665
FZUS53 KAPX 210037
NSHAPX
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE GAYLORD MI
837 PM EDT MON APR 20 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.
LSZ321-211100-
WHITEFISH BAY (U.S. PORTION)/WHITEFISH POINT TO POINT IROQUOIS MI-
837 PM EDT MON APR 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING
OVERNIGHT
SOUTH WIND 10 TO 20 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS EARLY IN THE MORNING. SLIGHT CHANCE OF SNOW SHOWERS
EARLY IN THE EVENING. WAVES 2 TO 3 FEET.
TUESDAY
NORTHWEST WIND 10 TO 15 KNOTS. SUNNY. WAVES 2 FEET OR
LESS.
TUESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR.
WAVES 2 FEET OR LESS.
WEDNESDAY
LIGHT WINDS. SUNNY. WAVES 2 FEET OR LESS.
WAVE HEIGHTS ARE VALID FOR ICE FREE AREAS.
SEE THE OPEN LAKES FORECAST FOR DAYS 3 THROUGH 5.
LSZ322-211100-
ST. MARYS RIVER POINT IROQUOIS TO E. POTAGANNISSING BAY-
837 PM EDT MON APR 20 2026
OVERNIGHT
SOUTH WIND 10 TO 15 KNOTS. MOSTLY CLOUDY.
TUESDAY
WEST WIND 5 TO 10 KNOTS. SUNNY.
TUESDAY NIGHT
NORTH WIND 5 TO 10 KNOTS. MOSTLY CLEAR.
WEDNESDAY
LIGHT WINDS. SUNNY.
SEE THE OPEN LAKES FORECAST FOR DAYS 3 THROUGH 5.
LMZ341-211100-
SEUL CHOIX POINT TO 5NM WEST OF MACKINAC BRIDGE-
837 PM EDT MON APR 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING
OVERNIGHT
SOUTH WIND 15 TO 25 KNOTS BECOMING SOUTHWEST AFTER
MIDNIGHT. MOSTLY CLOUDY EARLY IN THE EVENING THEN BECOMING PARTLY
CLOUDY. WAVES 4 TO 6 FEET.
TUESDAY
WEST WIND 10 TO 15 KNOTS. SUNNY. WAVES 3 TO 5 FEET.
TUESDAY NIGHT
NORTH WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
2 FEET OR LESS.
WEDNESDAY
LIGHT WINDS. SUNNY. WAVES 2 FEET OR LESS.
SEE THE OPEN LAKES FORECAST FOR DAYS 3 THROUGH 5.
LMZ342-211100-
NORWOOD MI TO 5NM WEST OF MACKINAC BRIDGE INCLUDING LITTLE
TRAVERSE BAY-
837 PM EDT MON APR 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING
OVERNIGHT
SOUTHWEST WIND 15 TO 25 KNOTS. MOSTLY CLOUDY. WAVES
2 TO 3 FEET BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT.
TUESDAY
WEST WIND 10 TO 15 KNOTS. SUNNY. WAVES 2 TO 4 FEET.
TUESDAY NIGHT
LIGHT WINDS. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
WEDNESDAY
LIGHT WINDS. SUNNY. WAVES 2 FEET OR LESS.
SEE THE OPEN LAKES FORECAST FOR DAYS 3 THROUGH 5.
LMZ323-211100-
GRAND TRAVERSE BAY SOUTH OF A LINE GRAND TRAVERSE LIGHT TO
NORWOOD MI-
837 PM EDT MON APR 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING
OVERNIGHT
SOUTH WIND 15 TO 25 KNOTS. MOSTLY CLOUDY. WAVES
2 FEET OR LESS BUILDING TO 2 TO 3 FEET AFTER MIDNIGHT.
TUESDAY
WEST WIND 10 TO 15 KNOTS. SUNNY. WAVES 2 TO 3 FEET.
TUESDAY NIGHT
LIGHT WINDS. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
WEDNESDAY
LIGHT WINDS. SUNNY. WAVES 2 FEET OR LESS.
SEE THE OPEN LAKES FORECAST FOR DAYS 3 THROUGH 5.
LMZ344-211100-
SLEEPING BEAR POINT TO GRAND TRAVERSE LIGHT MI-
837 PM EDT MON APR 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING
OVERNIGHT
SOUTH WIND 15 TO 25 KNOTS. MOSTLY CLOUDY. WAVES
2 FEET OR LESS BUILDING TO 2 TO 3 FEET AFTER MIDNIGHT.
TUESDAY
WEST WIND 10 TO 15 KNOTS. SUNNY. WAVES 2 TO 3 FEET.
TUESDAY NIGHT
LIGHT WINDS. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
WEDNESDAY
LIGHT WINDS. SUNNY. WAVES 2 FEET OR LESS.
SEE THE OPEN LAKES FORECAST FOR DAYS 3 THROUGH 5.
LMZ345-211100-
POINT BETSIE TO SLEEPING BEAR POINT MI-
837 PM EDT MON APR 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING
OVERNIGHT
SOUTH WIND 15 TO 25 KNOTS. MOSTLY CLOUDY. WAVES 2 TO
3 FEET BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT.
TUESDAY
SOUTHWEST WIND 10 TO 15 KNOTS. SUNNY. WAVES 2 TO
4 FEET.
TUESDAY NIGHT
LIGHT WINDS. MOSTLY CLEAR. WAVES 2 FEET OR LESS.
WEDNESDAY
LIGHT WINDS. SUNNY. WAVES 2 FEET OR LESS.
SEE THE OPEN LAKES FORECAST FOR DAYS 3 THROUGH 5.
LMZ346-211100-
MANISTEE TO POINT BETSIE MI-
837 PM EDT MON APR 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING
OVERNIGHT
SOUTH WIND 15 TO 25 KNOTS. MOSTLY CLOUDY. WAVES 3 TO
5 FEET.
TUESDAY
SOUTHWEST WIND 10 TO 15 KNOTS. SUNNY. WAVES 3 TO
5 FEET.
TUESDAY NIGHT
NORTHEAST WIND 5 TO 10 KNOTS. MOSTLY CLEAR.
WAVES 2 FEET OR LESS.
WEDNESDAY
LIGHT WINDS. SUNNY. WAVES 2 FEET OR LESS.
SEE THE OPEN LAKES FORECAST FOR DAYS 3 THROUGH 5.
LHZ345-211100-
STRAITS OF MACKINAC WITHIN 5 NM OF MACKINAC BRIDGE INCLUDING
MACKINAC ISLAND-
837 PM EDT MON APR 20 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH TUESDAY MORNING
OVERNIGHT
SOUTH WIND 15 TO 25 KNOTS BECOMING SOUTHWEST 10 TO
15 KNOTS EARLY IN THE MORNING. MOSTLY CLOUDY. WAVES 2 FEET OR
LESS.
TUESDAY
WEST WIND 10 TO 15 KNOTS. SUNNY. WAVES 2 FEET OR LESS.
TUESDAY NIGHT
NORTH WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
2 FEET OR LESS.
WEDNESDAY
LIGHT WINDS. SUNNY. WAVES 2 FEET OR LESS.
SEE THE OPEN LAKES FORECAST FOR DAYS 3 THROUGH 5.
LHZ346-211100-
ST IGNACE TO FALSE DETOUR CHANNEL-
837 PM EDT MON APR 20 2026
OVERNIGHT
SOUTH WIND 10 TO 20 KNOTS. MOSTLY CLOUDY. WAVES 2 TO
4 FEET.
TUESDAY
WEST WIND 10 TO 15 KNOTS. SUNNY. WAVES 2 TO 4 FEET.
TUESDAY NIGHT
NORTH WIND 5 TO 10 KNOTS. MOSTLY CLEAR. WAVES
2 FEET OR LESS.
WEDNESDAY
SOUTHEAST WIND 5 TO 10 KNOTS. SUNNY. WAVES 2 FEET OR
LESS.
SEE THE OPEN LAKES FORECAST FOR DAYS 3 THROUGH 5.
LHZ347-211100-
5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LIGHT MI INCLUDING
BOIS BLANC ISLAND-
837 PM EDT MON APR 20 2026
OVERNIGHT
SOUTH WIND 10 TO 20 KNOTS. MOSTLY CLOUDY. WAVES 2 TO
3 FEET.
TUESDAY
WEST WIND 10 TO 15 KNOTS. SUNNY. WAVES 2 TO 3 FEET.
TUESDAY NIGHT
NORTHWEST WIND 5 TO 10 KNOTS. MOSTLY CLEAR.
WAVES 2 FEET OR LESS.
WEDNESDAY
LIGHT WINDS. SUNNY. WAVES 2 FEET OR LESS.
SEE THE OPEN LAKES FORECAST FOR DAYS 3 THROUGH 5.
LHZ348-211100-
PRESQUE ISLE LIGHT TO STURGEON PT MI INCLUDING THUNDER BAY
NATIONAL MARINE SANCTUARY-
837 PM EDT MON APR 20 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...
OVERNIGHT
SOUTH WIND 10 TO 20 KNOTS. MOSTLY CLOUDY. WAVES 3 TO
5 FEET.
TUESDAY
SOUTH WIND 15 TO 20 KNOTS. SUNNY. WAVES 3 TO 5 FEET.
TUESDAY NIGHT
NORTH WIND 5 TO 10 KNOTS. MOSTLY CLEAR. 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.
LHZ349-211100-
STURGEON PT TO ALABASTER MI-
837 PM EDT MON APR 20 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT TUESDAY THROUGH
TUESDAY AFTERNOON...
OVERNIGHT
SOUTH WIND 10 TO 20 KNOTS. MOSTLY CLOUDY. WAVES 2 TO
4 FEET.
TUESDAY
SOUTHWEST WIND 10 TO 20 KNOTS. MOSTLY SUNNY. WAVES
2 TO 4 FEET.
TUESDAY NIGHT
NORTH WIND 5 TO 10 KNOTS. MOSTLY CLEAR. 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.
JLD
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