Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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FZUS53 KDTX 230748
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
348 AM EDT Mon Oct 23 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.

LHZ422-231515-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
348 AM EDT Mon Oct 23 2017

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
EVENING...

.TODAY...Southeast winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. Light rain. Rain may be heavy at
times late in the afternoon. Waves around 2 feet or less.
.TONIGHT...Southeast winds 15 to 20 knots becoming south 20 to
25 knots after midnight...then becoming southwest gales to
35 knot gales early in the morning. Rain. Rain may be heavy at
times early in the evening. Waves 1 to 3 feet building to 4 to
6 feet. Waves occasionally around 8 feet.
.TUESDAY...Southwest gales to 35 knot gales becoming south to
30 knots in the late morning and afternoon. Rain likely early in
the morning...then light showers in the late morning and
afternoon. Waves 4 to 6 feet. Waves occasionally around 8 feet.
.TUESDAY NIGHT...South winds to 30 knots becoming southwest 20 to
25 knots in the late evening and overnight. Gusts to 35 knot
gales in the evening. Light showers. Waves 3 to 5 feet. Waves
occasionally around 7 feet.

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

$$

LHZ421-231515-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
348 AM EDT Mon Oct 23 2017

...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
EVENING...

.TODAY...Southeast winds 5 to 10 knots backing to the east in the
late morning and early afternoon...then becoming southeast 15 to
20 knots late in the afternoon. Light rain. Rain may be heavy at
times late in the afternoon. Waves around 2 feet or less.
.TONIGHT...Southeast winds 15 to 20 knots increasing to 20 to
25 knots with gusts to 30 knots late in the evening...then
becoming south to 30 knots after midnight increasing to 35 knot
gales early in the morning. Rain. Rain may be heavy at times
early in the evening. Waves 4 to 6 feet building to 5 to 7 feet
early in the morning. Waves occasionally around 10 feet.
.TUESDAY...South gales to 35 knot gales diminishing to 30 knots
in the afternoon. Cloudy with light showers likely. Waves 5 to
7 feet. Waves occasionally around 10 feet.
.TUESDAY NIGHT...South winds to 30 knots becoming southwest 20 to
25 knots after midnight. Gusts to 35 knot gales in the evening.
Cloudy with light showers likely. Waves 4 to 6 feet. Waves
occasionally around 8 feet.

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

$$

LHZ441-231515-
Port Austin to Harbor Beach MI-
348 AM EDT Mon Oct 23 2017

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH TUESDAY
EVENING...

.TODAY...South winds 10 to 15 knots diminishing to 5 to 10 knots
late in the morning...then becoming southeast 10 to 15 knots
early in the afternoon increasing to 15 to 20 knots late in the
afternoon. A chance of light rain early in the morning...then
rain in the late morning and afternoon. Waves 1 to 3 feet
building to 3 to 5 feet late in the afternoon. Waves occasionally
around 7 feet.
.TONIGHT...Southeast winds 20 to 25 knots with gusts to 30 knots
becoming south gales to 35 knot gales with gusts to 40 knot
gales. Rain. Waves 6 to 9 feet. Waves occasionally around
12 feet.
.TUESDAY...South winds to 30 knots with gusts to 35 knot gales.
Mostly cloudy. A chance of rain early in the morning...then a
chance of light showers late in the morning. Light showers likely
in the afternoon. Waves 5 to 7 feet. Waves occasionally around
10 feet.
.TUESDAY NIGHT...South winds to 30 knots becoming southwest 20 to
25 knots after midnight. Gusts to 35 knot gales in the evening.
Cloudy. Light showers likely early in the evening...then a chance
of light showers late in the evening. Light showers likely after
midnight. Waves 5 to 7 feet. Waves occasionally around 10 feet.

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

$$

LHZ442-231515-
Harbor Beach to Port Sanilac MI-
348 AM EDT Mon Oct 23 2017

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH TUESDAY
EVENING...

.TODAY...South winds 10 to 15 knots becoming southeast 15 to
20 knots late in the afternoon. A slight chance of light rain
early in the morning...then a chance of light rain late in the
morning. Rain in the afternoon. Waves 1 to 3 feet building to
3 to 5 feet late in the afternoon. Waves occasionally around
7 feet.
.TONIGHT...Southeast winds 20 to 25 knots becoming south gales to
35 knot gales. Rain. Waves 6 to 9 feet. Waves occasionally around
12 feet.
.TUESDAY...South winds to 30 knots with gusts to 35 knot gales.
Mostly cloudy. A chance of rain early in the morning...then a
chance of light showers late in the morning. Light showers likely
in the afternoon. Waves 6 to 9 feet. Waves occasionally around
12 feet.
.TUESDAY NIGHT...South winds to 30 knots becoming southwest 20 to
25 knots after midnight. Gusts to 35 knot gale in the evening.
Mostly cloudy. Light showers likely early in the evening...then a
chance of light showers late in the evening. Light showers likely
after midnight. Waves 5 to 7 feet. Waves occasionally around 10
feet.

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

$$

LHZ443-231515-
Port Sanilac to Port Huron MI-
348 AM EDT Mon Oct 23 2017

...GALE WARNING IN EFFECT FROM THIS EVENING THROUGH TUESDAY
EVENING...

.TODAY...South winds 10 to 15 knots becoming southeast 15 to
20 knots late in the afternoon. A slight chance of light rain
early in the morning...then a chance of light rain late in the
morning. Rain in the afternoon. Waves 1 to 3 feet building to
2 to 4 feet late in the afternoon.
.TONIGHT...Southeast winds 20 to 25 knots becoming south to
30 knots after midnight. Gusts to 35 knot gales. Rain. Waves 5 to
7 feet. Waves occasionally around 10 feet.
.TUESDAY...South winds to 30 knots with gusts to 35 knot gales.
Mostly cloudy. A chance of light rain early in the morning...then
a chance of light showers in the late morning and afternoon.
Waves 5 to 7 feet. Waves occasionally around 10 feet.
.TUESDAY NIGHT...South winds to 30 knots becoming southwest 20 to
25 knots after midnight. Gusts to 35 knot gales in the evening.
Mostly cloudy. Light showers likely...mainly after midnight. Waves
4 to 6 feet. Waves occasionally around 8 feet.

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

$$

LEZ444-231515-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
348 AM EDT Mon Oct 23 2017

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
TUESDAY MORNING...
...GALE WATCH IN EFFECT FROM TUESDAY AFTERNOON THROUGH LATE
TUESDAY NIGHT...

.TODAY...Southeast winds 10 to 15 knots increasing to 15 to
20 knots late in the afternoon. A slight chance of light rain
early in the morning...then a chance of light rain late in the
morning. Rain in the afternoon. Waves 1 to 3 feet building to
2 to 4 feet late in the afternoon.
.TONIGHT...South winds 15 to 20 knots becoming southwest 20 to
25 knots with gusts to 30 knots in the late evening and
overnight. Rain. Waves 2 to 4 feet.
.TUESDAY...Southwest winds 20 to 25 knots with gusts to 30 knots
increasing to 30 knots with gusts to 35 knot gales in the afternoon.
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. A Gale Warning may be needed.
.TUESDAY NIGHT...Southwest winds to 30 knots with gusts to
35 knot gales diminishing to 20 to 25 knots with gusts to
30 knots after midnight. Cloudy. Light showers likely until early
morning...then a chance of light showers early in the morning.
Waves 3 to 5 feet. Waves occasionally around 7 feet.

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

The water temperature at Belle Isle is 59.9 degrees.

$$

SF

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