Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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048
FZUS53 KDTX 210748
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
348 AM EDT Mon Aug 21 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.

LHZ422-211515-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
348 AM EDT Mon Aug 21 2017

.TODAY...Southwest winds 5 to 10 knots. Partly cloudy. A chance
of showers and thunderstorms in the afternoon. Waves around
2 feet or less.
.TONIGHT...South winds 5 to 10 knots becoming southwest 10 to
15 knots early in the morning. Partly cloudy with a chance of
showers and thunderstorms in the evening...then mostly cloudy
with showers and thunderstorms likely after midnight. Waves
around 2 feet or less.
.TUESDAY...West winds 15 to 20 knots. Cloudy with showers and
thunderstorms likely until late afternoon...then partly cloudy
with a chance of showers and thunderstorms late in the afternoon.
Waves 1 to 3 feet.
.TUESDAY NIGHT...Northwest winds 15 to 20 knots becoming west
10 to 15 knots after midnight. Mostly clear. A chance of showers
and thunderstorms early in the evening. Waves around 2 feet or
less.

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

$$

LHZ421-211515-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
348 AM EDT Mon Aug 21 2017

.TODAY...Southwest winds 5 to 10 knots. Partly cloudy. A chance
of showers and thunderstorms in the afternoon. Waves around
2 feet or less.
.TONIGHT...South winds 5 to 10 knots increasing to 10 to 15 knots
early in the morning. Partly cloudy with a chance of showers and
thunderstorms in the evening...then mostly cloudy with showers
and thunderstorms likely after midnight. Waves around 2 feet or
less.
.TUESDAY...West winds 15 to 20 knots. Showers with thunderstorms
likely until late afternoon...then partly cloudy late in the
afternoon. Waves 1 to 3 feet.
.TUESDAY NIGHT...West winds 15 to 20 knots. Mostly clear. Waves
1 to 3 feet building to 2 to 4 feet in the late evening and
overnight.

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

$$

LHZ441-211515-
Port Austin to Harbor Beach MI-
348 AM EDT Mon Aug 21 2017

.TODAY...South winds 5 to 10 knots. Partly cloudy. A chance of
showers and thunderstorms in the afternoon. Waves around 2 feet
or less.
.TONIGHT...South winds 5 to 10 knots increasing to 10 to 15 knots
after midnight. Mostly cloudy becoming partly cloudy late in the
evening becoming mostly cloudy. A chance of showers and
thunderstorms in the evening...then showers and thunderstorms
likely after midnight. Waves around 2 feet or less.
.TUESDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and early afternoon...then veering
to the northwest late in the afternoon. Showers with
thunderstorms likely until late afternoon...then partly cloudy
with a chance of showers and thunderstorms late in the afternoon.
Waves 1 to 3 feet.
.TUESDAY NIGHT...Northwest winds 15 to 20 knots. Mostly clear. A
chance of showers and thunderstorms early in the evening. Waves 1 to
3 feet building to 3 to 5 feet in the late evening and overnight.
Waves occasionally around 7 feet. A Small Craft Advisory may be
needed.

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

$$

LHZ442-211515-
Harbor Beach to Port Sanilac MI-
348 AM EDT Mon Aug 21 2017

.TODAY...South winds 5 to 10 knots. Partly cloudy. A chance of
showers and thunderstorms in the afternoon. Waves around 2 feet
or less.
.TONIGHT...South winds 5 to 10 knots increasing to 10 to 15 knots
after midnight. Partly cloudy early in the evening becoming
mostly cloudy. A chance of showers and thunderstorms in the
evening...then showers and thunderstorms likely after midnight.
Waves around 2 feet or less.
.TUESDAY...Southwest winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and early afternoon...then veering
to the northwest late in the afternoon. Becoming partly cloudy
late in the afternoon. Showers with thunderstorms likely until
late afternoon...then a chance of showers and thunderstorms late
in the afternoon. Waves 1 to 3 feet.
.TUESDAY NIGHT...Northwest winds 10 to 15 knots increasing to
15 to 20 knots late in the evening...then becoming west 10 to
15 knots after midnight. Mostly clear. A chance of showers and
thunderstorms early in the evening. Waves 1 to 3 feet building to
2 to 4 feet after midnight.

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

$$

LHZ443-211515-
Port Sanilac to Port Huron MI-
348 AM EDT Mon Aug 21 2017

.TODAY...South winds 5 to 10 knots. Partly cloudy. A chance of
showers and thunderstorms in the afternoon. Waves around 2 feet
or less.
.TONIGHT...South winds 5 to 10 knots increasing to 10 to 15 knots
after midnight. Partly cloudy in the evening becoming mostly
cloudy. A chance of showers and thunderstorms. Waves around
2 feet or less.
.TUESDAY...South winds 10 to 15 knots becoming west 15 to
20 knots in the late morning and afternoon. Mostly cloudy with
showers and thunderstorms likely. Waves around 2 feet or less.
.TUESDAY NIGHT...Northwest winds 10 to 15 knots. Mostly clear.
Showers and thunderstorms likely early in the evening. Waves 1 to
3 feet.

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

$$

LEZ444-211515-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
348 AM EDT Mon Aug 21 2017

.TODAY...Light and variable winds becoming south 5 to 10 knots in
the afternoon. Partly cloudy. A slight chance of showers and
thunderstorms early in the afternoon. A chance of showers and
thunderstorms late in the afternoon. Waves around 2 feet or less.
.TONIGHT...South winds 5 to 10 knots becoming southwest 10 to
15 knots early in the morning. Partly cloudy until early morning
becoming mostly cloudy. A chance of showers and thunderstorms.
Waves around 2 feet or less.
.TUESDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots in the late morning and afternoon. Mostly cloudy with
showers and thunderstorms likely. Waves 1 to 3 feet.
.TUESDAY NIGHT...Northwest winds 10 to 15 knots diminishing to
5 to 10 knots early in the morning. Mostly clear. Showers and
thunderstorms likely early in the evening. Waves around 2 feet or
less.

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

The water temperature at Belle Isle is 73.9 degrees.

$$

SP

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a www.weather.gov/greatlakes



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