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FZUS53 KAPX 030218
NSHAPX

Nearshore Marine Forecast
National Weather Service Gaylord MI
1018 PM EDT Tue Sep 2 2025

For waters within five nautical miles of shore on Lakes Huron...
Michigan and Superior.

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.

LSZ321-031030-
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
1018 PM EDT Tue Sep 2 2025

.OVERNIGHT...South wind 10 to 15 knots. Showers likely and a
chance of thunderstorms after midnight. Waves 2 feet or less
building to 2 to 3 feet after midnight.
.WEDNESDAY...West wind 10 to 20 knots. Rain showers and a chance
of thunderstorms. Waves 4 to 7 feet, especially east of a line
from Whitefish Point to Point Iroquois. Waves generally under 3
feet closer to the coast.
.WEDNESDAY NIGHT...West wind 10 to 15 knots. Chance of
waterspouts. Chance of showers. Waves 4 to 7 feet.
.THURSDAY...West wind 10 to 15 knots. Chance of waterspouts.
Chance of showers. Waves 4 to 6 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LSZ322-031030-
St. Marys River Point Iroquois to E. Potagannissing Bay-
1018 PM EDT Tue Sep 2 2025

.OVERNIGHT...South wind 10 to 15 knots. Slight chance of showers
and thunderstorms after midnight.
.WEDNESDAY...Southwest wind 10 to 15 knots. Chance of
waterspouts. Showers and a chance of thunderstorms.
.WEDNESDAY NIGHT...West wind 10 to 15 knots. Chance of
waterspouts. Chance of showers.
.THURSDAY...West wind 10 to 15 knots. Chance of showers.

Winds higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LHZ346-031030-
St Ignace to False Detour Channel-
1018 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.OVERNIGHT...South wind 10 to 15 knots. Slight chance of showers
and thunderstorms after midnight. Waves 2 feet or less.
.WEDNESDAY...Southwest wind 15 to 25 knots. Chance of
waterspouts. Showers and a chance of thunderstorms. Waves 2 to
4 feet.
.WEDNESDAY NIGHT...Northwest wind 10 to 15 knots. Chance of
showers. Waves 2 to 3 feet.
.THURSDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 to
4 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LMZ341-031030-
Seul Choix Point to 5NM West of Mackinac Bridge-
1018 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.OVERNIGHT...South wind 15 to 25 knots. Chance of showers and
thunderstorms after midnight. Waves 2 to 3 feet building to 3 to
5 feet after midnight.
.WEDNESDAY...West wind 10 to 20 knots. Chance of waterspouts.
Chance of showers and thunderstorms. Waves 4 to 6 feet.
.WEDNESDAY NIGHT...Northwest wind 10 to 15 knots. Chance of
showers. Waves 2 to 3 feet.
.THURSDAY...West wind 10 to 20 knots. Chance of waterspouts.
Chance of showers. Waves 2 to 3 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LMZ342-031030-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
1018 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.OVERNIGHT...South wind 15 to 25 knots. Chance of showers and
thunderstorms after midnight. Waves 2 feet or less building to
2 to 4 feet after midnight.
.WEDNESDAY...West wind 10 to 20 knots. Chance of waterspouts.
Showers and a chance of thunderstorms. Waves 3 to 5 feet.
.WEDNESDAY NIGHT...Northwest wind 10 to 15 knots. Chance of
waterspouts. Chance of showers. Waves 2 to 4 feet.
.THURSDAY...West wind 10 to 20 knots. Partly sunny. Waves 2 to
3 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LMZ323-031030-
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-
1018 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.OVERNIGHT...South wind 15 to 20 knots. Chance of showers and
thunderstorms after midnight. Waves 2 feet or less.
.WEDNESDAY...West wind 15 to 25 knots. Chance of waterspouts.
Showers and a chance of thunderstorms. Waves 2 to 4 feet.
.WEDNESDAY NIGHT...Northwest wind 10 to 15 knots. Chance of
waterspouts. Chance of showers. Waves 2 to 3 feet.
.THURSDAY...West wind 10 to 15 knots. Partly sunny. Waves 2 to
3 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LMZ344-345-031030-
Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
1018 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.OVERNIGHT...South wind 15 to 25 knots. Chance of showers and
thunderstorms after midnight. Waves 2 feet or less building to
2 to 4 feet after midnight.
.WEDNESDAY...West wind 10 to 20 knots. Chance of waterspouts.
Showers and a chance of thunderstorms. Waves 3 to 5 feet.
.WEDNESDAY NIGHT...Northwest wind 10 to 15 knots. Chance of
waterspouts. Chance of showers. Waves 2 to 4 feet.
.THURSDAY...West wind 10 to 15 knots. Partly sunny. Waves 2 to
3 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LMZ346-031030-
Manistee to Point Betsie MI-
1018 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.OVERNIGHT...South wind 15 to 25 knots. Chance of showers and
thunderstorms after midnight. Waves 2 feet or less building to
2 to 4 feet after midnight.
.WEDNESDAY...West wind 10 to 15 knots. Chance of waterspouts.
Showers and a chance of thunderstorms. Waves 3 to 5 feet.
.WEDNESDAY NIGHT...Northwest wind 10 to 15 knots. Chance of
showers. Waves 2 to 4 feet.
.THURSDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 to
3 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LHZ345-031030-
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
1018 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.OVERNIGHT...South wind 15 to 20 knots. Chance of showers and
slight chance of thunderstorms after midnight. Waves 2 feet or
less.
.WEDNESDAY...West wind 15 to 25 knots. Chance of waterspouts.
Showers and a chance of thunderstorms. Waves 2 to 4 feet.
.WEDNESDAY NIGHT...Northwest wind 10 to 15 knots. Chance of
showers. Waves 2 to 3 feet.
.THURSDAY...West wind 10 to 20 knots. Chance of showers. Waves
2 to 3 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LHZ347-031030-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
1018 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.OVERNIGHT...South wind 15 to 20 knots. Slight chance of showers
after midnight. Waves 2 feet or less.
.WEDNESDAY...Southwest wind 15 to 25 knots. Chance of
waterspouts. Showers and a chance of thunderstorms. Waves 2 to
4 feet.
.WEDNESDAY NIGHT...Northwest wind 10 to 15 knots. Chance of
waterspouts. Chance of showers. Waves 2 to 4 feet.
.THURSDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 to
3 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LHZ348-031030-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-
1018 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.OVERNIGHT...South wind 15 to 20 knots. Chance of showers after
midnight. Waves 2 feet or less.
.WEDNESDAY...Southwest wind 15 to 25 knots. Chance of
waterspouts. Chance of showers and thunderstorms. Waves 2 to
4 feet.
.WEDNESDAY NIGHT...Northwest wind 10 to 15 knots. Rain showers
likely. Waves 2 to 4 feet.
.THURSDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 to
3 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LHZ349-031030-
Sturgeon Pt to Alabaster MI-
1018 PM EDT Tue Sep 2 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM EDT WEDNESDAY THROUGH
WEDNESDAY EVENING...

.OVERNIGHT...South wind 15 to 20 knots. Mostly clear. Waves
2 feet or less.
.WEDNESDAY...Southwest wind 15 to 25 knots. Chance of
waterspouts. Showers and a chance of thunderstorms. Waves 2 to
4 feet.
.WEDNESDAY NIGHT...Northwest wind 10 to 15 knots. Chance of
showers. Waves 2 to 3 feet.
.THURSDAY...West wind 10 to 15 knots. Mostly sunny. Waves 2 feet
or less.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

FEF