203
FZUS52 KKEY 291440
CWFKEY
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
1040 AM EDT WED OCT 29 2025
FLORIDA BAY, HAWK CHANNEL AND STRAITS OF FLORIDA FROM OCEAN REEF
TO SOUTH OF DRY TORTUGAS, AND THE EXTREME SOUTHEASTERN GULF OF
AMERICA, INCLUDING THE FLORIDA KEYS NATIONAL MARINE SANCTUARY
SEAS ARE GIVEN AS SIGNIFICANT WAVE HEIGHT, WHICH IS THE AVERAGE
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE
MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.
WAVE DETAIL WILL INCLUDE DETAILS ABOUT THE PERIOD AND DIRECTION
OF ORIGIN FOR THE HIGHEST ENERGY WAVES. LONG-PERIOD SWELLS COMING
FROM A DIFFERENT DIRECTION THAN THE WIND WOULD BE INCLUDED IN THE
WAVE DETAIL.
GMZ005-300245-
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS
1040 AM EDT WED OCT 29 2025
SYNOPSIS
THE FLORIDA KEYS MARINE ZONES WILL REMAIN IN BETWEEN
FEATURES TODAY, WITH HURRICANE MELISSA PROGRESSING NORTHEASTWARD
AND AWAY FROM EASTERN CUBA, AND A STRONG COLD FRONT PUSHING
THROUGH THE GULF. THE FRONTAL BOUNDARY WILL CLEAR THE FLORIDA KEYS
MARINE ZONES LATE TONIGHT AND THURSDAY. IN THE WAKE OF THE FRONT,
WINDS WILL BACK TO THE NORTHWEST AND FRESHEN. AS HIGH PRESSURE
BUILDING BEHIND THE FRONT MOVES ALONG THE GULF TOWARDS THE WESTERN
ATLANTIC, BREEZES WILL SLOWLY OVER THE WEEKEND.
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF OCTOBER
28...
49 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY.
40 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS.
20 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST.
17 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY.
17 NM SOUTHEAST OF SOMBRERO KEY LIGHT...OFF MARATHON.
4 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA.
2 NM SOUTHEAST OF MOLASSES REEF LIGHT...OFF KEY LARGO.
2 NM SOUTHEAST OF CARYSFORT REEF LIGHT...OFF OCEAN REEF.
GULF STREAM INFORMATION COURTESY OF THE NATIONAL WEATHER SERVICE IN
KEY WEST BASED ON PRODUCTS FROM NASA SPORT.
GMZ031-300245-
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND
BUTTONWOOD SOUND-
1040 AM EDT WED OCT 29 2025
THIS AFTERNOON
NORTHWEST TO NORTH 10 TO 15 KNOTS. BAY WATERS A
LIGHT TO MODERATE CHOP. ISOLATED SHOWERS.
TONIGHT
NORTHWEST WINDS 10 TO 15 KNOTS, INCREASING TO NEAR 15
KNOTS. BAY WATERS A LIGHT TO MODERATE CHOP, BECOMING A MODERATE
CHOP. ISOLATED SHOWERS.
THURSDAY
NORTHWEST WINDS 15 TO 20 KNOTS, DECREASING TO NEAR 15
KNOTS. BAY WATERS CHOPPY, BECOMING A MODERATE CHOP.
THURSDAY NIGHT
NORTHWEST TO NORTH WINDS NEAR 15 KNOTS,
DECREASING TO 10 TO 15 KNOTS. BAY WATERS A MODERATE CHOP,
BECOMING A LIGHT TO MODERATE CHOP.
FRIDAY
NORTH WINDS 10 TO 15 KNOTS, DECREASING TO NEAR 10 KNOTS.
BAY WATERS A LIGHT TO MODERATE CHOP, BECOMING A LIGHT CHOP.
FRIDAY NIGHT THROUGH SATURDAY NIGHT
NORTHEAST WINDS 5 TO 10
KNOTS. BAY WATERS SMOOTH TO A LIGHT CHOP.
SUNDAY
NORTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH TO A LIGHT
CHOP.
SUNDAY NIGHT
NORTHWEST TO NORTH WINDS NEAR 10 KNOTS. BAY
WATERS A LIGHT CHOP. ISOLATED SHOWERS.
GMZ032-035-300245-
BAYSIDE AND GULFSIDE FROM CRAIG KEY TO WEST END OF SEVEN MILE
BRIDGE-
GULF OF AMERICA FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON
SHOAL OUT TO 5 FATHOMS-
1040 AM EDT WED OCT 29 2025
THIS AFTERNOON
NORTH WINDS 10 TO 15 KNOTS, BECOMING NORTHWEST
TO NORTH AND INCREASING TO NEAR 15 KNOTS. SEAS 1 TO 2 FEET, EXCEPT
BUILDING TO 2 TO 3 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE
WATERS A LIGHT TO MODERATE CHOP, BECOMING A MODERATE CHOP.
ISOLATED SHOWERS.
TONIGHT
NORTHWEST WINDS 15 TO 20 KNOTS. SEAS 2 TO 3 FEET.
NEARSHORE WATERS CHOPPY. ISOLATED SHOWERS.
THURSDAY
NORTHWEST WINDS 15 TO 20 KNOTS. SEAS 2 TO 3 FEET.
WEST OF COSGROVE SHOAL LIGHT, SEAS 3 TO 5 FEET, OCCASIONALLY TO
6 FEET, BUILDING TO 5 TO 6 FEET, OCCASIONALLY TO 8 FEET IN THE
AFTERNOON. NEARSHORE WATERS CHOPPY.
THURSDAY NIGHT
NORTHWEST TO NORTH WINDS 15 TO 20 KNOTS,
DECREASING TO 10 TO 15 KNOTS. SEAS 2 TO 3 FEET, EXCEPT 4 TO 5
FEET, OCCASIONALLY TO 6 FEET WEST OF COSGROVE SHOAL LIGHT.
NEARSHORE WATERS CHOPPY, BECOMING A LIGHT TO MODERATE CHOP.
FRIDAY
NORTH WINDS 10 TO 15 KNOTS, DECREASING TO NEAR 10 KNOTS.
SEAS 1 TO 2 FEET, EXCEPT SUBSIDING TO 3 TO 4 FEET, OCCASIONALLY
TO 5 FEET WEST OF COSGROVE SHOAL LIGHT. NEARSHORE WATERS A LIGHT
TO MODERATE CHOP.
FRIDAY NIGHT
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS, DECREASING
TO 5 TO 10 KNOTS. SEAS 1 TO 2 FEET, EXCEPT SUBSIDING TO 2 TO 3
FEET WEST OF COSGROVE SHOAL LIGHT. NEARSHORE WATERS A LIGHT CHOP,
BECOMING SMOOTH TO A LIGHT CHOP.
SATURDAY AND SATURDAY NIGHT
NORTHEAST WINDS 5 TO 10 KNOTS.
SEAS 1 TO 2 FEET. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP.
SUNDAY
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND 1
FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP.
SUNDAY NIGHT
NORTHWEST TO NORTH WINDS NEAR 10 KNOTS, INCREASING
TO 10 TO 15 KNOTS. SEAS AROUND 1 FOOT, BUILDING TO 1 TO 2 FEET.
NEARSHORE WATERS A LIGHT CHOP, BECOMING A LIGHT TO MODERATE CHOP.
ISOLATED SHOWERS.
GMZ042>044-300245-
HAWK CHANNEL FROM OCEAN REEF TO CRAIG KEY OUT TO THE REEF-
HAWK CHANNEL FROM CRAIG KEY TO WEST END OF SEVEN MILE BRIDGE OUT
TO THE REEF-
HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL
OUT TO THE REEF-
1040 AM EDT WED OCT 29 2025
THIS AFTERNOON
NORTH WINDS 10 TO 15 KNOTS, BECOMING NORTHWEST
TO NORTH AND INCREASING TO NEAR 15 KNOTS. SEAS 1 TO 2 FEET, EXCEPT
BUILDING TO 2 TO 3 FEET WEST OF COSGROVE SHOAL LIGHT. NEARSHORE
WATERS A LIGHT TO MODERATE CHOP, BECOMING A MODERATE CHOP.
ISOLATED SHOWERS.
TONIGHT
NORTHWEST WINDS 15 TO 20 KNOTS. SEAS 1 TO 2 FEET,
EXCEPT AROUND 3 FEET WEST OF COSGROVE SHOAL LIGHT. NEARSHORE
WATERS CHOPPY. ISOLATED SHOWERS.
THURSDAY
NORTHWEST WINDS 15 TO 20 KNOTS. SEAS 2 TO 3 FEET.
WEST OF COSGROVE SHOAL LIGHT, SEAS 3 TO 5 FEET, OCCASIONALLY TO
6 FEET, BUILDING TO 5 TO 6 FEET, OCCASIONALLY TO 8 FEET IN THE
AFTERNOON. NEARSHORE WATERS CHOPPY.
THURSDAY NIGHT
NORTHWEST TO NORTH WINDS 15 TO 20 KNOTS,
DECREASING TO 10 TO 15 KNOTS. SEAS 2 TO 3 FEET, EXCEPT 4 TO 5
FEET, OCCASIONALLY TO 6 FEET WEST OF COSGROVE SHOAL LIGHT.
NEARSHORE WATERS CHOPPY, BECOMING A LIGHT TO MODERATE CHOP.
FRIDAY
NORTH WINDS 10 TO 15 KNOTS, DECREASING TO NEAR 10 KNOTS.
SEAS 1 TO 2 FEET, EXCEPT SUBSIDING TO 3 TO 4 FEET, OCCASIONALLY
TO 5 FEET WEST OF COSGROVE SHOAL LIGHT. NEARSHORE WATERS A LIGHT
TO MODERATE CHOP.
FRIDAY NIGHT
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS, DECREASING
TO 5 TO 10 KNOTS. SEAS 1 TO 2 FEET, EXCEPT SUBSIDING TO 2 TO 3
FEET WEST OF COSGROVE SHOAL LIGHT. NEARSHORE WATERS A LIGHT CHOP,
BECOMING SMOOTH TO A LIGHT CHOP.
SATURDAY AND SATURDAY NIGHT
NORTHEAST WINDS 5 TO 10 KNOTS.
SEAS 1 TO 2 FEET. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP.
SUNDAY
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS, INCREASING TO
NEAR 10 KNOTS. SEAS 1 TO 2 FEET. NEARSHORE WATERS SMOOTH TO A
LIGHT CHOP, BECOMING A LIGHT CHOP.
SUNDAY NIGHT
NORTHWEST TO NORTH WINDS NEAR 10 KNOTS, INCREASING
TO 10 TO 15 KNOTS. SEAS 1 TO 2 FEET, BUILDING TO 2 TO 3 FEET.
NEARSHORE WATERS A LIGHT CHOP, BECOMING A LIGHT TO MODERATE CHOP.
ISOLATED SHOWERS.
GMZ052>055-072>075-300245-
STRAITS OF FLORIDA FROM OCEAN REEF TO CRAIG KEY OUT 20 NM-
STRAITS OF FLORIDA FROM CRAIG KEY TO WEST END OF SEVEN MILE
BRIDGE OUT 20 NM-
STRAITS OF FLORIDA FROM WEST END OF SEVEN MILE BRIDGE TO SOUTH OF
HALFMOON SHOAL OUT 20 NM-
STRAITS OF FLORIDA FROM HALFMOON SHOAL TO 20 NM WEST OF DRY
TORTUGAS OUT 20 NM-
STRAITS OF FLORIDA FROM OCEAN REEF TO CRAIG KEY 20 TO 60 NM OUT-
STRAITS OF FLORIDA FROM CRAIG KEY TO WEST END OF SEVEN MILE
BRIDGE 20 TO 60 NM OUT-
STRAITS OF FLORIDA FROM WEST END OF SEVEN MILE BRIDGE TO SOUTH OF
HALFMOON SHOAL 20 TO 60 NM OUT-
STRAITS OF FLORIDA FROM HALFMOON SHOAL TO 20 NM WEST OF DRY
TORTUGAS 20 TO 60 NM OUT-
1040 AM EDT WED OCT 29 2025
..SMALL CRAFT ADVISORY MAY BE REQUIRED TONIGHT
THIS AFTERNOON
NORTH WINDS 10 TO 15 KNOTS, BECOMING NORTHWEST
TO NORTH AND INCREASING TO NEAR 15 KNOTS. SEAS 2 TO 3 FEET,
BUILDING TO 2 TO 4 FEET, OCCASIONALLY TO 5 FEET. WAVE DETAIL:
NORTH 3 FEET AT 5 SECONDS. ISOLATED SHOWERS.
TONIGHT
NORTHWEST WINDS 15 TO 20 KNOTS, INCREASING TO NEAR 20
KNOTS. SEAS 2 TO 4 FEET, OCCASIONALLY TO 5 FEET, BUILDING TO 3 TO
5 FEET, OCCASIONALLY TO 6 FEET. WAVE DETAIL: NORTH 4 FEET AT 5
SECONDS. SCATTERED SHOWERS.
THURSDAY
NORTHWEST WINDS NEAR 20 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET. WAVE DETAIL: NORTHWEST 6 FEET AT 6 SECONDS
AND NORTHEAST 1 FOOT AT 5 SECONDS. ISOLATED SHOWERS.
THURSDAY NIGHT
NORTHWEST WINDS 15 TO 20 KNOTS, BECOMING
NORTHWEST TO NORTH AND DECREASING TO 10 TO 15 KNOTS. SEAS 4 TO 6
FEET, OCCASIONALLY TO 8 FEET, SUBSIDING TO 3 TO 5 FEET,
OCCASIONALLY TO 6 FEET. ISOLATED SHOWERS.
FRIDAY
NORTH TO NORTHEAST WINDS 10 TO 15 KNOTS, DECREASING TO
NEAR 10 KNOTS. SEAS 3 TO 5 FEET, OCCASIONALLY TO 6 FEET,
SUBSIDING TO 2 TO 4 FEET, OCCASIONALLY TO 5 FEET. ISOLATED
SHOWERS.
FRIDAY NIGHT
NORTHEAST WINDS NEAR 10 KNOTS. SEAS 2 TO 4 FEET,
OCCASIONALLY TO 5 FEET, SUBSIDING TO 2 TO 3 FEET. ISOLATED
SHOWERS.
SATURDAY AND SATURDAY NIGHT
NORTHEAST WINDS NEAR 10 KNOTS.
SEAS 2 TO 3 FEET. ISOLATED SHOWERS.
SUNDAY
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO
2 FEET. ISOLATED SHOWERS.
SUNDAY NIGHT
NORTH WINDS 10 TO 15 KNOTS. SEAS 1 TO 2 FEET.
ISOLATED SHOWERS.
GMZ033-034-300245-
GULF OF AMERICA FROM EAST CAPE SABLE TO CHOKOLOSKEE 20 TO 60 NM
OUT AND BEYOND 5 FATHOMS-
GULF OF AMERICA INCLUDING DRY TORTUGAS AND REBECCA SHOAL CHANNEL-
1040 AM EDT WED OCT 29 2025
..SMALL CRAFT ADVISORY MAY BE REQUIRED TONIGHT
THIS AFTERNOON
NORTHWEST TO NORTH WINDS 10 TO 15 KNOTS,
INCREASING TO NEAR 15 KNOTS. SEAS 2 TO 3 FEET, BUILDING TO 3 TO 4,
OCCASIONALLY TO 5 FEET. WAVE DETAIL: NORTHWEST TO NORTH 3 FEET AT
5 SECONDS. ISOLATED SHOWERS.
TONIGHT
NORTHWEST WINDS 15 TO 20 KNOTS, INCREASING TO NEAR 20
KNOTS. SEAS 3 TO 5 FEET, OCCASIONALLY TO 6 FEET, BUILDING TO 4 TO
6 FEET, OCCASIONALLY TO 8 FEET. WAVE DETAIL: NORTHWEST 5 FEET AT
6 SECONDS. SCATTERED SHOWERS.
THURSDAY
NORTHWEST WINDS NEAR 20 KNOTS. SEAS 5 TO 7 FEET,
OCCASIONALLY TO 9 FEET. WAVE DETAIL: NORTHWEST 7 FEET AT
7 SECONDS.
THURSDAY NIGHT
NORTHWEST TO NORTH WINDS 15 TO 20 KNOTS,
DECREASING TO 10 TO 15 KNOTS. SEAS 5 TO 7 FEET, OCCASIONALLY TO 9
FEET, SUBSIDING TO 4 TO 6 FEET. ISOLATED SHOWERS.
FRIDAY
NORTH TO NORTHEAST WINDS 10 TO 15 KNOTS. SEAS SUBSIDING
TO 3 TO 5 FEET, OCCASIONALLY TO 6 FEET.
FRIDAY NIGHT
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS. SEAS 2 TO
4 FEET, OCCASIONALLY TO 5 FEET, SUBSIDING TO 2 TO 3 FEET.
ISOLATED SHOWERS.
SATURDAY
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS. SEAS 2 TO
3 FEET.
SATURDAY NIGHT
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS. SEAS
1 TO 2 FEET. ISOLATED SHOWERS.
SUNDAY
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND
1 FOOT.
SUNDAY NIGHT
NORTHWEST TO NORTH WINDS NEAR 10 KNOTS, INCREASING
TO 10 TO 15 KNOTS. SEAS AROUND 1 TO 2 FEET, BUILDING TO 2 TO 3
FEET. ISOLATED SHOWERS.
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