Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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FZUS53 KDTX 181402
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
Issued by National Weather Service Grand Rapids MI
1002 AM EDT Thu Apr 18 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.

LHZ422-182215-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
1002 AM EDT Thu Apr 18 2024

.REST OF TODAY...West winds 10 to 15 knots becoming southwest
5 to 10 knots late in the afternoon. Mostly cloudy. A slight
chance of showers in the afternoon. Waves 2 feet or less.
.TONIGHT...South winds 5 to 10 knots backing to the north in the
late evening and early morning, then increasing to 10 to 15 knots
after midnight. A slight chance of showers in the evening, then
showers after midnight. Waves 2 feet or less.
.FRIDAY...West winds 15 to 20 knots increasing to 20 to 25 knots with
gusts to 30 knots early in the afternoon. Partly cloudy with a slight
chance of showers in the morning, then sunny in the afternoon. Waves
2 to 4 feet building to 4 to 6 feet early in the afternoon. Waves
occasionally around 8 feet. A Small Craft Advisory may be needed.
.FRIDAY NIGHT...West winds 20 to 25 knots with gusts to 30 knots
diminishing to 15 to 20 knots in the late evening and early
morning, then increasing to 20 to 25 knots after midnight. Mostly
clear. Waves 4 to 6 feet. Waves occasionally around 8 feet.

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

$$

LHZ421-182215-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
1002 AM EDT Thu Apr 18 2024

.REST OF TODAY...West winds 10 to 15 knots becoming southwest
5 to 10 knots late in the afternoon. Mostly cloudy. A slight
chance of showers in the afternoon. Waves 1 to 3 feet.
.TONIGHT...South winds 5 to 10 knots backing to the southeast in
the late evening and early morning, then becoming north 10 to
15 knots after midnight. Light showers likely in the evening,
then showers after midnight. Waves 2 feet or less.
.FRIDAY...Northwest winds 10 to 15 knots becoming west 20 to 25 knots
with gusts to 30 knots. Partly cloudy with a slight chance of showers
in the morning, then sunny in the afternoon. Waves 2 to 4 feet
building to 4 to 6 feet in the late morning and afternoon. Waves
occasionally around 8 feet. A Small Craft Advisory may be needed.
.FRIDAY NIGHT...West winds 20 to 25 knots with gusts to 30 knots
diminishing to 15 to 20 knots in the late evening and early
morning, then increasing to 20 to 25 knots after midnight. Mostly
clear. Waves 4 to 6 feet. Waves occasionally around 8 feet.

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

$$

LHZ441-182215-
Port Austin to Harbor Beach MI-
1002 AM EDT Thu Apr 18 2024

.REST OF TODAY...West winds 10 to 15 knots becoming southwest
5 to 10 knots late in the afternoon. Mostly cloudy late in the
morning becoming partly cloudy. A slight chance of showers in the
afternoon. Waves 1 to 3 feet.
.TONIGHT...Southeast winds 5 to 10 knots backing to the northeast
after midnight. A slight chance of showers in the evening, then
showers after midnight. Waves 2 feet or less.
.FRIDAY...Northwest winds 10 to 15 knots becoming west 15 to 20 knots
with gusts to 30 knots early in the afternoon. Partly cloudy with
showers likely in the morning, then sunny 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. A Small Craft Advisory may be
needed.
.FRIDAY NIGHT...West winds 15 to 20 knots with gusts to 30 knots
diminishing to 10 to 15 knots in the late evening and early
morning, then increasing to 15 to 20 knots after midnight. Mostly
clear. Waves 3 to 5 feet. Waves occasionally around 7 feet.

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

$$

LHZ442-182215-
Harbor Beach to Port Sanilac MI-
1002 AM EDT Thu Apr 18 2024

.REST OF TODAY...West winds 10 to 15 knots diminishing to 5 to
10 knots early in the afternoon, then backing to the southwest
late in the afternoon. Mostly cloudy late in the morning becoming
partly cloudy. A slight chance of showers in the afternoon. Waves
2 feet or less.
.TONIGHT...Southeast winds 5 to 10 knots. A chance of showers in
the evening, then showers after midnight. Waves 2 feet or less.
.FRIDAY...Northwest winds 10 to 15 knots becoming west 15 to
20 knots early in the afternoon. Partly cloudy with a chance of
showers in the morning, then sunny in the afternoon. Waves 1 to
3 feet.
.FRIDAY NIGHT...West winds 15 to 20 knots diminishing to 10 to
15 knots in the late evening and overnight. Mostly clear. Waves
1 to 3 feet.

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

$$

LHZ443-182215-
Port Sanilac to Port Huron MI-
1002 AM EDT Thu Apr 18 2024

.REST OF TODAY...West winds 10 to 15 knots diminishing to 5 to
10 knots in the afternoon. Mostly cloudy late in the morning
becoming partly cloudy. Waves 2 feet or less.
.TONIGHT...Southeast winds 5 to 10 knots. A slight chance of
showers in the evening, then showers after midnight. Waves 2 feet
or less.
.FRIDAY...Northwest winds 10 to 15 knots becoming west 15 to
20 knots early in the afternoon. Mostly cloudy with showers in
the morning, then sunny in the afternoon. Waves 1 to 3 feet.
.FRIDAY NIGHT...West winds 15 to 20 knots diminishing to 10 to
15 knots in the late evening and overnight. Mostly clear. Waves
1 to 3 feet.

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

$$

LEZ444-182215-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
1002 AM EDT Thu Apr 18 2024

.REST OF TODAY...West winds 10 to 15 knots becoming southwest
5 to 10 knots early in the afternoon, then backing to the south
late in the afternoon. Partly cloudy. Waves 2 feet or less.
.TONIGHT...Southeast winds 5 to 10 knots becoming east 10 to
15 knots in the late evening and early morning, then becoming
south 5 to 10 knots after midnight. A chance of showers in the
evening, then showers and a slight chance of thunderstorms after
midnight. Waves 2 feet or less.
.FRIDAY...Northwest winds 15 to 20 knots diminishing to 10 to
15 knots in the late morning and early afternoon, then becoming
west 15 to 20 knots early in the afternoon. Partly cloudy with
showers likely and a slight chance of thunderstorms in the
morning, then mostly sunny in the afternoon. Waves 1 to 3 feet.
.FRIDAY NIGHT...West winds 10 to 15 knots diminishing to 5 to
10 knots in the late evening and early morning, then increasing
to 10 to 15 knots after midnight. 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 missing.

$$

TJT

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


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