041
FZUS53 KAPX 181818
NSHAPX

Nearshore Marine Forecast
National Weather Service Gaylord MI
218 PM EDT Mon Aug 18 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.

LSZ321-190500-
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
218 PM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING
THROUGH LATE TONIGHT...

.THROUGH EARLY EVENING...Southeast wind 10 to 15 knots. Gusts to
25 knots. Mostly cloudy. Waves 2 feet or less.
.TONIGHT...Southeast wind 10 to 15 knots. Gusts to 25 knots.
Scattered showers. Waves 2 to 3 feet.
.TUESDAY...Southeast wind 10 to 15 knots. Mostly cloudy. Waves
2 feet or less.
.TUESDAY NIGHT...Northeast wind 5 to 10 knots. Mostly cloudy.
Waves 2 feet or less.
.WEDNESDAY...North wind 5 to 10 knots. Sunny. Waves 2 feet or
less.

See the open lakes forecast for days 3 through 5.

$$

LSZ322-190500-
St. Marys River Point Iroquois to E. Potagannissing Bay-
218 PM EDT Mon Aug 18 2025

.THROUGH EARLY EVENING...Southeast wind 10 to 15 knots. Isolated
showers.
.TONIGHT...Southeast wind 10 to 15 knots. Scattered showers.
.TUESDAY...Southeast wind 10 to 15 knots. Scattered showers.
.TUESDAY NIGHT...Light winds. Mostly cloudy.
.WEDNESDAY...North wind 5 to 10 knots. Mostly sunny.

See the open lakes forecast for days 3 through 5.

$$

LHZ346-190500-
St Ignace to False Detour Channel-
218 PM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THROUGH EARLY EVENING...Southeast wind 10 to 20 knots. Isolated
showers. Waves 3 to 5 feet.
.TONIGHT...Southeast wind 10 to 20 knots. Scattered showers.
Waves 3 to 5 feet.
.TUESDAY...Southeast wind 10 to 15 knots. Scattered showers.
Waves 2 to 4 feet.
.TUESDAY NIGHT...Northeast wind 5 to 10 knots. Mostly cloudy.
Waves 2 to 3 feet.
.WEDNESDAY...North wind 5 to 10 knots. Mostly sunny. Waves 2 feet
or less.

See the open lakes forecast for days 3 through 5.

$$

LMZ341-190500-
Seul Choix Point to 5NM West of Mackinac Bridge-
218 PM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT TUESDAY...

.THROUGH EARLY EVENING...Southeast wind 10 to 20 knots. Gusts to
25 knots. Scattered showers. Waves 2 to 4 feet.
.TONIGHT...Southeast wind 15 to 20 knots. Gusts to 25 knots. Numerous
showers and isolated thunderstorms. Waves 2 to 4 feet.
.TUESDAY...East wind 5 to 10 knots. Mostly cloudy. Waves 2 feet
or less.
.TUESDAY NIGHT...North wind 5 to 10 knots. Mostly cloudy. Waves
2 feet or less.
.WEDNESDAY...North wind 5 to 10 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.

$$

LMZ342-190500-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
218 PM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT TUESDAY...

.THROUGH EARLY EVENING...Southeast wind 10 to 20 knots. Gusts to
25 knots. Scattered showers. Waves 2 to 3 feet.
.TONIGHT...Southeast wind 15 to 20 knots. Gusts to 25 knots. Scattered
showers and isolated thunderstorms. Waves 2 to 3 feet.
.TUESDAY...East wind 10 to 15 knots. Scattered showers. Waves
2 feet or less.
.TUESDAY NIGHT...Northeast wind 5 to 10 knots. Mostly cloudy.
Waves 2 feet or less.
.WEDNESDAY...North wind 5 to 10 knots. 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.

$$

LMZ323-190500-
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-
218 PM EDT Mon Aug 18 2025

.THROUGH EARLY EVENING...East wind 15 to 20 knots. Scattered
showers. Waves 2 feet or less.
.TONIGHT...Southeast wind 10 to 15 knots. Scattered showers and
thunderstorms. Waves 2 feet or less.
.TUESDAY...East wind 5 to 10 knots. Mostly cloudy. Waves 2 feet
or less.
.TUESDAY NIGHT...North wind 5 to 10 knots. Mostly cloudy. Waves
2 feet or less.
.WEDNESDAY...North wind 5 to 10 knots. 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.

$$

LMZ344-345-190500-
Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
218 PM EDT Mon Aug 18 2025

.THROUGH EARLY EVENING...East wind 5 to 10 knots. Scattered
showers. Waves 2 feet or less.
.TONIGHT...Southeast wind 10 to 15 knots. Scattered showers and
thunderstorms. Waves 2 feet or less.
.TUESDAY...Northeast wind 5 to 10 knots. Mostly cloudy. Waves
2 feet or less.
.TUESDAY NIGHT...North wind 5 to 10 knots. Mostly cloudy. Waves
2 feet or less.
.WEDNESDAY...North wind 5 to 10 knots. 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.

$$

LMZ346-190500-
Manistee to Point Betsie MI-
218 PM EDT Mon Aug 18 2025

.THROUGH EARLY EVENING...Light winds. Scattered showers. Waves
2 feet or less.
.TONIGHT...Southeast wind 5 to 10 knots. Scattered showers and
thunderstorms. Waves 2 feet or less.
.TUESDAY...North wind 5 to 10 knots. Mostly cloudy. Waves 2 feet
or less.
.TUESDAY NIGHT...North wind 5 to 10 knots. Partly cloudy. Waves
2 feet or less.
.WEDNESDAY...North wind 10 to 15 knots. 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.

$$

LHZ345-190500-
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
218 PM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THROUGH EARLY EVENING...East wind 15 to 20 knots. Gusts to 25
knots. Scattered showers. Waves 2 to 4 feet.
.TONIGHT...Southeast wind 15 to 20 knots. Gusts to 25 knots. Numerous
showers. Waves 2 to 4 feet.
.TUESDAY...East wind 10 to 15 knots. Scattered showers. Waves
2 feet or less.
.TUESDAY NIGHT...Northeast wind 5 to 10 knots. Mostly cloudy.
Waves 2 feet or less.
.WEDNESDAY...Northeast wind 5 to 10 knots. Sunny. Waves 2 feet or
less.

See the open lakes forecast for days 3 through 5.

$$

LHZ347-190500-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
218 PM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

.THROUGH EARLY EVENING...East wind 15 to 20 knots. Gusts to 25
knots. Isolated showers. Waves 3 to 5 feet.
.TONIGHT...Southeast wind 10 to 20 knots. Gusts to 25 knots. Scattered
showers and isolated thunderstorms. Waves 3 to 5 feet.
.TUESDAY...Southeast wind 10 to 15 knots. Scattered showers.
Waves 2 to 3 feet.
.TUESDAY NIGHT...Northeast wind 5 to 10 knots. Mostly cloudy.
Waves 2 feet or less.
.WEDNESDAY...North wind 5 to 10 knots. 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.

$$

LHZ348-190500-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-
218 PM EDT Mon Aug 18 2025

.THROUGH EARLY EVENING...East wind 15 to 20 knots. Partly sunny.
Waves 2 to 4 feet.
.TONIGHT...Southeast wind 10 to 15 knots. Numerous showers. Waves
2 to 4 feet.
.TUESDAY...Southeast wind 10 to 15 knots. Scattered showers.
Waves 3 to 5 feet.
.TUESDAY NIGHT...Northeast wind 5 to 10 knots. Mostly cloudy.
Waves 2 to 3 feet.
.WEDNESDAY...North wind 10 to 15 knots. Sunny. Waves 2 to 4 feet.

See the open lakes forecast for days 3 through 5.

$$

LHZ349-190500-
Sturgeon Pt to Alabaster MI-
218 PM EDT Mon Aug 18 2025

.THROUGH EARLY EVENING...East wind 15 to 20 knots. Mostly sunny.
Waves 2 to 3 feet.
.TONIGHT...Southeast wind 10 to 15 knots. Numerous showers and
isolated thunderstorms. Waves 2 to 4 feet.
.TUESDAY...Southeast wind 10 to 15 knots. Scattered showers.
Waves 2 to 4 feet.
.TUESDAY NIGHT...Northeast wind 5 to 10 knots. Mostly cloudy.
Waves 2 feet or less.
.WEDNESDAY...North 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.

$$

MSB