Northwest winds 15 to 20 knots. Mostly clear.
Waves 1 to 3 feet.

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

The water temperature at Belle Isle is 45 degrees.

$$

SC

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