Nearshore Marine Forecast
Issued by NWS Detroit/Pontiac, MI

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FZUS53 KDTX 291951
NSHDTX

Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
351 PM EDT Sun Jun 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.

LHZ422-300400-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
351 PM EDT Sun Jun 29 2025

.TONIGHT...South winds 10 to 15 knots diminishing to 5 to
10 knots after midnight. Mostly clear. Waves 2 feet or less.
.MONDAY...South winds 5 to 10 knots becoming southwest 10 to
15 knots early in the afternoon. Partly cloudy. A chance of
showers and a slight chance of thunderstorms in the morning, then
thunderstorms likely and a chance of showers in the afternoon.
Waves 2 feet or less.
.MONDAY NIGHT...Southwest winds 10 to 15 knots becoming west 5 to
10 knots in the late evening and early morning, then becoming
northwest 10 to 15 knots after midnight. Partly cloudy.
Thunderstorms likely and a chance of showers in the evening.
Waves 2 feet or less.
.TUESDAY...West winds 10 to 15 knots. Mostly sunny. Waves 1 to
3 feet.

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

$$

LHZ421-300400-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
351 PM EDT Sun Jun 29 2025

.TONIGHT...South winds 10 to 15 knots diminishing to 5 to
10 knots after midnight. Mostly clear. Waves 2 feet or less.
.MONDAY...South winds 5 to 10 knots becoming southwest 10 to
15 knots early in the afternoon. Partly cloudy. A chance of
showers and a slight chance of thunderstorms in the morning, then
thunderstorms likely and a chance of showers in the afternoon.
Waves 2 feet or less.
.MONDAY NIGHT...Southwest winds 10 to 15 knots becoming northwest
5 to 10 knots in the late evening and overnight. Mostly cloudy
with thunderstorms likely and a chance of showers in the evening,
then partly cloudy after midnight. Waves 2 feet or less.
.TUESDAY...West winds 10 to 15 knots. Mostly sunny. Waves 1 to
3 feet.

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

$$

LHZ441-300400-
Port Austin to Harbor Beach MI-
351 PM EDT Sun Jun 29 2025

.TONIGHT...Southeast winds 10 to 15 knots becoming south 5 to
10 knots in the late evening and overnight. Mostly clear. Waves
2 feet or less.
.MONDAY...South winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and afternoon. Mostly sunny with a chance of
showers in the morning, then partly cloudy with thunderstorms
likely and a chance of showers in the afternoon. Waves 2 feet or
less.
.MONDAY NIGHT...South winds 5 to 10 knots veering to the west in
the late evening and overnight. Mostly cloudy. Light showers and
thunderstorms likely in the evening. Waves 2 feet or less.
.TUESDAY...Northwest winds 5 to 10 knots becoming west 10 to
15 knots in the late morning and afternoon. Partly cloudy in the
morning then clearing. Waves 2 feet or less.

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

$$

LHZ442-300400-
Harbor Beach to Port Sanilac MI-
351 PM EDT Sun Jun 29 2025

.TONIGHT...South winds 10 to 15 knots diminishing to 5 to
10 knots in the late evening and overnight. Mostly clear. Waves
2 feet or less.
.MONDAY...South winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and afternoon. Mostly sunny with a chance of
showers and a slight chance of thunderstorms in the morning, then
partly cloudy with showers and thunderstorms likely in the
afternoon. Locally heavy rainfall possible in the afternoon.
Waves 2 feet or less.
.MONDAY NIGHT...Southwest winds 5 to 10 knots veering to the west
after midnight. Mostly cloudy. Light showers and thunderstorms
likely in the evening, then showers likely after midnight. Waves
2 feet or less.
.TUESDAY...West winds 5 to 10 knots. Partly cloudy in the morning
then clearing. Waves 2 feet or less.

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

$$

LHZ443-300400-
Port Sanilac to Port Huron MI-
351 PM EDT Sun Jun 29 2025

.TONIGHT...South winds 5 to 10 knots. Clear. Waves 2 feet or
less.
.MONDAY...South winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and afternoon. Mostly sunny with a chance of
showers and a slight chance of thunderstorms in the morning, then
partly cloudy with a chance of showers and thunderstorms in the
afternoon. Waves 2 feet or less.
.MONDAY NIGHT...Southwest winds 5 to 10 knots veering to the west
after midnight. Mostly cloudy. Light showers likely and a chance
of thunderstorms in the evening. Waves 2 feet or less.
.TUESDAY...West winds 5 to 10 knots. Partly cloudy in the morning
becoming mostly sunny. Waves 2 feet or less.

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

$$

LEZ444-300400-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
351 PM EDT Sun Jun 29 2025

.TONIGHT...Southeast winds 5 to 10 knots veering to the southwest
early in the morning. Mostly clear. Waves 2 feet or less.
.MONDAY...South winds 5 to 10 knots. A chance of showers and
thunderstorms in the morning, then showers with thunderstorms
likely in the afternoon. Waves 2 feet or less.
.MONDAY NIGHT...Southwest winds 5 to 10 knots becoming west 10 to
15 knots in the late evening and overnight. Partly cloudy with
showers with thunderstorms likely in the evening, then mostly
cloudy after midnight. Waves 2 feet or less.
.TUESDAY...West winds 10 to 15 knots. Mostly sunny. Waves 2 feet
or less.

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

The water temperature at Belle Isle is 73 degrees.

$$

SF

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