520
FZUS53 KDTX 291349
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
949 AM EDT Fri Aug 29 2025

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.

LHZ422-292200-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
949 AM EDT Fri Aug 29 2025

.REST OF TODAY...North winds 10 to 15 knots becoming northeast
5 to 10 knots late in the afternoon. Mostly sunny late in the
morning becoming partly cloudy. Waves 2 feet or less.
.TONIGHT...East winds 10 to 15 knots diminishing to 5 to 10 knots
in the late evening and early morning, then veering to the west
after midnight. Clear. Waves 2 feet or less.
.SATURDAY...West winds 5 to 10 knots backing to the south early
in the afternoon. Sunny. Waves 2 feet or less.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots veering to the
south after midnight. Mostly clear. Waves 2 feet or less.

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

$$

LHZ421-292200-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
949 AM EDT Fri Aug 29 2025

.REST OF TODAY...North winds 10 to 15 knots. Partly cloudy late
in the morning becoming mostly sunny. A slight chance of
waterspouts. A chance of sprinkles. Waves 2 to 4 feet.
.TONIGHT...Northeast winds 5 to 10 knots backing to the northwest
after midnight. Clear. A slight chance of waterspouts early in
the evening. A chance of sprinkles early in the evening. Waves
2 feet or less.
.SATURDAY...West winds 5 to 10 knots backing to the south early
in the afternoon. Mostly sunny. Waves 2 feet or less.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots veering to the
southwest after midnight. Mostly clear. Waves 2 feet or less.

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

$$

LHZ441-292200-
Port Austin to Harbor Beach MI-
949 AM EDT Fri Aug 29 2025

.REST OF TODAY...North winds 10 to 15 knots. Partly cloudy. A
slight chance of waterspouts. A chance of sprinkles. Waves 2 to
4 feet.
.TONIGHT...North winds 10 to 15 knots becoming northwest 5 to
10 knots in the late evening and overnight. Clear. A slight
chance of waterspouts early in the evening. A chance of sprinkles
early in the evening. Waves 1 to 3 feet.
.SATURDAY...Northwest winds 5 to 10 knots. Mostly sunny. Waves
2 feet or less.
.SATURDAY NIGHT...Light and variable winds. Mostly clear. Waves
2 feet or less.

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

$$

LHZ442-292200-
Harbor Beach to Port Sanilac MI-
949 AM EDT Fri Aug 29 2025

.REST OF TODAY...North winds 10 to 15 knots. Partly cloudy. A
slight chance of waterspouts. A chance of sprinkles. Waves 2 to
4 feet.
.TONIGHT...North winds 10 to 15 knots becoming northwest 5 to
10 knots in the late evening and overnight. Clear. A slight
chance of waterspouts early in the evening. A chance of sprinkles
early in the evening. Waves 1 to 3 feet.
.SATURDAY...Northwest winds 5 to 10 knots veering to the north
early in the afternoon. Mostly sunny. Waves 2 feet or less.
.SATURDAY NIGHT...East winds 5 to 10 knots early in the evening
becoming light and variable. Mostly clear. Waves 2 feet or less.

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

$$

LHZ443-292200-
Port Sanilac to Port Huron MI-
949 AM EDT Fri Aug 29 2025

.REST OF TODAY...North winds 10 to 15 knots. Partly cloudy. A
slight chance of waterspouts. A chance of sprinkles. Waves 2 to
4 feet.
.TONIGHT...North winds 10 to 15 knots becoming northwest 5 to
10 knots in the late evening and overnight. Mostly clear. A
slight chance of waterspouts early in the evening. A chance of
sprinkles early in the evening. Waves 1 to 3 feet.
.SATURDAY...West winds 5 to 10 knots veering to the north early
in the afternoon. Mostly sunny. Waves 2 feet or less.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots veering to the
southeast in the late evening and early morning, then becoming
light and variable after midnight. Mostly clear. Waves 2 feet or
less.

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

$$

LEZ444-292200-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
949 AM EDT Fri Aug 29 2025

.REST OF TODAY...North winds 5 to 10 knots. Mostly sunny late in
the morning becoming partly cloudy. Waves 2 feet or less.
.TONIGHT...Northeast winds 5 to 10 knots. Partly cloudy early in
the evening then clearing. Waves 2 feet or less.
.SATURDAY...Light and variable winds becoming southeast 5 to
10 knots early in the afternoon. Sunny. Waves 2 feet or less.
.SATURDAY NIGHT...Southeast winds 5 to 10 knots until early
morning becoming light and variable. Mostly clear. Waves 2 feet
or less.

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

The water temperature at Belle Isle is 68 degrees.

$$

MV

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