Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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FZUS53 KDTX 211339
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
939 AM EDT Thu Mar 21 2024

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.

LHZ422-212145-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
939 AM EDT Thu Mar 21 2024

.REST OF TODAY...West winds 10 to 15 knots becoming northwest
5 to 10 knots late in the afternoon. Partly cloudy. Waves 2 feet
or less.
.TONIGHT...North winds 5 to 10 knots becoming east 10 to 15 knots
in the late evening and overnight. Mostly clear. A chance of
light snow after midnight. Waves 2 feet or less.
.FRIDAY...Southeast winds 10 to 15 knots. Snow. Snow may be heavy
at times. Waves 1 to 3 feet.
.FRIDAY NIGHT...East winds 10 to 15 knots backing to the
northeast in the late evening and early morning, then becoming
north 15 to 20 knots after midnight. Mostly cloudy. Snow in the
evening. Snow may be heavy at times in the evening. Waves 1 to
3 feet.

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

$$

LHZ421-212145-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
939 AM EDT Thu Mar 21 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

.REST OF TODAY...Northwest winds 10 to 15 knots becoming west
5 to 10 knots late in the afternoon. Partly cloudy. Waves 2 to
4 feet subsiding to 1 to 3 feet in the afternoon.
.TONIGHT...North winds 5 to 10 knots veering to the east in the
late evening and early morning, then becoming southeast 10 to
15 knots after midnight. Partly cloudy. Waves 2 feet or less.
.FRIDAY...Southeast winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. Snow. Snow may be
heavy at times. Waves 1 to 3 feet building to 2 to 4 feet in the
late morning and afternoon.
.FRIDAY NIGHT...Southeast winds 15 to 20 knots becoming east
10 to 15 knots in the late evening and early morning, then
becoming north 15 to 20 knots after midnight. Mostly cloudy. Snow
in the evening. Snow may be heavy at times in the evening. Waves
2 to 4 feet subsiding to 1 to 3 feet in the late evening and
overnight.

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

$$

LHZ441-212145-
Port Austin to Harbor Beach MI-
939 AM EDT Thu Mar 21 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY...

.REST OF TODAY...Northwest winds 15 to 20 knots diminishing to
10 to 15 knots in the afternoon. Partly cloudy. Waves 3 to 5 feet
subsiding to 1 to 3 feet late in the afternoon. Waves
occasionally around 7 feet.
.TONIGHT...North winds 5 to 10 knots veering to the southeast in
the late evening and overnight. Partly cloudy. Waves 2 feet or
less.
.FRIDAY...Southeast winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. Snow likely in the
morning, then snow in the afternoon. Snow may be heavy at times
in the afternoon. Waves 1 to 3 feet building to 3 to 5 feet in
the late morning and afternoon. Waves occasionally around 7 feet.
.FRIDAY NIGHT...Southeast winds 15 to 20 knots becoming east 5 to
10 knots in the late evening and early morning, then becoming
north 10 to 15 knots after midnight. Mostly cloudy. Snow in the
evening. Snow may be heavy at times in the evening. Waves 3 to
5 feet subsiding to 1 to 3 feet in the late evening and
overnight. Waves occasionally around 7 feet.

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

$$

LHZ442-212145-
Harbor Beach to Port Sanilac MI-
939 AM EDT Thu Mar 21 2024

.REST OF TODAY...Northwest winds 15 to 20 knots diminishing to
10 to 15 knots in the afternoon. Partly cloudy. Waves 2 to 4 feet
subsiding to 1 to 3 feet late in the afternoon.
.TONIGHT...North winds 5 to 10 knots veering to the southeast in
the late evening and early morning, then increasing to 10 to
15 knots after midnight. Mostly clear. Waves 2 feet or less.
.FRIDAY...Southeast winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and afternoon. Snow likely in the morning, then
snow in the afternoon. Waves 2 to 4 feet building to 3 to 5 feet in
the late morning and afternoon. Waves occasionally around 7 feet. A
Small Craft Advisory may be needed.
.FRIDAY NIGHT...East winds 10 to 15 knots backing to the north
after midnight. Cloudy. Snow in the evening. Snow may be heavy at
times in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet
in the late evening and overnight.

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

$$

LHZ443-212145-
Port Sanilac to Port Huron MI-
939 AM EDT Thu Mar 21 2024

.REST OF TODAY...Northwest winds 15 to 20 knots diminishing to
5 to 10 knots. Mostly sunny late in the morning becoming partly
cloudy. Waves 1 to 3 feet.
.TONIGHT...Northeast winds 5 to 10 knots veering to the southeast
in the late evening and early morning, then increasing to 10 to
15 knots after midnight. Mostly clear. Waves 2 feet or less.
.FRIDAY...Southeast winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. Snow likely in the
morning, then snow in the afternoon. Waves 1 to 3 feet building
to 2 to 4 feet in the late morning and afternoon.
.FRIDAY NIGHT...East winds 15 to 20 knots becoming northeast
10 to 15 knots in the late evening and early morning, then
becoming north 15 to 20 knots after midnight. Cloudy. Light snow
in the evening. Waves 2 to 4 feet subsiding to 1 to 3 feet in the
late evening and overnight.

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

$$

LEZ444-212145-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
939 AM EDT Thu Mar 21 2024

.REST OF TODAY...Northwest winds 5 to 10 knots backing to the
southwest late in the afternoon. Mostly sunny late in the morning
becoming partly cloudy. Waves 2 feet or less.
.TONIGHT...Southeast winds 5 to 10 knots increasing to 10 to
15 knots after midnight. Clear in the evening, then partly cloudy
with a chance of light snow after midnight. Waves 2 feet or less.
.FRIDAY...Southeast winds 10 to 15 knots becoming east 15 to
20 knots early in the afternoon. Cloudy. Light snow likely in the
morning. Waves 1 to 3 feet.
.FRIDAY NIGHT...Northeast winds 15 to 20 knots becoming north
10 to 15 knots in the late evening and overnight. Cloudy with
showers, light snow showers and light freezing rain likely. Waves
1 to 3 feet.

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

The water temperature at Belle Isle is 38 degrees.

$$

SS

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a www.weather.gov/greatlakes


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