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FZUS53 KAPX 211805
NSHAPX

Nearshore Marine Forecast
National Weather Service Gaylord MI
205 PM EDT Fri Aug 21 2026

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.

LSZ321-220215-
Whitefish Bay (U.S. Portion)/Whitefish Point to Point Iroquois MI-
205 PM EDT Fri Aug 21 2026

.THROUGH EARLY EVENING...South wind 10 to 15 knots. Scattered
showers. Waves 2 feet or less.
.TONIGHT...Southwest wind 5 to 10 knots. Scattered showers. Waves
2 feet or less.
.SATURDAY...Northwest wind 15 to 20 knots. Partly sunny. Waves
3 to 5 feet.
.SATURDAY NIGHT...Northwest wind 10 to 20 knots. Mostly cloudy.
Waves 3 to 5 feet.
.SUNDAY...Northwest wind 10 to 20 knots. Partly sunny. Waves 4 to
6 feet.

See the open lakes forecast for days 3 through 5.

$$

LSZ322-220215-
St. Marys River Point Iroquois to E. Potagannissing Bay-
205 PM EDT Fri Aug 21 2026

.THROUGH EARLY EVENING...South wind 10 to 15 knots. Scattered
showers.
.TONIGHT...South wind 5 to 10 knots. Numerous showers.
.SATURDAY...Northwest wind 15 to 20 knots. Scattered showers.
.SATURDAY NIGHT...Northwest wind 15 to 20 knots. Mostly cloudy.
.SUNDAY...Northwest wind 10 to 20 knots. Partly sunny.

See the open lakes forecast for days 3 through 5.

$$

LMZ341-220215-
Seul Choix Point to 5NM West of Mackinac Bridge-
205 PM EDT Fri Aug 21 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.THROUGH EARLY EVENING...South wind 10 to 15 knots with gusts to
25 knots. Scattered showers. Waves 2 to 4 feet.
.TONIGHT...West wind 5 to 10 knots. Scattered showers. Waves 2 to
4 feet.
.SATURDAY...Northwest wind 10 to 15 knots. Scattered showers.
Waves 2 to 3 feet.
.SATURDAY NIGHT...Northwest wind 10 to 15 knots. Mostly cloudy.
Waves 2 to 3 feet.
.SUNDAY...Northwest wind 10 to 20 knots. Partly sunny. Waves 2 to
3 feet.

See the open lakes forecast for days 3 through 5.

$$

LMZ342-220215-
Norwood MI to 5NM West of Mackinac Bridge including Little
Traverse Bay-
205 PM EDT Fri Aug 21 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.THROUGH EARLY EVENING...South wind 10 to 15 knots with gusts to
25 knots. Scattered
showers. Waves 2 feet or less.
.TONIGHT...Southwest wind 5 to 10 knots. Numerous showers. Waves
2 feet or less.
.SATURDAY...Northwest wind 15 to 20 knots. Scattered showers and
thunderstorms. Waves 2 to 4 feet.
.SATURDAY NIGHT...Northwest wind 10 to 20 knots. Mostly cloudy.
Waves 3 to 5 feet.
.SUNDAY...Northwest wind 10 to 20 knots. Partly sunny. Waves 3 to
5 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LMZ323-220215-
Grand Traverse Bay south of a line Grand Traverse Light to
Norwood MI-
205 PM EDT Fri Aug 21 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.THROUGH EARLY EVENING...South wind 10 to 15 knots with gusts to
25 knots. Scattered
showers. Waves 2 feet or less.
.TONIGHT...Southwest wind 5 to 10 knots. Scattered showers. Waves
2 feet or less.
.SATURDAY...Northwest wind 15 to 20 knots. Scattered showers and
thunderstorms. Waves 2 to 4 feet.
.SATURDAY NIGHT...Northwest wind 10 to 20 knots. Mostly cloudy.
Waves 3 to 5 feet.
.SUNDAY...Northwest wind 10 to 20 knots. Partly 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.

$$

LMZ344-345-220215-
Sleeping Bear Point to Grand Traverse Light MI-
Point Betsie to Sleeping Bear Point MI-
205 PM EDT Fri Aug 21 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.THROUGH EARLY EVENING...South wind 10 to 15 knots with gusts to
25 knots. Scattered
showers. Waves 2 to 3 feet.
.TONIGHT...Southwest wind 10 to 15 knots. Scattered showers.
Waves 2 to 3 feet.
.SATURDAY...Northwest wind 15 to 20 knots. Scattered showers and
thunderstorms. Waves 2 to 4 feet.
.SATURDAY NIGHT...North wind 10 to 20 knots. Partly cloudy. Waves
3 to 5 feet.
.SUNDAY...North wind 10 to 20 knots. Partly sunny. Waves 3 to
5 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LMZ346-220215-
Manistee to Point Betsie MI-
205 PM EDT Fri Aug 21 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.THROUGH EARLY EVENING...South wind 10 to 15 knots with gusts to
25 knots. Scattered
showers. Waves 2 to 3 feet.
.TONIGHT...West wind 10 to 15 knots. Scattered showers. Waves
2 to 3 feet.
.SATURDAY...North wind 10 to 15 knots. Scattered showers and
thunderstorms. Waves 2 feet or less.
.SATURDAY NIGHT...North wind 10 to 20 knots. Partly cloudy. Waves
3 to 5 feet.
.SUNDAY...North wind 10 to 20 knots. Mostly sunny. Waves 3 to
5 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LHZ345-220215-
Straits of Mackinac within 5 nm of Mackinac Bridge including
Mackinac Island-
205 PM EDT Fri Aug 21 2026

.THROUGH EARLY EVENING...South wind 10 to 15 knots. Scattered
showers. Waves 2 feet or less.
.TONIGHT...South wind 5 to 10 knots. Numerous showers. Waves
2 feet or less.
.SATURDAY...Northwest wind 10 to 15 knots. Scattered showers and
thunderstorms. Waves 2 to 3 feet.
.SATURDAY NIGHT...Northwest wind 10 to 15 knots. Mostly cloudy.
Waves 2 to 3 feet.
.SUNDAY...Northwest wind 5 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.

$$

LHZ346-220215-
St Ignace to False Detour Channel-
205 PM EDT Fri Aug 21 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.THROUGH EARLY EVENING...South wind 10 to 15 knots with gusts to
25 knots. Scattered
showers. Waves 2 to 4 feet.
.TONIGHT...South wind 10 to 15 knots. Numerous showers. Waves
2 to 4 feet.
.SATURDAY...Northwest wind 10 to 15 knots. Partly sunny. Waves
2 feet or less.
.SATURDAY NIGHT...Northwest wind 10 to 15 knots. Mostly cloudy.
Waves 2 feet or less.
.SUNDAY...Northwest wind 10 to 20 knots. Partly sunny. Waves 2 to
3 feet.

See the open lakes forecast for days 3 through 5.

$$

LHZ347-220215-
5NM East of Mackinac Bridge to Presque Isle Light MI including
Bois Blanc Island-
205 PM EDT Fri Aug 21 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.THROUGH EARLY EVENING...South wind 10 to 15 knots with gusts to
25 knots. Scattered
showers. Waves 2 to 3 feet.
.TONIGHT...South wind 10 to 15 knots. Numerous showers. Waves
2 to 3 feet.
.SATURDAY...Northwest wind 15 to 20 knots. Scattered showers.
Waves 2 to 3 feet.
.SATURDAY NIGHT...Northwest wind 10 to 20 knots. Mostly cloudy.
Waves 3 to 5 feet.
.SUNDAY...Northwest wind 15 to 25 knots. Partly sunny. Waves 4 to
6 feet.

See the open lakes forecast for days 3 through 5.

$$

LHZ348-220215-
Presque Isle Light to Sturgeon Pt MI Including Thunder Bay
National Marine Sanctuary-
205 PM EDT Fri Aug 21 2026

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

.THROUGH EARLY EVENING...South wind 10 to 15 knots with gusts to
25 knots. Scattered
showers. Waves 2 to 4 feet.
.TONIGHT...South wind 10 to 15 knots. Numerous showers. Waves
2 to 4 feet.
.SATURDAY...Northwest wind 15 to 20 knots. Showers and scattered
thunderstorms. Waves 2 to 3 feet.
.SATURDAY NIGHT...Northwest wind 10 to 20 knots. Mostly cloudy.
Waves 3 to 5 feet.
.SUNDAY...Northwest wind 15 to 25 knots. Partly sunny. Waves 4 to
6 feet.

Winds and waves higher in the vicinity of thunderstorms.

See the open lakes forecast for days 3 through 5.

$$

LHZ349-220215-
Sturgeon Pt to Alabaster MI-
205 PM EDT Fri Aug 21 2026

.THROUGH EARLY EVENING...Southeast wind 10 to 15 knots. Isolated
showers. Waves 2 to 4 feet.
.TONIGHT...South wind 10 to 15 knots. Numerous showers. Waves
2 to 4 feet.
.SATURDAY...Northwest wind 5 to 10 knots. Numerous showers and
scattered thunderstorms. Waves 2 feet or less.
.SATURDAY NIGHT...Northwest wind 15 to 20 knots. Mostly cloudy.
Waves 2 to 4 feet.
.SUNDAY...Northwest wind 10 to 20 knots. Partly 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.

$$

DJC