417
FZUS53 KAPX 041915
NSHAPX
NEARSHORE MARINE FORECAST
NATIONAL WEATHER SERVICE GAYLORD MI
315 PM EDT THU SEP 4 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.
LSZ321-050315-
WHITEFISH BAY (U.S. PORTION)/WHITEFISH POINT TO POINT IROQUOIS MI-
315 PM EDT THU SEP 4 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
FRIDAY NIGHT...
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING SOUTH 10 TO
20 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF SHOWERS EARLY IN THE
EVENING, THEN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT. WAVES 3 TO 5 FEET.
FRIDAY
WEST WIND 15 TO 25 KNOTS WITH GUSTS TO AROUND 35 KNOTS.
SLIGHT CHANCE OF WATERSPOUTS. SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. WAVES 6 TO 9 FEET.
FRIDAY NIGHT
WEST WIND 15 TO 20 KNOTS. CHANCE OF SHOWERS.
WAVES 5 TO 8 FEET.
SATURDAY
WEST WIND 10 TO 15 KNOTS. 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.
LSZ322-050315-
ST. MARYS RIVER POINT IROQUOIS TO E. POTAGANNISSING BAY-
315 PM EDT THU SEP 4 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE
FRIDAY NIGHT...
TONIGHT
SOUTH WIND 10 TO 20 KNOTS WITH GUSTS TO AROUND
35 KNOTS. CHANCE OF SHOWERS EARLY IN THE EVENING, THEN SHOWERS
AFTER MIDNIGHT.
FRIDAY
SOUTHWEST WIND 15 TO 25 KNOTS WITH GUSTS TO AROUND
35 KNOTS. RAIN SHOWERS AND A CHANCE OF THUNDERSTORMS.
FRIDAY NIGHT
WEST WIND 10 TO 15 KNOTS. CHANCE OF SHOWERS.
SATURDAY
WEST 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.
LHZ346-050315-
ST IGNACE TO FALSE DETOUR CHANNEL-
315 PM EDT THU SEP 4 2025
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
AFTERNOON...
TONIGHT
SOUTH WIND 15 TO 25 KNOTS WITH GUSTS TO AROUND
35 KNOTS. SLIGHT CHANCE OF WATERSPOUTS EARLY IN THE EVENING.
CHANCE OF SHOWERS EARLY IN THE EVENING, THEN SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 2 TO 4 FEET
BUILDING TO 4 TO 6 FEET AFTER MIDNIGHT.
FRIDAY
SOUTHWEST WIND 15 TO 25 KNOTS WITH GUSTS TO AROUND
40 KNOTS. SLIGHT CHANCE OF WATERSPOUTS. SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS. WAVES 6 TO 9 FEET.
FRIDAY NIGHT
WEST WIND 10 TO 20 KNOTS. CHANCE OF SHOWERS.
WAVES 4 TO 6 FEET.
SATURDAY
WEST WIND 10 TO 15 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.
LMZ341-050315-
SEUL CHOIX POINT TO 5NM WEST OF MACKINAC BRIDGE-
315 PM EDT THU SEP 4 2025
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
MORNING...
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING 10 TO 20 KNOTS
WITH GUSTS TO AROUND 35 KNOTS EARLY IN THE EVENING, THEN BECOMING
SOUTH 15 TO 25 KNOTS WITH GUSTS TO AROUND 35 KNOTS EARLY IN THE
MORNING. SLIGHT CHANCE OF WATERSPOUTS THROUGH THE NIGHT. CHANCE
OF SHOWERS EARLY IN THE EVENING. RAIN SHOWERS AND A CHANCE OF
THUNDERSTORMS AFTER MIDNIGHT. WAVES 4 TO 6 FEET BUILDING TO 8 TO
11 FEET AFTER MIDNIGHT. WAVES OCCASIONALLY AROUND 14 FEET.
FRIDAY
WEST WIND 15 TO 25 KNOTS WITH GUSTS TO AROUND 35 KNOTS.
CHANCE OF WATERSPOUTS. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. WAVES 9 TO 12 FEET.
FRIDAY NIGHT
WEST WIND 10 TO 20 KNOTS. PARTLY CLOUDY. WAVES
4 TO 6 FEET.
SATURDAY
WEST WIND 10 TO 15 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.
LMZ342-050315-
NORWOOD MI TO 5NM WEST OF MACKINAC BRIDGE INCLUDING LITTLE
TRAVERSE BAY-
315 PM EDT THU SEP 4 2025
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
MORNING...
TONIGHT
SOUTHWEST WIND 10 TO 20 KNOTS BECOMING SOUTH 15 TO
25 KNOTS WITH GUSTS TO AROUND 40 KNOTS AFTER MIDNIGHT. SLIGHT
CHANCE OF WATERSPOUTS THROUGH THE NIGHT. CHANCE OF SHOWERS EARLY
IN THE EVENING. RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT. WAVES 3 TO 5 FEET BUILDING TO 4 TO 7 FEET AFTER
MIDNIGHT.
FRIDAY
WEST WIND 15 TO 25 KNOTS WITH GUSTS TO AROUND 40 KNOTS.
SLIGHT CHANCE OF WATERSPOUTS. SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. WAVES 7 TO 10 FEET.
FRIDAY NIGHT
WEST WIND 10 TO 20 KNOTS WITH GUSTS TO AROUND
35 KNOTS. CHANCE OF SHOWERS. WAVES 5 TO 8 FEET.
SATURDAY
WEST WIND 10 TO 15 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.
LMZ323-050315-
GRAND TRAVERSE BAY SOUTH OF A LINE GRAND TRAVERSE LIGHT TO
NORWOOD MI-
315 PM EDT THU SEP 4 2025
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
MORNING...
TONIGHT
SOUTH WIND 15 TO 25 KNOTS WITH GUSTS TO AROUND
35 KNOTS. SLIGHT CHANCE OF WATERSPOUTS THROUGH THE NIGHT. CHANCE
OF SHOWERS EARLY IN THE EVENING. RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 2 TO 3 FEET BUILDING TO
2 TO 4 FEET AFTER MIDNIGHT.
FRIDAY
WEST WIND 15 TO 25 KNOTS WITH GUSTS TO AROUND 40 KNOTS.
SLIGHT CHANCE OF WATERSPOUTS. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. WAVES 4 TO 6 FEET.
FRIDAY NIGHT
WEST WIND 10 TO 15 KNOTS WITH GUSTS TO AROUND
30 KNOTS. MOSTLY CLOUDY. WAVES 3 TO 5 FEET.
SATURDAY
WEST 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.
LMZ344-345-050315-
SLEEPING BEAR POINT TO GRAND TRAVERSE LIGHT MI-
POINT BETSIE TO SLEEPING BEAR POINT MI-
315 PM EDT THU SEP 4 2025
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
MORNING...
TONIGHT
SOUTH WIND 15 TO 25 KNOTS WITH GUSTS TO AROUND
40 KNOTS. SLIGHT CHANCE OF WATERSPOUTS THROUGH THE NIGHT. CHANCE
OF SHOWERS EARLY IN THE EVENING. RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 3 TO 5 FEET BUILDING TO
9 TO 12 FEET AFTER MIDNIGHT. WAVES OCCASIONALLY AROUND 15 FEET.
FRIDAY
WEST WIND UP TO 30 KNOTS WITH GUSTS TO AROUND 40 KNOTS.
CHANCE OF WATERSPOUTS. SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. WAVES 10 TO 13 FEET.
FRIDAY NIGHT
WEST WIND 15 TO 20 KNOTS. MOSTLY CLOUDY. WAVES
5 TO 8 FEET.
SATURDAY
WEST 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.
LMZ346-050315-
MANISTEE TO POINT BETSIE MI-
315 PM EDT THU SEP 4 2025
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
MORNING...
TONIGHT
SOUTH WIND UP TO 30 KNOTS WITH GUSTS TO AROUND
40 KNOTS. SLIGHT CHANCE OF WATERSPOUTS THROUGH THE NIGHT. CHANCE
OF SHOWERS EARLY IN THE EVENING. RAIN SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS AFTER MIDNIGHT. WAVES 4 TO 6 FEET BUILDING TO
11 TO 14 FEET AFTER MIDNIGHT. WAVES OCCASIONALLY AROUND 17 FEET.
FRIDAY
WEST WIND UP TO 30 KNOTS WITH GUSTS TO AROUND 40 KNOTS.
SLIGHT CHANCE OF WATERSPOUTS. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 11 TO 14 FEET.
FRIDAY NIGHT
WEST WIND 10 TO 20 KNOTS. MOSTLY CLOUDY. WAVES
5 TO 8 FEET.
SATURDAY
WEST WIND 10 TO 15 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.
LHZ345-050315-
STRAITS OF MACKINAC WITHIN 5 NM OF MACKINAC BRIDGE INCLUDING
MACKINAC ISLAND-
315 PM EDT THU SEP 4 2025
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
AFTERNOON...
TONIGHT
SOUTH WIND UP TO 30 KNOTS DECREASING TO 10 TO 20 KNOTS
WITH GUSTS TO AROUND 35 KNOTS AFTER MIDNIGHT. SLIGHT CHANCE OF
WATERSPOUTS THROUGH THE NIGHT. CHANCE OF SHOWERS EARLY IN THE
EVENING. RAIN SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS AFTER
MIDNIGHT. WAVES 2 TO 3 FEET.
FRIDAY
WEST WIND 15 TO 25 KNOTS WITH GUSTS TO AROUND 35 KNOTS.
SLIGHT CHANCE OF WATERSPOUTS. SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. WAVES 4 TO 6 FEET.
FRIDAY NIGHT
WEST WIND 10 TO 20 KNOTS. CHANCE OF SHOWERS.
WAVES 3 TO 5 FEET.
SATURDAY
WEST WIND 10 TO 15 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.
LHZ347-050315-
5NM EAST OF MACKINAC BRIDGE TO PRESQUE ISLE LIGHT MI INCLUDING
BOIS BLANC ISLAND-
315 PM EDT THU SEP 4 2025
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
AFTERNOON...
TONIGHT
SOUTH WIND 15 TO 25 KNOTS WITH GUSTS TO AROUND
35 KNOTS. SLIGHT CHANCE OF WATERSPOUTS THROUGH THE NIGHT. SLIGHT
CHANCE OF SHOWERS EARLY IN THE EVENING. RAIN SHOWERS LIKELY AFTER
MIDNIGHT. WAVES 2 FEET OR LESS BUILDING TO 2 TO 4 FEET AFTER
MIDNIGHT.
FRIDAY
SOUTHWEST WIND UP TO 30 KNOTS WITH GUSTS TO AROUND
40 KNOTS. CHANCE OF WATERSPOUTS. SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS. WAVES 4 TO 7 FEET.
FRIDAY NIGHT
WEST WIND 10 TO 20 KNOTS. CHANCE OF SHOWERS.
WAVES 3 TO 5 FEET.
SATURDAY
WEST WIND 10 TO 15 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.
LHZ348-050315-
PRESQUE ISLE LIGHT TO STURGEON PT MI INCLUDING THUNDER BAY
NATIONAL MARINE SANCTUARY-
315 PM EDT THU SEP 4 2025
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
AFTERNOON...
TONIGHT
SOUTH WIND 15 TO 25 KNOTS WITH GUSTS TO AROUND
35 KNOTS. SLIGHT CHANCE OF WATERSPOUTS AFTER MIDNIGHT. CHANCE OF
SHOWERS AFTER MIDNIGHT. WAVES 2 FEET OR LESS BUILDING TO 4 TO
7 FEET AFTER MIDNIGHT. WAVES OCCASIONALLY AROUND 8 FEET.
FRIDAY
SOUTHWEST WIND UP TO 30 KNOTS WITH GUSTS TO AROUND
40 KNOTS. CHANCE OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS.
WAVES 7 TO 10 FEET.
FRIDAY NIGHT
SOUTHWEST WIND 10 TO 20 KNOTS. PARTLY CLOUDY.
WAVES 3 TO 5 FEET.
SATURDAY
WEST WIND 10 TO 15 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.
LHZ349-050315-
STURGEON PT TO ALABASTER MI-
315 PM EDT THU SEP 4 2025
...GALE WARNING IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY
AFTERNOON...
TONIGHT
SOUTHWEST WIND 10 TO 15 KNOTS BECOMING 10 TO 20 KNOTS
EARLY IN THE EVENING, THEN BECOMING SOUTH 15 TO 25 KNOTS WITH
GUSTS TO AROUND 40 KNOTS EARLY IN THE MORNING. CHANCE OF SHOWERS
AFTER MIDNIGHT. WAVES 2 FEET OR LESS BUILDING TO 4 TO 6 FEET
AFTER MIDNIGHT.
FRIDAY
SOUTHWEST WIND UP TO 30 KNOTS WITH GUSTS TO AROUND
40 KNOTS. SLIGHT CHANCE OF SHOWERS. WAVES 5 TO 8 FEET.
FRIDAY NIGHT
WEST WIND 10 TO 20 KNOTS. PARTLY CLOUDY. WAVES
2 TO 3 FEET.
SATURDAY
WEST WIND 10 TO 15 KNOTS. MOSTLY SUNNY. WAVES 2 FEET
OR LESS.
SEE THE OPEN LAKES FORECAST FOR DAYS 3 THROUGH 5.
JLD
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