Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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FZUS53 KDTX 210803
NSHDTX

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

LHZ422-211500-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
401 AM EDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING
THROUGH THIS EVENING...

.TODAY...West winds 15 to 20 knots increasing to 20 to 25 knots
late in the afternoon. Partly cloudy in the morning then
clearing. Waves 1 to 3 feet building to 2 to 4 feet late in the
afternoon.
.TONIGHT...Northwest winds 20 to 25 knots becoming north 10 to
15 knots in the late evening and early morning, then veering to
the northeast after midnight. Mostly clear. Waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight.
.MONDAY...South winds 10 to 15 knots becoming southwest 15 to
20 knots early in the afternoon. Sunny. Waves 1 to 3 feet.
.MONDAY NIGHT...Southwest winds 20 to 25 knots increasing to 30 knots
with gusts to 35 knot gales in the late evening and overnight. Partly
cloudy in the evening, then cloudy with a chance of showers after
midnight. Waves 3 to 5 feet. Waves occasionally around 7 feet. A Gale
Warning may be needed.

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

$$

LHZ421-211500-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
401 AM EDT Sun Apr 21 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM EDT THIS MORNING
THROUGH THIS EVENING...

.TODAY...West winds 15 to 20 knots. Partly cloudy in the morning
then clearing. Waves 1 to 3 feet.
.TONIGHT...Northwest winds 15 to 20 knots becoming north 10 to
15 knots in the late evening and overnight. Mostly clear. Waves
1 to 3 feet.
.MONDAY...South winds 10 to 15 knots increasing to 15 to 20 knots
early in the afternoon. Sunny. Waves 1 to 3 feet.
.MONDAY NIGHT...Southwest winds 20 to 25 knots increasing to
30 knots after midnight. Partly cloudy in the evening, then
cloudy with a chance of showers after midnight. Waves 3 to 5 feet
building to 5 to 7 feet after midnight. Waves occasionally around
10 feet.

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

$$

LHZ441-211500-
Port Austin to Harbor Beach MI-
401 AM EDT Sun Apr 21 2024

.TODAY...West winds 10 to 15 knots. Partly cloudy in the morning
then clearing. Waves 1 to 3 feet.
.TONIGHT...North winds 10 to 15 knots. Mostly clear. Waves 2 to
4 feet.
.MONDAY...Southwest winds 5 to 10 knots becoming south 10 to
15 knots in the late morning and afternoon. Sunny. Waves 1 to
3 feet.
.MONDAY NIGHT...South winds 10 to 15 knots increasing to 20 to 25
knots with gusts to 30 knots. Partly cloudy in the evening, then
mostly cloudy with a chance of showers after midnight. Waves 1 to 3
feet building to 2 to 4 feet after midnight. A Small Craft Advisory
may be needed.

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

$$

LHZ442-211500-
Harbor Beach to Port Sanilac MI-
401 AM EDT Sun Apr 21 2024

.TODAY...West winds 10 to 15 knots. Partly cloudy in the morning
then clearing. Waves 2 feet or less.
.TONIGHT...Northwest winds 10 to 15 knots becoming north 5 to
10 knots in the late evening and overnight. Mostly clear. Waves
1 to 3 feet.
.MONDAY...Southwest winds 5 to 10 knots becoming south 10 to
15 knots in the late morning and afternoon. Mostly sunny. Waves
1 to 3 feet.
.MONDAY NIGHT...South winds 10 to 15 knots increasing to 15 to 20
knots with gusts to 30 knots after midnight. Partly cloudy in the
evening becoming mostly cloudy. Waves 1 to 3 feet building to 2 to 4
feet after midnight. A Small Craft Advisory may be needed.

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

$$

LHZ443-211500-
Port Sanilac to Port Huron MI-
401 AM EDT Sun Apr 21 2024

.TODAY...West winds 10 to 15 knots. Mostly cloudy in the morning
becoming partly cloudy. Waves 2 feet or less.
.TONIGHT...Northwest winds 10 to 15 knots becoming north 5 to
10 knots in the late evening and overnight. Mostly clear. Waves
2 feet or less.
.MONDAY...Southwest winds 5 to 10 knots becoming south 10 to
15 knots in the late morning and afternoon. Mostly sunny. Waves
1 to 3 feet.
.MONDAY NIGHT...South winds 10 to 15 knots increasing to 20 to 25
knots. Partly cloudy in the evening becoming mostly cloudy. Waves 1
to 3 feet building to 2 to 4 feet after midnight. A Small Craft
Advisory may be needed.

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

$$

LEZ444-211500-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
401 AM EDT Sun Apr 21 2024

.TODAY...West winds 10 to 15 knots. Mostly cloudy in the morning
then clearing. Waves 2 feet or less.
.TONIGHT...West winds 10 to 15 knots becoming northwest 5 to
10 knots in the late evening and overnight. Clear. Waves 2 feet
or less.
.MONDAY...East winds 5 to 10 knots veering to the south in the
late morning and afternoon. Mostly sunny. Waves 2 feet or less.
.MONDAY NIGHT...South winds 5 to 10 knots becoming southwest
15 to 20 knots. Partly cloudy in the evening becoming mostly
cloudy. Waves 1 to 3 feet.

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

The water temperature at Belle Isle is 49 degrees.

$$

CB

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


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