Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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540
FZUS53 KDTX 220141
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
936 PM 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.

LHZ422-220900-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
936 PM EDT Mon Aug 21 2017

.REST OF TONIGHT...South winds 10 to 15 knots becoming southwest
5 to 10 knots after midnight...then increasing to 10 to 15 knots
early in the morning. Partly cloudy this evening. A chance of
showers and thunderstorms...then showers with thunderstorms
likely after midnight. Waves around 2 feet or less.
.TUESDAY...West winds 10 to 15 knots. 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 becoming west
10 to 15 knots after midnight...then increasing to 15 to 20 knots
early in the morning. Mostly clear. A chance of showers and
thunderstorms early in the evening. Waves 1 to 3 feet.
.WEDNESDAY...West winds 15 to 20 knots becoming northwest 10 to
15 knots in the late morning and afternoon. Mostly sunny in the
morning becoming partly cloudy. Waves 1 to 3 feet.

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

$$

LHZ421-220900-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
936 PM EDT Mon Aug 21 2017

.REST OF TONIGHT...South winds 5 to 10 knots becoming southwest
10 to 15 knots after midnight. Partly cloudy this evening. A
chance of showers and thunderstorms...then showers with
thunderstorms likely after midnight. Waves around 2 feet or less.
.TUESDAY...Southwest winds 10 to 15 knots becoming west 15 to
20 knots in the late morning and early afternoon...then becoming
northwest 10 to 15 knots late in the afternoon. Showers with
thunderstorms likely until late afternoon...then partly cloudy
with a slight chance of showers and thunderstorms late in the
afternoon. Waves 1 to 3 feet.
.TUESDAY NIGHT...West winds 15 to 20 knots. Mostly clear. A
slight chance of showers and thunderstorms early in the evening.
Waves 2 to 4 feet.
.WEDNESDAY...Northwest winds 15 to 20 knots diminishing to 10 to
15 knots in the afternoon. Mostly sunny in the morning becoming
partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet in the
afternoon.

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

$$

LHZ441-220900-
Port Austin to Harbor Beach MI-
936 PM EDT Mon Aug 21 2017

.REST OF TONIGHT...South winds 10 to 15 knots. Partly cloudy this
evening. A chance of showers and thunderstorms...then showers
with 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 becoming
northwest 10 to 15 knots 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 increasing to 20 to
25 knots late in the evening...then becoming west 15 to 20 knots
after midnight. Mostly clear. A chance of showers and thunderstorms
early in the evening. Waves 3 to 5 feet. Waves occasionally around 7
feet. A Small Craft Advisory may be needed.
.WEDNESDAY...Northwest winds 15 to 20 knots diminishing to 10 to
15 knots late in the afternoon. Mostly sunny in the morning
becoming partly cloudy. Waves 2 to 4 feet.

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

$$

LHZ442-220900-
Harbor Beach to Port Sanilac MI-
936 PM EDT Mon Aug 21 2017

.REST OF TONIGHT...South winds 10 to 15 knots. Partly cloudy with
a chance of showers and thunderstorms in the late evening and
early morning...then showers with thunderstorms likely early in
the morning. 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 becoming
northwest 10 to 15 knots late in the afternoon. Showers with
thunderstorms likely. Waves 1 to 3 feet.
.TUESDAY NIGHT...Northwest winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and early morning...then
becoming west 10 to 15 knots early in the morning. Mostly clear.
Light showers and thunderstorms likely early in the evening.
Waves 1 to 3 feet building to 2 to 4 feet in the late evening and
early morning...then subsiding to 1 to 3 feet early in the
morning.
.WEDNESDAY...West winds 10 to 15 knots becoming northwest 15 to
20 knots late in the morning...then diminishing to 10 to 15 knots
in the afternoon. Mostly sunny in the morning becoming partly
cloudy. Waves 1 to 3 feet.

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

$$

LHZ443-220900-
Port Sanilac to Port Huron MI-
936 PM EDT Mon Aug 21 2017

.REST OF TONIGHT...South winds 5 to 10 knots increasing to 10 to
15 knots after midnight. Partly cloudy with a chance of showers
and thunderstorms in the late evening and early morning...then
mostly cloudy with showers and thunderstorms likely early in the
morning. 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 becoming
west 10 to 15 knots late in the afternoon. Showers with
thunderstorms likely. Waves 1 to 3 feet.
.TUESDAY NIGHT...West winds 10 to 15 knots. Mostly clear. Showers
and thunderstorms likely early in the evening. Waves 1 to 3 feet.
.WEDNESDAY...Northwest winds 10 to 15 knots. Mostly sunny in the
morning becoming partly cloudy. Waves 1 to 3 feet.

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

$$

LEZ444-220900-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
936 PM EDT Mon Aug 21 2017

.REST OF TONIGHT...Southwest winds 10 to 15 knots. Partly cloudy
with a chance of showers and thunderstorms in the late evening
and early morning...then mostly cloudy with showers and
thunderstorms likely early in the morning. Waves around 2 feet or
less.
.TUESDAY...Southwest winds 10 to 15 knots. 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. Partly cloudy early in the
evening then clearing. Showers and thunderstorms likely early in
the evening. Waves around 2 feet or less.
.WEDNESDAY...West winds 5 to 10 knots becoming northwest 10 to
15 knots in the afternoon. Mostly sunny until late afternoon
becoming partly cloudy. Waves around 2 feet or less.

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

The water temperature at Belle Isle is 74.5 degrees.

$$

DG

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



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