854
FZUS52 KKEY 251447
CWFKEY
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
1047 AM EDT FRI SEP 25 2026
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.
THE WAVE DETAIL SECTION HIGHLIGHTS THE PERIOD AND DIRECTION OF
ORIGIN FOR THE HIGHEST-ENERGY WAVES, AS WELL AS ANY LONG-PERIOD
SWELLS MOVING IN A DIFFERENT DIRECTION THAN THE WIND.
GMZ005-260300-
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS
1047 AM EDT FRI SEP 25 2026
SYNOPSIS
AN EARLY SEASON COLD FRONT WILL CONTINUE TO PUSH SOUTHWARD THROUGH
THE STRAITS OF FLORIDA THIS AFTERNOON. GENTLE TO MODERATE NORTH TO
NORTHEAST BREEZES WILL GRADUALLY SLACKEN IN THE WAKE OF THE FRONT,
BECOMING LIGHT TO GENTLE OVER THE WEEKEND. A NOR'EASTER OFF THE
EASTERN SEABOARD WILL SUPPORT A NORTHEASTERLY SWELL IN THE EASTERN
MARINE ZONES THROUGH SUNDAY. THE FRONT WILL PUSH BACK NORTHWARD
LATE SUNDAY NIGHT THROUGH THE MARINE ZONES. WINDS WILL THEN CLOCK
BACK AROUND TO THE SOUTHEAST FOR EARLY NEXT WEEK, ALSO
ACCOMPANIED BY INCREASING RAIN AND THUNDER CHANCES.
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF SEPTEMBER
15, 2026...
64 NM SOUTH-SOUTHEAST OF DRY TORTUGAS LIGHT, ON LOGGERHEAD KEY
40 NM SOUTH-SOUTHEAST OF COSGROVE SHOAL LIGHT, OFF THE MARQUESAS KEYS
36 NM SOUTH-SOUTHEAST OF SAND KEY LIGHT, OFF KEY WEST
35 NM SOUTHEAST OF LOOE KEY, OFF BIG PINE KEY
28 NM SOUTHEAST OF SOMBRERO KEY LIGHT, OFF MARATHON
15 NM EAST-SOUTHEAST OF ALLIGATOR REEF LIGHT, OFF ISLAMORADA
8 NM EAST-SOUTHEAST OF MOLASSES REEF LIGHT, OFF KEY LARGO
5 NM EAST-SOUTHEAST OF CARYSFORT REEF LIGHT, OFF OCEAN REEF
GULF STREAM INFORMATION COURTESY OF THE NAVAL OCEANOGRAPHIC OFFICE.
GMZ031-260300-
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND
BUTTONWOOD SOUND-
1047 AM EDT FRI SEP 25 2026
THIS AFTERNOON
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS,
DECREASING TO 5 TO 10 KNOTS. BAY WATERS A LIGHT CHOP, BECOMING
SMOOTH TO A LIGHT CHOP. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF THUNDERSTORMS.
TONIGHT
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS, INCREASING TO
NEAR 10 KNOTS. BAY WATERS SMOOTH TO A LIGHT CHOP, BECOMING A LIGHT
CHOP. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
SATURDAY
NORTHEAST WINDS 5 TO 10 KNOTS, DECREASING TO NEAR 5
KNOTS. BAY WATERS SMOOTH TO A LIGHT CHOP, BECOMING SMOOTH. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
SATURDAY NIGHT
NORTHWEST TO NORTH WINDS 5 TO 10 KNOTS,
BECOMING NORTHEAST. BAY WATERS SMOOTH TO A LIGHT CHOP.
SUNDAY
NORTHEAST WINDS NEAR 5 TO 10 KNOTS, DECREASING TO NEAR 5
KNOTS. BAY WATERS SMOOTH TO A LIGHT CHOP, BECOMING SMOOTH.
SUNDAY NIGHT
LIGHT AND VARIABLE WINDS. BAY WATERS SMOOTH.
MONDAY
NORTHEAST TO EAST WINDS NEAR 5 KNOTS, BECOMING
SOUTHEAST TO SOUTH. BAY WATERS SMOOTH. A CHANCE OF SHOWERS AND
THUNDERSTORMS.
MONDAY NIGHT
SOUTHEAST WINDS NEAR 5 KNOTS. BAY WATERS SMOOTH.
A CHANCE OF SHOWERS AND THUNDERSTORMS.
TUESDAY
SOUTHEAST WINDS NEAR 5 KNOTS. BAY WATERS SMOOTH.
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS.
TUESDAY NIGHT
EAST TO SOUTHEAST WINDS 5 TO 10 KNOTS. BAY
WATERS SMOOTH TO A LIGHT CHOP. SHOWERS LIKELY WITH A CHANCE OF
THUNDERSTORMS.
GMZ032-035-260300-
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-
1047 AM EDT FRI SEP 25 2026
THIS AFTERNOON
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS,
DECREASING TO 5 TO 10 KNOTS. SEAS 1 TO 2 FEET. NEARSHORE WATERS A
LIGHT CHOP, BECOMING SMOOTH TO A LIGHT CHOP. A SLIGHT CHANCE OF
SHOWERS.
TONIGHT
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. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS.
SATURDAY
NORTHEAST WINDS NEAR 10 KNOTS, BECOMING NORTHWEST AND
DECREASING TO 5 TO 10 KNOTS. SEAS 1 TO 2 FEET, SUBSIDING TO
AROUND 1 FOOT. NEARSHORE WATERS A LIGHT CHOP, BECOMING SMOOTH TO A
LIGHT CHOP.
SATURDAY NIGHT
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1
FOOT OR LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP.
SUNDAY
NORTHEAST WINDS 5 TO 10 KNOTS, BECOMING NORTHWEST AND
DECREASING TO NEAR 5 KNOTS. SEAS 1 FOOT OR LESS. NEARSHORE WATERS
SMOOTH TO A LIGHT CHOP, BECOMING SMOOTH.
SUNDAY NIGHT
NORTHEAST TO EAST WINDS NEAR 5 KNOTS, BECOMING
LIGHT AND VARIABLE. SEAS 1 FOOT OR LESS. NEARSHORE WATERS SMOOTH.
MONDAY
EAST WINDS NEAR 5 KNOTS, BECOMING SOUTHEAST. SEAS 1
FOOT OR LESS. NEARSHORE WATERS SMOOTH. A CHANCE OF SHOWERS AND
THUNDERSTORMS.
MONDAY NIGHT
SOUTHEAST TO SOUTH WINDS NEAR 5 KNOTS. SEAS
1 FOOT OR LESS. NEARSHORE WATERS SMOOTH. A CHANCE OF SHOWERS AND
THUNDERSTORMS.
TUESDAY
SOUTH TO SOUTHEAST WINDS NEAR 5 KNOTS. SEAS 1 FOOT OR
LESS. NEARSHORE WATERS SMOOTH. SHOWERS LIKELY WITH A CHANCE OF
THUNDERSTORMS.
TUESDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR
LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SHOWERS LIKELY WITH
A CHANCE OF THUNDERSTORMS.
GMZ042>044-260300-
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-
1047 AM EDT FRI SEP 25 2026
THIS AFTERNOON
NORTH WINDS 10 TO 15 KNOTS, DECREASING TO NEAR
10 KNOTS. SEAS 1 TO 2 FEET, EXCEPT 2 TO 3 FEET WEST OF COSGROVE
SHOAL LIGHT. NEARSHORE WATERS A LIGHT TO MODERATE CHOP, BECOMING
A LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
TONIGHT
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. A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS.
SATURDAY
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO
2 FEET. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. A SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS.
SATURDAY NIGHT
NORTH WINDS 5 TO 10 KNOTS. SEAS 1 TO 2 FEET,
SUBSIDING TO AROUND 1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT
CHOP.
SUNDAY
NORTH WINDS NEAR 5 KNOTS. SEAS AROUND 1 FOOT. NEARSHORE
WATERS SMOOTH. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
SUNDAY NIGHT
NORTHEAST TO EAST WINDS NEAR 5 KNOTS, BECOMING
SOUTHEAST. SEAS 1 FOOT OR LESS. NEARSHORE WATERS SMOOTH.
MONDAY
EAST TO SOUTHEAST WINDS NEAR 5 KNOTS. SEAS 1 FOOT OR
LESS. NEARSHORE WATERS SMOOTH. A CHANCE OF SHOWERS AND
THUNDERSTORMS.
MONDAY NIGHT
SOUTHEAST TO SOUTH WINDS NEAR 5 KNOTS. SEAS
1 FOOT OR LESS. NEARSHORE WATERS SMOOTH. SHOWERS LIKELY WITH A
CHANCE OF THUNDERSTORMS.
TUESDAY
SOUTHEAST TO SOUTH WINDS NEAR 5 KNOTS. SEAS 1 FOOT OR
LESS. NEARSHORE WATERS SMOOTH. SHOWERS LIKELY WITH A CHANCE OF
THUNDERSTORMS.
TUESDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND
1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SHOWERS LIKELY
WITH A CHANCE OF THUNDERSTORMS.
GMZ052>055-072>075-260300-
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-
1047 AM EDT FRI SEP 25 2026
THIS AFTERNOON
NORTH TO NORTHEAST WINDS 10 TO 15 KNOTS,
DECREASING TO NEAR 10 KNOTS. SEAS 2 TO 3 FEET, EXCEPT 3 TO 5 FEET
OFF OF THE UPPER KEYS DUE TO A NORTHERLY SWELL. WAVE DETAIL:
NORTH 1 FOOT AT 3 SECONDS. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS.
TONIGHT
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 2 TO
3 FEET, EXCEPT 3 TO 5 FEET OFF OF THE UPPER KEYS DUE TO A
NORTHERLY SWELL. WAVE DETAIL: NORTHEAST 2 FEET AT 9 SECONDS. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
SATURDAY
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS, DECREASING TO
NEAR 5 KNOTS. SEAS 2 TO 3 FEET, EXCEPT 3 TO 5 FEET IN A NORTHERLY
SWELL OFF OF THE UPPER KEYS. WAVE DETAIL: NORTHEAST 2 FEET AT 9
SECONDS. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
SATURDAY NIGHT
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1
TO 2 FEET, EXCEPT 2 TO 3 FEET DUE TO A NORTH SWELL OFF OF THE
UPPER KEYS. A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
SUNDAY
NORTH WINDS NEAR 5 KNOTS. SEAS 1 TO 2 FEET, EXCEPT 2 TO
3 FEET IN A NORTH SWELL OFF OF THE UPPER KEYS. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS.
SUNDAY NIGHT
NORTHEAST TO EAST WINDS NEAR 5 KNOTS, BECOMING
SOUTHEAST. SEAS 1 TO 2 FEET. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS.
MONDAY
SOUTHEAST WINDS NEAR 5 KNOTS. SEAS 1 TO 2 FEET,
SUBSIDING TO AROUND 1 FOOT. A CHANCE OF SHOWERS AND
THUNDERSTORMS.
MONDAY NIGHT
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS. SEAS
AROUND 1 FOOT. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS.
TUESDAY
SOUTHEAST WINDS NEAR 5 KNOTS. SEAS AROUND 1 FOOT.
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS.
TUESDAY NIGHT
EAST TO SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS
AROUND 1 FOOT, BUILDING TO 1 TO 2 FEET. SHOWERS LIKELY WITH A
CHANCE OF THUNDERSTORMS.
GMZ033-034-260300-
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-
1047 AM EDT FRI SEP 25 2026
THIS AFTERNOON
NORTH TO NORTHEAST WINDS NEAR 15 KNOTS,
DECREASING TO 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. WAVE DETAIL:
NORTH 3 FEET AT 5 SECONDS. A SLIGHT CHANCE OF SHOWERS.
TONIGHT
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS, INCREASING TO
10 TO 15 KNOTS. SEAS AROUND 2 FEET. WAVE DETAIL: NORTHWEST TO
NORTH 2 FEET AT 5 SECONDS.
SATURDAY
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS, DECREASING TO
5 TO 10 KNOTS. SEAS AROUND 2 FEET, SUBSIDING TO 1 TO 2 FEET. WAVE
DETAIL: NORTH 2 FEET AT 4 SECONDS.
SATURDAY NIGHT
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. SEAS
1 TO 2 FEET.
SUNDAY
NORTHEAST WINDS NEAR 5 KNOTS. SEAS AROUND 1 FOOT.
SUNDAY NIGHT
NORTHEAST TO EAST WINDS NEAR 5 KNOTS. SEAS AROUND
1 FOOT.
MONDAY
EAST TO SOUTHEAST WINDS NEAR 5 KNOTS. SEAS 1 FOOT OR
LESS. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
MONDAY NIGHT
SOUTHEAST TO SOUTH WINDS NEAR 5 KNOTS. SEAS
1 FOOT OR LESS. A CHANCE OF SHOWERS AND THUNDERSTORMS.
TUESDAY
SOUTHEAST WINDS NEAR 5 KNOTS. SEAS 1 FOOT OR LESS.
SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS.
TUESDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR
LESS. SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS.
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