530
FZUS53 KDTX 291902
NSHDTX

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

LHZ422-300315-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
302 PM EDT Fri Aug 29 2025

.TONIGHT...East winds 5 to 10 knots until early morning becoming
light and variable. Clear. Waves 2 feet or less.
.SATURDAY...West winds 5 to 10 knots backing to the southeast
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.
.SUNDAY...Light and variable winds becoming east 5 to 10 knots
early in the afternoon. Sunny. Waves 2 feet or less.

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

$$

LHZ421-300315-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
302 PM EDT Fri Aug 29 2025

.TONIGHT...Northeast winds 5 to 10 knots in the evening becoming
light and variable, then becoming northwest 5 to 10 knots early
in the morning. Clear. A slight chance of waterspouts in the
evening. A chance of sprinkles 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.
.SUNDAY...Light and variable winds becoming east 5 to 10 knots
early in the afternoon. Sunny. Waves 2 feet or less.

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

$$

LHZ441-300315-
Port Austin to Harbor Beach MI-
302 PM EDT Fri Aug 29 2025

.TONIGHT...North winds 5 to 10 knots in the evening becoming
light and variable, then becoming northwest 5 to 10 knots early
in the morning. Clear. A slight chance of waterspouts in the
evening. A chance of sprinkles 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...Light and variable winds. Mostly clear. Waves
2 feet or less.
.SUNDAY...Light and variable winds. Sunny. Waves 2 feet or less.

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

$$

LHZ442-300315-
Harbor Beach to Port Sanilac MI-
302 PM EDT Fri Aug 29 2025

.TONIGHT...North winds 10 to 15 knots becoming northwest 5 to
10 knots in the late evening and early morning, then becoming
light and variable early in the morning. Clear. A slight chance
of waterspouts in the evening. A chance of sprinkles in the
evening. Waves 1 to 3 feet.
.SATURDAY...Northwest winds 5 to 10 knots veering to the
northeast 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.
.SUNDAY...Light and variable winds. Sunny. Waves 2 feet or less.

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

$$

LHZ443-300315-
Port Sanilac to Port Huron MI-
302 PM EDT Fri Aug 29 2025

.TONIGHT...North winds 10 to 15 knots diminishing to 5 to
10 knots in the late evening and early morning, then becoming
light and variable early in the morning. Mostly clear. A slight
chance of waterspouts in the evening. A chance of sprinkles in
the evening. Waves 1 to 3 feet.
.SATURDAY...Northwest winds 5 to 10 knots veering to the
northeast early in the afternoon. Mostly sunny. Waves 2 feet or
less.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots early in the
evening becoming light and variable. Mostly clear. Waves 2 feet
or less.
.SUNDAY...Light and variable winds becoming northeast 5 to
10 knots early in the afternoon. Sunny. Waves 2 feet or less.

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

$$

LEZ444-300315-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
302 PM EDT Fri Aug 29 2025

.TONIGHT...Light and variable winds becoming northeast 5 to
10 knots in the late evening and overnight. Partly cloudy 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.
.SUNDAY...Light and variable winds becoming east 5 to 10 knots in
the late morning and afternoon. Sunny. 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.

$$

AM

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