Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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FZUS53 KDTX 190153
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
953 PM EDT Sun Apr 18 2021

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.

LHZ422-190915-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
953 PM EDT Sun Apr 18 2021

.REST OF TONIGHT...Southeast winds 5 to 10 knots veering to the
southwest after midnight. Mostly clear. Waves 2 feet or less.
.MONDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots early in the afternoon. Partly cloudy in the morning
becoming mostly cloudy. A chance of rain. Waves 1 to 3 feet.
.MONDAY NIGHT...Northwest winds 15 to 20 knots diminishing to
10 to 15 knots after midnight. Partly cloudy. A chance of rain in
the evening. Waves 1 to 3 feet.
.TUESDAY...West winds 10 to 15 knots becoming northwest 5 to
10 knots early in the afternoon. Partly cloudy in the morning
becoming mostly cloudy. Waves 2 feet or less.

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

$$

LHZ421-190915-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
953 PM EDT Sun Apr 18 2021

.REST OF TONIGHT...Southeast winds 5 to 10 knots veering to the
south after midnight. Mostly clear. Waves 2 feet or less.
.MONDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. Partly cloudy in the
morning becoming mostly cloudy. A chance of rain. Waves 1 to
3 feet.
.MONDAY NIGHT...West winds 15 to 20 knots. Mostly clear. A chance
of rain in the evening. Waves 1 to 3 feet building to 2 to 4 feet
after midnight.
.TUESDAY...West winds 15 to 20 knots becoming northwest 5 to
10 knots. Partly cloudy in the morning becoming mostly cloudy.
Waves 1 to 3 feet.

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

$$

LHZ441-190915-
Port Austin to Harbor Beach MI-
953 PM EDT Sun Apr 18 2021

.REST OF TONIGHT...South winds 5 to 10 knots. Mostly clear. Waves
2 feet or less.
.MONDAY...Southwest winds 10 to 15 knots. Partly cloudy in the
morning becoming cloudy. A chance of rain. Waves 1 to 3 feet.
.MONDAY NIGHT...West winds 15 to 20 knots. Mostly clear. A chance
of rain in the evening. Waves 1 to 3 feet building to 2 to 4 feet
in the late evening and overnight.
.TUESDAY...West winds 15 to 20 knots becoming northwest 5 to
10 knots. Partly cloudy in the morning becoming mostly cloudy.
Waves 2 to 4 feet subsiding to 1 to 3 feet early in the
afternoon.

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

$$

LHZ442-190915-
Harbor Beach to Port Sanilac MI-
953 PM EDT Sun Apr 18 2021

.REST OF TONIGHT...South winds 5 to 10 knots. Mostly clear. Waves
2 feet or less.
.MONDAY...Southwest winds 10 to 15 knots. Partly cloudy with a
slight chance of rain in the morning, then mostly cloudy with a
chance of rain in the afternoon. Waves 2 feet or less.
.MONDAY NIGHT...Northwest winds 10 to 15 knots. Partly cloudy. A
chance of rain in the evening, then a chance of snow and rain
after midnight. Waves 1 to 3 feet.
.TUESDAY...West winds 15 to 20 knots becoming north 5 to
10 knots. Partly cloudy in the morning becoming mostly cloudy.
Waves 1 to 3 feet.

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

$$

LHZ443-190915-
Port Sanilac to Port Huron MI-
953 PM EDT Sun Apr 18 2021

.REST OF TONIGHT...Light and variable winds becoming southwest
5 to 10 knots after midnight. Partly cloudy. Waves 2 feet or
less.
.MONDAY...Southwest winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. Mostly sunny in the
morning, then cloudy with a chance of rain in the afternoon.
Waves 2 feet or less.
.MONDAY NIGHT...Northwest winds 10 to 15 knots. Mostly cloudy
with a chance of rain in the evening, then partly cloudy with a
chance of rain and snow after midnight. Waves 2 feet or less.
.TUESDAY...Northwest winds 10 to 15 knots becoming north 5 to
10 knots early in the afternoon. Partly cloudy in the morning
becoming mostly cloudy. Waves 2 feet or less.

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

$$

LEZ444-190915-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
953 PM EDT Sun Apr 18 2021

.REST OF TONIGHT...Light and variable winds becoming southwest
5 to 10 knots after midnight. Partly cloudy. Waves 2 feet or
less.
.MONDAY...Southwest winds 10 to 15 knots. Mostly sunny in the
morning, then mostly cloudy with a chance of rain in the
afternoon. Waves 2 feet or less.
.MONDAY NIGHT...Northwest winds 10 to 15 knots diminishing to
5 to 10 knots after midnight. Mostly cloudy with a chance of
rain. Waves 2 feet or less.
.TUESDAY...North winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon. Mostly cloudy. A chance of rain and snow
in the afternoon. Waves 2 feet or less.

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

The water temperature at Belle Isle is 49 degrees.

$$

AM

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a www.weather.gov/greatlakes



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