049
FZUS52 KKEY 170817
CWFKEY
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
417 AM EDT SUN MAY 17 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.
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.
GMZ005-172030-
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS
417 AM EDT SUN MAY 17 2026
SYNOPSIS
HIGH PRESSURE CENTERED JUST NORTH OF BERMUDA WILL
CONTINUE TO PROMOTE SLOWLY FRESHENING MAINLY EAST BREEZES THROUGH
THE REMAINDER OF THE WEEKEND. BREEZES WILL REMAIN MODERATE TO
FRESH THROUGH AT LEAST TUESDAY BEFORE SLOWLY SLACKENING.
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF MAY 12...
35 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY.
9 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS.
6 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST.
7 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY.
6 NM SOUTHEAST OF SOMBRERO KEY LIGHT...OFF MARATHON.
6 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA.
4 NM SOUTHEAST OF MOLASSES REEF LIGHT...OFF KEY LARGO.
3 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 AND RTOFS.
GMZ031-172030-
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND
BUTTONWOOD SOUND-
417 AM EDT SUN MAY 17 2026
TODAY
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS EARLY, INCREASING
TO NEAR 15 KNOTS. BAY WATERS A LIGHT TO MODERATE CHOP, BECOMING A
MODERATE CHOP. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS.
TONIGHT AND MONDAY
EAST WINDS 15 TO 20 KNOTS. BAY WATERS
CHOPPY. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
MONDAY NIGHT
EAST WINDS 15 TO 20 KNOTS, DECREASING TO NEAR 15
KNOTS. BAY WATERS CHOPPY, BECOMING A MODERATE CHOP. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
TUESDAY
EAST WINDS NEAR 15 KNOTS. BAY WATERS A MODERATE CHOP.
A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
TUESDAY NIGHT
EAST WINDS 15 TO 20 KNOTS, DECREASING TO NEAR 15
KNOTS. BAY WATERS CHOPPY, BECOMING A MODERATE CHOP. A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS.
WEDNESDAY
EAST WINDS NEAR 15 KNOTS. BAY WATERS A MODERATE
CHOP. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
WEDNESDAY NIGHT
EAST WINDS 10 TO 15 KNOTS. BAY WATERS A LIGHT
TO MODERATE CHOP. A SLIGHT CHANCE OF SHOWERS.
THURSDAY
EAST WINDS NEAR 10 KNOTS. BAY WATERS A LIGHT CHOP. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
THURSDAY NIGHT
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS. BAY
WATERS A LIGHT TO MODERATE CHOP. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS.
GMZ032-035-172030-
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-
417 AM EDT SUN MAY 17 2026
TODAY
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS, 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. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF THUNDERSTORMS.
TONIGHT THROUGH MONDAY NIGHT
EAST WINDS 15 TO 20 KNOTS. SEAS 2
TO 3 FEET, EXCEPT 3 TO 4 FEET, OCCASIONALLY TO 5 FEET WEST OF THE
MARQUESAS KEYS. NEARSHORE WATERS CHOPPY. A CHANCE OF SHOWERS WITH
A SLIGHT CHANCE OF THUNDERSTORMS.
TUESDAY
EAST WINDS NEAR 15 KNOTS. SEAS 2 TO 3 FEET, SUBSIDING
TO 1 TO 2 FEET. WEST OF THE MARQUESAS KEYS SEAS 3 TO 4 FEET,
OCCASIONALLY TO 5 FEET, SUBSIDING TO 2 TO 3 FEET. NEARSHORE
WATERS A MODERATE CHOP. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF THUNDERSTORMS.
TUESDAY NIGHT
EAST WINDS 15 TO 20 KNOTS, DECREASING TO NEAR 15
KNOTS. SEAS 1 TO 2 FEET, EXCEPT 2 TO 3 FEET WEST OF THE MARQUESAS
KEYS. NEARSHORE WATERS CHOPPY, BECOMING A MODERATE CHOP. A CHANCE
OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
WEDNESDAY
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO
2 FEET, EXCEPT 2 TO 3 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE
WATERS A LIGHT TO MODERATE CHOP. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS.
WEDNESDAY NIGHT
EAST WINDS 10 TO 15 KNOTS, DECREASING TO NEAR
10 KNOTS. SEAS 1 TO 2 FEET, EXCEPT 2 TO 3 FEET WEST OF THE
MARQUESAS KEYS. NEARSHORE WATERS A LIGHT TO MODERATE CHOP,
BECOMING A LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS.
THURSDAY
EAST WINDS NEAR 10 KNOTS. SEAS 1 TO 2 FEET. NEARSHORE
WATERS A LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS.
THURSDAY NIGHT
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS
1 TO 2 FEET. NEARSHORE WATERS A LIGHT TO MODERATE CHOP. A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS.
GMZ042>044-172030-
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-
417 AM EDT SUN MAY 17 2026
TODAY
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS EARLY, INCREASING
TO NEAR 15 KNOTS. SEAS 2 TO 3 FEET. NEARSHORE WATERS A LIGHT TO
MODERATE CHOP, BECOMING A MODERATE CHOP. A CHANCE OF SHOWERS WITH
A SLIGHT CHANCE OF THUNDERSTORMS.
TONIGHT
EAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET,
OCCASIONALLY TO 5 FEET. NEARSHORE WATERS CHOPPY. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
MONDAY AND MONDAY NIGHT
EAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 4
FEET, OCCASIONALLY TO 5 FEET. NEARSHORE WATERS CHOPPY. A CHANCE
OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
TUESDAY
EAST WINDS NEAR 15 KNOTS. SEAS 2 TO 3 FEET. NEARSHORE
WATERS A MODERATE CHOP. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF THUNDERSTORMS.
TUESDAY NIGHT
EAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET,
OCCASIONALLY TO 5 FEET. NEARSHORE WATERS CHOPPY. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
WEDNESDAY
EAST WINDS NEAR 15 KNOTS. SEAS 2 TO 3 FEET.
NEARSHORE WATERS A MODERATE CHOP. A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS.
WEDNESDAY NIGHT
EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.
NEARSHORE WATERS A LIGHT TO MODERATE CHOP. A SLIGHT CHANCE OF
SHOWERS.
THURSDAY
EAST WINDS NEAR 10 KNOTS. SEAS AROUND 2 FEET.
NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS.
THURSDAY NIGHT
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS
2 TO 3 FEET. NEARSHORE WATERS A LIGHT TO MODERATE CHOP. A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS.
GMZ052>055-072>075-172030-
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-
417 AM EDT SUN MAY 17 2026
..SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS
TODAY
EAST WINDS NEAR 15 KNOTS, INCREASING TO 15 TO 20 KNOTS
LATE. SEAS 3 TO 4 FEET, OCCASIONALLY TO 5 FEET. WAVE DETAIL: EAST
4 FEET AT 5 SECONDS. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS.
TONIGHT
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET. WAVE DETAIL: EAST 5 FEET AT 6 SECONDS. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
MONDAY
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 5 FEET,
OCCASIONALLY TO 6 FEET. WAVE DETAIL: EAST 5 FEET AT 6 SECONDS. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
MONDAY NIGHT
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF THUNDERSTORMS.
TUESDAY
EAST WINDS NEAR 15 KNOTS. SEAS 3 TO 5 FEET,
OCCASIONALLY TO 6 FEET. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF THUNDERSTORMS.
TUESDAY NIGHT
EAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 5 FEET,
OCCASIONALLY TO 6 FEET. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF THUNDERSTORMS.
WEDNESDAY
EAST WINDS NEAR 15 KNOTS. SEAS 3 TO 4 FEET,
OCCASIONALLY TO 5 FEET. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF THUNDERSTORMS.
WEDNESDAY NIGHT
EAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 4 FEET,
OCCASIONALLY TO 5 FEET. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS.
THURSDAY
EAST WINDS NEAR 10 KNOTS. SEAS 2 TO 3 FEET.
THURSDAY NIGHT
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS
2 TO 4 FEET, OCCASIONALLY TO 5 FEET. A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS.
GMZ033-034-172030-
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-
417 AM EDT SUN MAY 17 2026
TODAY
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS, INCREASING TO
NEAR 15 KNOTS. SEAS AROUND 2 FEET, BUILDING TO 2 TO 3 FEET. WAVE
DETAIL: EAST TO SOUTHEAST 2 FEET AT 4 SECONDS. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
TONIGHT
EAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET,
OCCASIONALLY TO 5 FEET. WAVE DETAIL: EAST 4 FEET AT 5 SECONDS. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
MONDAY
EAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET,
OCCASIONALLY TO 5 FEET. WAVE DETAIL: EAST 4 FEET AT 5 SECONDS. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
MONDAY NIGHT
EAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 4 FEET,
OCCASIONALLY TO 5 FEET. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF THUNDERSTORMS.
TUESDAY
EAST WINDS NEAR 15 KNOTS, DECREASING TO 10 TO 15
KNOTS. SEAS 2 TO 4 FEET, OCCASIONALLY TO 5 FEET. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
TUESDAY NIGHT
EAST WINDS NEAR 15 KNOTS. SEAS 2 TO 3 FEET. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
WEDNESDAY
EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
WEDNESDAY NIGHT
EAST WINDS 10 TO 15 KNOTS, DECREASING TO NEAR
10 KNOTS. SEAS 2 TO 3 FEET. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS.
THURSDAY
EAST WINDS 5 TO 10 KNOTS. SEAS AROUND 2 FEET,
SUBSIDING TO 1 TO 2 FEET. A SLIGHT CHANCE OF SHOWERS.
THURSDAY NIGHT
EAST TO SOUTHEAST WINDS NEAR 10 KNOTS. SEAS
BUILDING TO AROUND 2 FEET. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS.
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