635
FZUS53 KAPX 171803
NSHAPX

Nearshore Marine Forecast
National Weather Service Gaylord MI
203 PM EDT Sun Aug 17 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.

LSZ321-180745-
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
203 PM EDT Sun Aug 17 2025

.THROUGH EARLY EVENING...North wind 5 to 10 knots. Sunny. Waves
2 feet or less.
.TONIGHT...East wind 10 to 15 knots. Mostly clear. Waves 2 feet
or less.
.MONDAY...Southeast wind 10 to 15 knots. Chance of showers. Waves
2 feet or less.
.MONDAY NIGHT...Southeast wind 10 to 20 knots. Showers likely and
a chance of thunderstorms. Waves 2 to 3 feet.
.TUESDAY...Southeast wind 10 to 15 knots. Chance of showers.
Waves 2 feet or less.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LSZ322-180745-
St. Marys River Point Iroquois to E. Potagannissing Bay-
203 PM EDT Sun Aug 17 2025

.THROUGH EARLY EVENING...Northeast wind 5 to 10 knots. Sunny.
.TONIGHT...East wind 10 to 15 knots. Mostly clear.
.MONDAY...Southeast wind 10 to 15 knots. Partly sunny.
.MONDAY NIGHT...Southeast wind 10 to 15 knots. Chance of showers
and thunderstorms.
.TUESDAY...Southeast wind 5 to 10 knots. Chance of showers.

Winds higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LHZ346-180745-
St Ignace to False Detour Channel-
203 PM EDT Sun Aug 17 2025

.THROUGH EARLY EVENING...Northeast wind 5 to 10 knots becoming
east early in the evening. Sunny. Waves 2 feet or less.
.TONIGHT...East wind 10 to 15 knots. Mostly clear. Waves 2 to
4 feet.
.MONDAY...Southeast wind 10 to 20 knots. Partly sunny. Waves 3 to
5 feet.
.MONDAY NIGHT...Southeast wind 10 to 20 knots. Chance of showers
and thunderstorms. Waves 3 to 5 feet.
.TUESDAY...Southeast wind 10 to 15 knots. Chance of showers.
Waves 3 to 5 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LMZ341-180745-
Seul Choix Point to 5NM West of Mackinac Bridge-
203 PM EDT Sun Aug 17 2025

.THROUGH EARLY EVENING...Northeast wind 5 to 10 knots. Sunny.
Waves 2 feet or less.
.TONIGHT...East wind 10 to 15 knots. Mostly clear. Waves 2 to
4 feet.
.MONDAY...Southeast wind 10 to 20 knots. Chance of showers. Waves
2 to 3 feet.
.MONDAY NIGHT...Southeast wind 10 to 20 knots. Showers likely.
Waves 2 to 3 feet.
.TUESDAY...East wind 10 to 15 knots. Chance of showers. Waves
2 feet or less.

See the open lakes forecast for days 3 through 5.

$$

LMZ342-180745-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
203 PM EDT Sun Aug 17 2025

.THROUGH EARLY EVENING...Northeast wind 10 to 15 knots. Sunny.
Waves 2 feet or less.
.TONIGHT...East wind 10 to 15 knots. Mostly clear. Waves 2 feet
or less.
.MONDAY...Southeast wind 15 to 20 knots. Partly sunny. Waves 2 to
3 feet.
.MONDAY NIGHT...Southeast wind 10 to 15 knots. Showers likely and
a chance of thunderstorms. Waves 2 to 3 feet.
.TUESDAY...South wind 10 to 15 knots. Chance of showers. Waves
2 feet or less.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LMZ323-180745-
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-
203 PM EDT Sun Aug 17 2025

.THROUGH EARLY EVENING...Northeast wind 10 to 15 knots. Sunny.
Waves 2 feet or less.
.TONIGHT...East wind 10 to 15 knots. Mostly clear. Waves 2 feet
or less.
.MONDAY...Southeast wind 10 to 15 knots. Mostly sunny. Waves
2 feet or less.
.MONDAY NIGHT...Southeast wind 5 to 10 knots. Chance of showers
and thunderstorms. Waves 2 feet or less.
.TUESDAY...West wind 5 to 10 knots. Chance of showers. Waves
2 feet or less.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LMZ344-345-180745-
Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
203 PM EDT Sun Aug 17 2025

.THROUGH EARLY EVENING...Northeast wind 10 to 15 knots. Sunny.
Waves 2 to 3 feet.
.TONIGHT...East wind 10 to 15 knots. Mostly clear. Waves 2 to
3 feet.
.MONDAY...Southeast wind 10 to 15 knots. Partly sunny. Waves
2 feet or less.
.MONDAY NIGHT...Southeast wind 5 to 10 knots. Showers likely and
a chance of thunderstorms. Waves 2 feet or less.
.TUESDAY...West wind 5 to 10 knots. Chance of showers. Waves
2 feet or less.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LMZ346-180745-
Manistee to Point Betsie MI-
203 PM EDT Sun Aug 17 2025

.THROUGH EARLY EVENING...Northeast wind 10 to 15 knots. Sunny.
Waves 2 to 3 feet.
.TONIGHT...East wind 10 to 15 knots. Partly cloudy. Waves 2 to
3 feet.
.MONDAY...South wind 10 to 15 knots. Mostly sunny. Waves 2 feet
or less.
.MONDAY NIGHT...South wind 5 to 10 knots. Showers likely and a
chance of thunderstorms. Waves 2 feet or less.
.TUESDAY...West wind 5 to 10 knots. Chance of showers. Waves
2 feet or less.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LHZ345-180745-
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
203 PM EDT Sun Aug 17 2025

.THROUGH EARLY EVENING...Northeast wind 10 to 15 knots. Sunny.
Waves 2 feet or less.
.TONIGHT...East wind 10 to 15 knots. Mostly clear. Waves 2 to
3 feet.
.MONDAY...Southeast wind 10 to 20 knots. Mostly sunny. Waves 2 to
4 feet.
.MONDAY NIGHT...Southeast wind 10 to 20 knots. Showers likely and
a chance of thunderstorms. Waves 2 to 4 feet.
.TUESDAY...Southeast wind 5 to 10 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.

$$

LHZ347-180745-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
203 PM EDT Sun Aug 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING...

.THROUGH EARLY EVENING...Northeast wind 10 to 15 knots. Sunny.
Waves 3 to 5 feet.
.TONIGHT...East wind 10 to 15 knots. Mostly clear. Waves 2 to
4 feet.
.MONDAY...Southeast wind 10 to 20 knots. Mostly sunny. Waves 3 to
5 feet.
.MONDAY NIGHT...Southeast wind 10 to 20 knots. Showers likely and
a chance of thunderstorms. Waves 3 to 5 feet.
.TUESDAY...Southeast wind 10 to 15 knots. Chance of showers.
Waves 2 to 4 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LHZ348-180745-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-
203 PM EDT Sun Aug 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING...

.THROUGH EARLY EVENING...Northeast wind 10 to 15 knots. Sunny.
Waves 3 to 5 feet.
.TONIGHT...East wind 10 to 15 knots. Mostly clear. Waves 2 to
4 feet.
.MONDAY...Southeast wind 10 to 15 knots. Mostly sunny. Waves 2 to
4 feet.
.MONDAY NIGHT...Southeast wind 10 to 15 knots. Chance of showers
and thunderstorms. Waves 2 to 4 feet.
.TUESDAY...Southeast wind 10 to 15 knots. Showers likely and a
chance of thunderstorms. Waves 2 to 4 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LHZ349-180745-
Sturgeon Pt to Alabaster MI-
203 PM EDT Sun Aug 17 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING...

.THROUGH EARLY EVENING...Northeast wind 10 to 15 knots. Mostly
sunny. Waves 3 to 5 feet.
.TONIGHT...Northeast wind 10 to 15 knots. Mostly clear. Waves
2 to 4 feet.
.MONDAY...East wind 10 to 15 knots. Sunny. Waves 2 to 4 feet.
.MONDAY NIGHT...Southeast wind 10 to 15 knots. Chance of showers.
Waves 2 to 4 feet.
.TUESDAY...South wind 10 to 15 knots. Chance of showers and
thunderstorms. Waves 2 to 4 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

MSB