Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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FZUS53 KDTX 130800
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
400 AM EDT Fri Apr 13 2018

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.

LHZ422-131515-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
400 AM EDT Fri Apr 13 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
SATURDAY MORNING...
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY
AFTERNOON...

.TODAY...Northeast winds 10 to 15 knots increasing to 20 to
25 knots in the afternoon. Light showers likely in the morning...
then light showers and a chance of thunderstorms in the
afternoon. Waves 1 to 3 feet building to 2 to 4 feet late in the
afternoon.
.TONIGHT...Northeast winds 20 to 25 knots increasing to 30 knots
early in the morning. Rain showers and a chance of thunderstorms
until early morning...then showers, a chance of thunderstorms and
freezing rain early in the morning. Waves 3 to 5 feet. Waves
occasionally around 7 feet.
.SATURDAY...Northeast gales to 35 knot gales with gusts to 40 knot
gales. Rain showers and a chance of sleet in the morning. Freezing
rain, snow showers and a chance of thunderstorms. Light sleet likely
in the afternoon. Waves 4 to 6 feet. Waves occasionally around 8
feet. A Gale Warning may be needed.
.SATURDAY NIGHT...Northeast gales to 35 knot gales becoming east
to 30 knots in the late evening and overnight. A chance of light
sleet in the evening. Freezing rain and a chance of
thunderstorms. Light sleet likely and a chance of light showers
after midnight. Waves 4 to 6 feet. Waves occasionally around
8 feet.

Gales will be possible beyond the forecast period. Please refer to
the Open Lakes Forecast for more information.

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

$$

LHZ421-131515-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
400 AM EDT Fri Apr 13 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
SATURDAY MORNING...
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY
AFTERNOON...

.TODAY...Northeast winds 10 to 15 knots increasing to 20 to
25 knots. Light showers in the morning...then light showers and a
chance of thunderstorms in the afternoon. Waves 1 to 3 feet
building to 3 to 5 feet in the afternoon. Waves occasionally
around 7 feet.
.TONIGHT...Northeast winds 20 to 25 knots increasing to 30 knots
early in the morning. Rain showers and a chance of thunderstorms
until early morning...then showers, a chance of thunderstorms and
freezing rain early in the morning. Waves 5 to 7 feet building to
8 to 12 feet after midnight. Waves occasionally around 15 feet.
.SATURDAY...Northeast gales to 35 knot gales with gusts to 40 knot
gales. Rain showers early in the morning. Freezing rain, snow showers
and a chance of thunderstorms. Waves 10 to 14 feet. Waves
occasionally around 18 feet. A Gale Warning may be needed.
.SATURDAY NIGHT...Northeast gales to 35 knot gales becoming east
to 30 knots in the late evening and early morning...then
increasing to 35 knot gales early in the morning. Cloudy. A
chance of light sleet in the evening. Freezing rain likely, a
chance of thunderstorms, light rain and snow showers. Light sleet
likely after midnight. Waves 10 to 14 feet. Waves occasionally
around 18 feet.

Gales will be possible beyond the forecast period. Please refer to
the Open Lakes Forecast for more information.

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

$$

LHZ441-131515-
Port Austin to Harbor Beach MI-
400 AM EDT Fri Apr 13 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON EDT TODAY THROUGH
SATURDAY MORNING...
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY
AFTERNOON...

.TODAY...Northeast winds 10 to 15 knots becoming east 5 to
10 knots late in the morning...then becoming northeast 15 to
20 knots in the afternoon. Light showers likely in the morning...
then light showers and a chance of thunderstorms in the
afternoon. Waves 1 to 3 feet building to 2 to 4 feet in the
afternoon.
.TONIGHT...Northeast winds 20 to 25 knots. Rain showers and a
chance of thunderstorms until early morning...then showers, a
chance of thunderstorms and freezing rain early in the morning.
Waves 5 to 7 feet building to 8 to 12 feet after midnight. Waves
occasionally around 15 feet.
.SATURDAY...Northeast gales to 35 knot gales diminishing to 30 knots
late in the afternoon. Gusts to 40 knot gales. Rain showers early in
the morning. Freezing rain, snow showers and a chance of
thunderstorms. Snow may be heavy at times early in the morning. Waves
10 to 14 feet. Waves occasionally around 18 feet. A Gale Warning may
be needed.
.SATURDAY NIGHT...East winds to 30 knots with gusts to 35 knot
gales. Cloudy. A chance of light snow showers in the evening.
Light freezing rain likely, a chance of thunderstorms and light
sleet. Waves 10 to 14 feet. Waves occasionally around 18 feet.

Gales will be possible beyond the forecast period. Please refer to
the Open Lakes Forecast for more information.

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

$$

LHZ442-131515-
Harbor Beach to Port Sanilac MI-
400 AM EDT Fri Apr 13 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
SATURDAY MORNING...
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY
AFTERNOON...

.TODAY...Northeast winds 5 to 10 knots increasing to 15 to
20 knots. Light showers likely in the morning...then light
showers and a chance of thunderstorms in the afternoon. Waves
1 to 3 feet.
.TONIGHT...Northeast winds 15 to 20 knots increasing to 20 to
25 knots early in the morning. Light showers and a chance of
thunderstorms until early morning...then showers, a chance of
thunderstorms and freezing rain early in the morning. Waves 4 to
6 feet building to 6 to 9 feet after midnight. Waves occasionally
around 12 feet.
.SATURDAY...Northeast gales to 35 knot gales diminishing to 30 knots
in the afternoon. Rain showers and a chance of light snow showers in
the morning. Freezing rain, light sleet and a chance of
thunderstorms. Light snow showers in the afternoon. Precipitation may
be heavy at times late in the morning. Waves 8 to 12 feet. Waves
occasionally around 15 feet. A Gale Warning may be needed.
.SATURDAY NIGHT...Northeast winds to 30 knots becoming east 20 to
25 knots in the late evening and overnight. Freezing rain, a
chance of thunderstorms and light sleet. Waves 6 to 9 feet. Waves
occasionally around 12 feet.

Gales will be possible beyond the forecast period. Please refer to
the Open Lakes Forecast for more information.

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

$$

LHZ443-131515-
Port Sanilac to Port Huron MI-
400 AM EDT Fri Apr 13 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH
SATURDAY MORNING...
...GALE WATCH IN EFFECT FROM SATURDAY MORNING THROUGH SUNDAY
AFTERNOON...

.TODAY...Northeast winds 10 to 15 knots becoming north 15 to
20 knots late in the afternoon. Cloudy. Light showers likely in
the morning...then light showers likely and a chance of
thunderstorms in the afternoon. Waves 1 to 3 feet.
.TONIGHT...Northeast winds 15 to 20 knots. Light showers and a
chance of thunderstorms. Waves 1 to 3 feet building to 4 to
6 feet in the late evening and overnight. Waves occasionally
around 8 feet.
.SATURDAY...Northeast winds 20 to 25 knots increasing to 30 knots
in the late morning and early afternoon...then diminishing to
20 to 25 knots late in the afternoon. Gusts to 35 knot gales. Rain
showers, freezing rain and a chance of thunderstorms. Light sleet
likely early in the afternoon...then a chance of light sleet late
in the afternoon. Waves 6 to 9 feet. Waves occasionally around 12
feet.
.SATURDAY NIGHT...East winds 20 to 25 knots. Freezing rain,
showers and a chance of thunderstorms. Waves 5 to 7 feet. Waves
occasionally around 10 feet.

Gales will be possible beyond the forecast period. Please refer to
the Open Lakes Forecast for more information.

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

$$

LEZ444-131515-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
400 AM EDT Fri Apr 13 2018

.TODAY...East winds 5 to 10 knots increasing to 10 to 15 knots
late in the afternoon. Mostly cloudy. A slight chance of light
showers in the morning...then a chance of showers and
thunderstorms in the afternoon. Waves around 2 feet or less.
.TONIGHT...East winds 5 to 10 knots increasing to 10 to 15 knots
after midnight. Light showers and a chance of thunderstorms.
Waves 1 to 3 feet.
.SATURDAY...Northeast winds 10 to 15 knots increasing to 20 to 25
knots. Rain showers and a chance of thunderstorms. Waves 3 to 5 feet.
Waves occasionally around 7 feet. A Small Craft Advisory may be
needed.
.SATURDAY NIGHT...Northeast winds 20 to 25 knots. Rain showers
and a chance of thunderstorms. Waves 4 to 6 feet. Waves
occasionally around 8 feet.

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

The water temperature at Belle Isle is 41.3 degrees.

$$

SC

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



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