National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FZUS53 KDTX 230802
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
359 AM EDT Tue Apr 23 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.

LHZ422-231500-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
359 AM EDT Tue Apr 23 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...Southwest winds 20 to 25 knots with gusts to 30 knots
diminishing to 15 to 20 knots late in the afternoon. Mostly
cloudy. A chance of showers in the morning, then showers likely
and a slight chance of thunderstorms in the afternoon. Waves 3 to
5 feet. Waves occasionally around 7 feet.
.TONIGHT...Southwest winds 15 to 20 knots becoming northwest
20 to 25 knots in the late evening and early morning, then
becoming north to 30 knots after midnight. Mostly cloudy. Light
showers likely and a slight chance of thunderstorms in the
evening, then showers likely, a slight chance of thunderstorms
and light snow showers after midnight. Waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and early morning,
then building to 4 to 6 feet after midnight. Waves occasionally
around 8 feet.
.WEDNESDAY...North winds to 30 knots becoming northeast 15 to
20 knots. Partly cloudy in the morning then clearing. Waves 3 to
5 feet. Waves occasionally around 7 feet.
.WEDNESDAY NIGHT...Northeast winds 20 to 25 knots becoming east
10 to 15 knots. Clear. 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.

$$

LHZ421-231500-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
359 AM EDT Tue Apr 23 2024

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON...

.TODAY...Southwest winds 20 to 25 knots with gusts to 30 knots
diminishing to 15 to 20 knots late in the afternoon. Mostly
cloudy. A chance of showers in the morning, then showers likely
and a slight chance of thunderstorms in the afternoon. Waves 3 to
5 feet. Waves occasionally around 6 feet.
.TONIGHT...Southwest winds 15 to 20 knots veering to the
northwest in the late evening and early morning, then becoming
north to 30 knots after midnight. Mostly cloudy. Light showers
likely and a slight chance of thunderstorms in the evening, then
a slight chance of showers, thunderstorms and light snow showers
after midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet in the
late evening and early morning, then building to 8 to 12 feet
after midnight. Waves occasionally around 15 feet.
.WEDNESDAY...North winds to 30 knots with gusts to 35 knot gales
becoming northeast 15 to 20 knots. Mostly sunny. Waves 6 to 9 feet.
Waves occasionally around 11 feet. A Gale Warning may be needed.
.WEDNESDAY NIGHT...Northeast winds 15 to 20 knots becoming east
5 to 10 knots after midnight. Clear. 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.

$$

LHZ441-231500-
Port Austin to Harbor Beach MI-
359 AM EDT Tue Apr 23 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS AFTERNOON...

.TODAY...Southwest winds 20 to 25 knots diminishing to 15 to
20 knots in the afternoon. Mostly cloudy. A chance of showers in
the morning, then showers likely and a chance of thunderstorms in
the afternoon. Waves 2 to 4 feet.
.TONIGHT...Southwest winds 10 to 15 knots becoming west 15 to
20 knots in the late evening and early morning, then becoming
north to 30 knots after midnight. Mostly cloudy. Rain showers
likely and a chance of thunderstorms in the evening, then a
slight chance of showers, thunderstorms and light snow showers
after midnight. Waves 1 to 3 feet building to 8 to 12 feet after
midnight. Waves occasionally around 15 feet.
.WEDNESDAY...North winds to 30 knots diminishing to 15 to
20 knots. Partly cloudy in the morning then clearing. Waves 8 to
12 feet. Waves occasionally around 15 feet.
.WEDNESDAY NIGHT...North winds 10 to 15 knots becoming northeast
5 to 10 knots in the late evening and overnight. Clear. Waves
3 to 5 feet subsiding to 1 to 3 feet after midnight. Waves
occasionally around 7 feet.

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

$$

LHZ442-231500-
Harbor Beach to Port Sanilac MI-
359 AM EDT Tue Apr 23 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS AFTERNOON...

.TODAY...Southwest winds 15 to 20 knots. Mostly cloudy. A chance
of showers in the morning, then showers likely and a slight
chance of thunderstorms in the afternoon. Waves 2 to 4 feet.
.TONIGHT...Southwest winds 15 to 20 knots becoming west 10 to
15 knots in the late evening and early morning, then becoming
north to 30 knots after midnight. Mostly cloudy with showers
likely and a slight chance of thunderstorms. Waves 1 to 3 feet
building to 6 to 9 feet after midnight. Waves occasionally around
12 feet.
.WEDNESDAY...North winds to 30 knots diminishing to 20 to
25 knots in the late morning and afternoon. Partly cloudy in the
morning then clearing. Waves 8 to 12 feet. Waves occasionally
around 15 feet.
.WEDNESDAY NIGHT...North winds 15 to 20 knots becoming northeast
5 to 10 knots. Clear. Waves 4 to 6 feet subsiding to 1 to 3 feet
after midnight. Waves occasionally around 8 feet.

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

$$

LHZ443-231500-
Port Sanilac to Port Huron MI-
359 AM EDT Tue Apr 23 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS AFTERNOON...

.TODAY...Southwest winds 15 to 20 knots. Mostly cloudy. A chance
of showers in the morning, then showers likely and a slight
chance of thunderstorms in the afternoon. Waves 2 to 4 feet.
.TONIGHT...Southwest winds 15 to 20 knots becoming west 10 to
15 knots in the late evening and early morning, then becoming
northwest to 30 knots after midnight. Mostly cloudy with showers
likely and a slight chance of thunderstorms. Waves 1 to 3 feet
building to 4 to 6 feet after midnight. Waves occasionally around
8 feet.
.WEDNESDAY...North winds to 30 knots diminishing to 20 to
25 knots early in the afternoon. Partly cloudy in the morning
then clearing. Waves 8 to 12 feet. Waves occasionally around
15 feet.
.WEDNESDAY NIGHT...North winds 15 to 20 knots becoming northeast
10 to 15 knots after midnight. Clear. Waves 4 to 6 feet subsiding
to 2 to 4 feet after midnight. Waves occasionally around 8 feet.

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

$$

LEZ444-231500-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
359 AM EDT Tue Apr 23 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT THIS MORNING
THROUGH THIS AFTERNOON...

.TODAY...Southwest winds 15 to 20 knots. Gusts to 30 knots late
in the morning. A chance of showers in the morning, then showers
in the afternoon. Waves 2 to 4 feet.
.TONIGHT...Southwest winds 15 to 20 knots becoming west 10 to
15 knots in the late evening and overnight. Mostly cloudy with
showers likely. Waves 1 to 3 feet.
.WEDNESDAY...North winds 15 to 20 knots diminishing to 10 to
15 knots early in the afternoon. Partly cloudy in the morning
then clearing. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots diminishing to
5 to 10 knots in the late evening and overnight. Clear. Waves
2 feet or less.

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

The water temperature at Belle Isle is 51 degrees.

$$

CB

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