Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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FZUS53 KDTX 230138
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
938 PM EDT Sun Oct 22 2017

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.

LHZ422-230915-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
938 PM EDT Sun Oct 22 2017

.REST OF TONIGHT...South winds 10 to 15 knots. Partly cloudy this
evening becoming mostly cloudy. A chance of light showers in the
late evening and early morning...then showers likely early in the
morning. Waves 1 to 3 feet.
.MONDAY...South winds 5 to 10 knots backing to the east late in
the afternoon. Rain. Rain may be heavy at times late in the
afternoon. Waves around 2 feet or less.
.MONDAY NIGHT...East winds 10 to 15 knots veering to the southwest
late in the evening...then becoming west 20 to 25 knots after
midnight. Rain early in the evening...then showers in the late
evening and early morning. Showers likely early in the morning.
Precipitation may be heavy at times until early morning. Waves around
2 feet or less building to 2 to 4 feet after midnight. A Small Craft
Advisory may be needed.
.TUESDAY...Southwest winds 15 to 20 knots diminishing to 10 to
15 knots late in the morning...then increasing to 15 to 20 knots
in the afternoon. Cloudy. Showers likely until late afternoon...
then a chance of light showers late in the afternoon. Waves 1 to
3 feet.

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

$$

LHZ421-230915-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
938 PM EDT Sun Oct 22 2017

.REST OF TONIGHT...South winds 15 to 20 knots. Partly cloudy this
evening becoming mostly cloudy. A chance of light showers in the
late evening and early morning...then showers likely early in the
morning. Waves 1 to 3 feet.
.MONDAY...Southwest winds 10 to 15 knots diminishing to 5 to
10 knots late in the morning...then becoming south 10 to 15 knots
early in the afternoon backing to the east late in the afternoon.
Rain. Rain may be heavy at times late in the afternoon. Waves
around 2 feet or less.
.MONDAY NIGHT...East winds 15 to 20 knots veering to the southwest
late in the evening...then becoming west 20 to 25 knots after
midnight. Rain early in the evening...then showers in the late
evening and early morning. Light showers likely early in the morning.
Precipitation may be heavy at times until early morning. Waves 3 to 5
feet. Waves occasionally around 7 feet. A Small Craft Advisory may be
needed.
.TUESDAY...Southwest winds 15 to 20 knots. Mostly cloudy. Light
showers likely until late afternoon...then a chance of light
showers late in the afternoon. Waves 3 to 5 feet. Waves
occasionally around 7 feet.

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

$$

LHZ441-230915-
Port Austin to Harbor Beach MI-
938 PM EDT Sun Oct 22 2017

.REST OF TONIGHT...South winds 15 to 20 knots. Partly cloudy with
a slight chance of light showers...then mostly cloudy with a
chance of light showers after midnight. Waves 2 to 4 feet.
.MONDAY...Southeast winds 10 to 15 knots. A chance of rain early
in the morning...then rain in the late morning and afternoon.
Rain may be heavy at times late in the afternoon. Waves 2 to
4 feet subsiding to 1 to 3 feet late in the morning...then
building to 2 to 4 feet in the afternoon.
.MONDAY NIGHT...East winds 15 to 20 knots veering to the south late
in the evening...then becoming west 20 to 25 knots with gusts to 30
knots after midnight becoming southwest to 30 knots early in the
morning. Rain early in the evening...then showers in the late evening
and early morning. Light showers likely early in the morning.
Precipitation may be heavy at times until early morning. Waves 3 to 5
feet. Waves occasionally around 7 feet. A Small Craft Advisory may be
needed.
.TUESDAY...Southwest winds 20 to 25 knots becoming south 15 to
20 knots late in the morning...then becoming southwest 20 to
25 knots in the afternoon. Mostly cloudy with light showers
likely. Waves 3 to 5 feet. Waves occasionally around 7 feet.

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

$$

LHZ442-230915-
Harbor Beach to Port Sanilac MI-
938 PM EDT Sun Oct 22 2017

.REST OF TONIGHT...South winds 15 to 20 knots. Partly cloudy. A
slight chance of light showers in the late evening and early
morning...then a chance of light showers early in the morning.
Waves 2 to 4 feet.
.MONDAY...South winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and early afternoon...then becoming southeast
10 to 15 knots late in the afternoon. A chance of rain early in
the morning...then rain in the late morning and afternoon. Rain
may be heavy at times late in the afternoon. Waves 2 to 4 feet.
.MONDAY NIGHT...South winds 15 to 20 knots becoming southwest 20 to
25 knots with gusts to 30 knots after midnight. Rain early in the
evening...then showers in the late evening and overnight. Rain may be
heavy at times early in the evening. Waves 3 to 5 feet. Waves
occasionally around 7 feet. A Small Craft Advisory may be needed.
.TUESDAY...Southwest winds 20 to 25 knots. Mostly cloudy with
light showers likely. Waves 2 to 4 feet.

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

$$

LHZ443-230915-
Port Sanilac to Port Huron MI-
938 PM EDT Sun Oct 22 2017

.REST OF TONIGHT...South winds 10 to 15 knots increasing to 15 to
20 knots after midnight. Partly cloudy. A slight chance of light
showers early in the morning. Waves 1 to 3 feet building to 2 to
4 feet early in the morning.
.MONDAY...South winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and early afternoon...then becoming southeast
10 to 15 knots late in the afternoon. A chance of rain early in
the morning...then rain in the late morning and afternoon. Rain
may be heavy at times late in the afternoon. Waves 1 to 3 feet
building to 2 to 4 feet in the afternoon.
.MONDAY NIGHT...South winds 15 to 20 knots veering to the southwest
after midnight...then increasing to 20 to 25 knots early in the
morning. Rain early in the evening...then showers in the late evening
and overnight. Rain may be heavy at times early in the evening. Waves
3 to 5 feet subsiding to 2 to 4 feet after midnight. Waves
occasionally around 7 feet. A Small Craft Advisory may be needed.
.TUESDAY...Southwest winds 15 to 20 knots. Mostly cloudy. Light
showers likely until late afternoon...then a chance of light
showers late in the afternoon. Waves 1 to 3 feet building to 2 to
4 feet in the late morning and afternoon.

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

$$

LEZ444-230915-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
938 PM EDT Sun Oct 22 2017

.REST OF TONIGHT...South winds 10 to 15 knots. Partly cloudy. A
slight chance of light showers early in the morning. Waves 1 to
3 feet.
.MONDAY...South winds 10 to 15 knots. A chance of light rain
early in the morning...then light rain in the late morning and
afternoon. Rain may be heavy at times late in the afternoon.
Waves 1 to 3 feet.
.MONDAY NIGHT...Southwest winds 15 to 20 knots. Rain early in the
evening...then showers in the late evening and overnight. Rain
may be heavy at times early in the evening. Waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight.
.TUESDAY...Southwest winds 15 to 20 knots increasing to 20 to 25
knots late in the afternoon. Mostly cloudy. Light showers likely
until late afternoon...then a chance of light showers late in the
afternoon. Waves 1 to 3 feet. A Small Craft Advisory may be needed.

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

The water temperature at Belle Isle is 59.6 degrees.

$$

MANN

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a www.weather.gov/greatlakes



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