Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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FZUS53 KDTX 230159
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
959 PM EDT Mon Apr 22 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.

LHZ422-231000-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
959 PM EDT Mon Apr 22 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...

.REST OF TONIGHT...Southwest winds 15 to 20 knots increasing to
20 to 25 knots after midnight. Light showers after midnight.
Waves 2 to 4 feet building to 3 to 5 feet after midnight. Waves
occasionally around 7 feet.
.TUESDAY...Southwest winds 20 to 25 knots with gusts to 30 knots
diminishing to 15 to 20 knots early in the afternoon. Mostly
cloudy. Light showers likely 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.
.TUESDAY NIGHT...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 chance of thunderstorms in the
evening. 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.

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

$$

LHZ421-231000-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
959 PM EDT Mon Apr 22 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...

.REST OF TONIGHT...Southwest winds 15 to 20 knots increasing to
20 to 25 knots after midnight. Light showers after midnight.
Waves 3 to 5 feet. Waves occasionally around 7 feet.
.TUESDAY...Southwest winds 20 to 25 knots with gusts to 30 knots
diminishing to 15 to 20 knots early in the afternoon. Light
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.
.TUESDAY NIGHT...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. Waves
2 to 4 feet 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 8 to 12 feet
subsiding to 6 to 9 feet early in the afternoon. Waves occasionally
around 15 feet. A Gale Warning may be needed.

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

$$

LHZ441-231000-
Port Austin to Harbor Beach MI-
959 PM EDT Mon Apr 22 2024

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

.REST OF TONIGHT...Southwest winds 10 to 15 knots becoming south
15 to 20 knots after midnight. Partly cloudy this evening
becoming mostly cloudy. A chance of showers after midnight. Waves
1 to 3 feet building to 2 to 4 feet early in the morning.
.TUESDAY...Southwest winds 20 to 25 knots diminishing to 15 to
20 knots early in the afternoon. Mostly cloudy. Light showers
likely 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.
.TUESDAY NIGHT...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 slight chance of thunderstorms in the
evening. Waves 2 to 4 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.

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

$$

LHZ442-231000-
Harbor Beach to Port Sanilac MI-
959 PM EDT Mon Apr 22 2024

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

.REST OF TONIGHT...South winds 10 to 15 knots increasing to 15 to
20 knots early in the morning. Partly cloudy this evening
becoming mostly cloudy. A chance of showers after midnight. Waves
1 to 3 feet.
.TUESDAY...Southwest winds 15 to 20 knots with gusts to 25 knots.
Mostly cloudy. A chance of showers in the morning, then a chance
of showers and a slight chance of thunderstorms in the afternoon.
Waves 2 to 4 feet.
.TUESDAY NIGHT...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. Light
showers likely and a chance of thunderstorms in the evening.
Waves 1 to 3 feet building to 5 to 7 feet after midnight. Waves
occasionally around 10 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.

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

$$

LHZ443-231000-
Port Sanilac to Port Huron MI-
959 PM EDT Mon Apr 22 2024

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

.REST OF TONIGHT...South winds 10 to 15 knots increasing to 15 to
20 knots early in the morning. Partly cloudy this evening
becoming mostly cloudy. A chance of showers after midnight. Waves
1 to 3 feet.
.TUESDAY...Southwest winds 15 to 20 knots with gusts to 25 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.
.TUESDAY NIGHT...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.
Light showers likely and a slight chance of thunderstorms in the
evening. 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 6 to 9 feet. Waves occasionally around
11 feet.

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

$$

LEZ444-231000-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
959 PM EDT Mon Apr 22 2024

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

.REST OF TONIGHT...South winds 10 to 15 knots increasing to 15 to
20 knots early in the morning. Partly cloudy this evening, then
mostly cloudy with a slight chance of showers after midnight.
Waves 1 to 3 feet building to 2 to 4 feet after midnight.
.TUESDAY...Southwest winds 15 to 20 knots. Gusts to 30 knots in
the late morning and early afternoon. A chance of showers in the
morning, then showers in the afternoon. Waves 2 to 4 feet.
.TUESDAY NIGHT...Southwest winds 15 to 20 knots becoming west
10 to 15 knots in the late evening and overnight. Mostly cloudy
with a chance of showers. 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.

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

The water temperature at Belle Isle is 51 degrees.

$$

KGK

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a www.weather.gov/greatlakes


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