Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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FZUS53 KDTX 220210
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
1010 PM 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.

LHZ422-221015-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
1010 PM EDT Sun Apr 21 2024

.REST OF TONIGHT...Northwest winds 10 to 15 knots becoming
northeast 5 to 10 knots after midnight, then veering to the
southeast early in the morning. Mostly clear. Waves 2 feet or
less.
.MONDAY...South winds 10 to 15 knots becoming southwest 15 to
20 knots early in the afternoon. Sunny. Waves 2 feet or less.
.MONDAY NIGHT...Southwest winds 15 to 20 knots increasing to 20 to 25
knots in the late evening and overnight. Partly cloudy in the
evening, then cloudy with showers likely after midnight. Waves 1 to 3
feet. A Small Craft Advisory may be needed.
.TUESDAY...Southwest winds to 30 knots becoming west 15 to
20 knots. Mostly cloudy. Light showers likely. Waves 2 to 4 feet.

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

$$

LHZ421-221015-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
1010 PM EDT Sun Apr 21 2024

.REST OF TONIGHT...North winds 10 to 15 knots becoming southeast
5 to 10 knots early in the morning. Mostly clear. Waves 1 to
3 feet.
.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 15 to 20 knots increasing to 20 to 25
knots with gusts to 30 knots in the late evening and overnight.
Partly cloudy in the evening, then cloudy with showers likely after
midnight. Waves 1 to 3 feet building to 2 to 4 feet after midnight. A
Small Craft Advisory may be needed.
.TUESDAY...Southwest winds to 30 knots diminishing to 15 to
20 knots. Mostly cloudy. Light showers likely. Waves 3 to 5 feet.
Waves occasionally around 7 feet.

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

$$

LHZ441-221015-
Port Austin to Harbor Beach MI-
1010 PM EDT Sun Apr 21 2024

.REST OF TONIGHT...North winds 10 to 15 knots becoming west 5 to
10 knots early in the morning. Mostly clear. Waves 1 to 3 feet
building to 2 to 4 feet after midnight.
.MONDAY...Southwest winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. Sunny. Waves 1 to
3 feet.
.MONDAY NIGHT...Southwest winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and overnight. Partly cloudy
in the evening, then mostly cloudy with a chance of showers after
midnight. Waves 1 to 3 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.
A chance of showers in the morning, then showers likely in the
afternoon. Waves 3 to 5 feet. Waves occasionally around 7 feet. A
Small Craft Advisory may be needed.

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

$$

LHZ442-221015-
Harbor Beach to Port Sanilac MI-
1010 PM EDT Sun Apr 21 2024

.REST OF TONIGHT...North winds 10 to 15 knots becoming west 5 to
10 knots early in the morning. Mostly clear. Waves 1 to 3 feet
building to 2 to 4 feet early in the morning.
.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 becoming southwest
15 to 20 knots after midnight. Partly cloudy in the evening, then
mostly cloudy with a chance of showers after midnight. Waves 1 to
3 feet.
.TUESDAY...South winds 15 to 20 knots becoming southwest 20 to 25
knots in the late morning and early afternoon, then diminishing to 15
to 20 knots early in the afternoon. Mostly cloudy. Light showers
likely. Waves 2 to 4 feet. A Small Craft Advisory may be needed.

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

$$

LHZ443-221015-
Port Sanilac to Port Huron MI-
1010 PM EDT Sun Apr 21 2024

.REST OF TONIGHT...Northwest winds 5 to 10 knots. 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 15 to
20 knots after midnight. Partly cloudy in the evening becoming
mostly cloudy. Waves 1 to 3 feet.
.TUESDAY...South winds 15 to 20 knots becoming southwest 20 to 25
knots in the late morning and early afternoon, then diminishing to 15
to 20 knots early in the afternoon. Mostly cloudy. Light showers
likely. Waves 2 to 4 feet. A Small Craft Advisory may be needed.

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

$$

LEZ444-221015-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
1010 PM EDT Sun Apr 21 2024

.REST OF TONIGHT...Northwest winds 10 to 15 knots diminishing to
5 to 10 knots after midnight. Clear. Waves 2 feet or less.
.MONDAY...Southwest winds 5 to 10 knots. Mostly sunny. Waves
2 feet or less.
.MONDAY NIGHT...Southwest winds 10 to 15 knots increasing to
15 to 20 knots after midnight. Partly cloudy in the evening
becoming mostly cloudy. Waves 1 to 3 feet.
.TUESDAY...Southwest winds 15 to 20 knots. Mostly cloudy. Light
showers likely in the morning, then showers likely in the
afternoon. Waves 2 to 4 feet.

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

The water temperature at Belle Isle is 50 degrees.

$$

KGK

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


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