163
FZUS52 KKEY 071428
CWFKEY
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
1028 AM EDT TUE APR 7 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.
GMZ005-080230-
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS
1028 AM EDT TUE APR 7 2026
SYNOPSIS
A FRONTAL BOUNDARY STALLED NORTH OF THE FLORIDA KEYS
WILL BE RESPONSIBLE FOR LIGHT TO VARIABLE BREEZES, AND SCATTERED
TO NUMEROUS SHOWERS ACROSS THE NEARSHORE WATERS. HOWEVER, SEAS
WILL BE ELEVATED ACROSS WESTERN MARINE ZONES DUE TO A NORTHWEST
SWELL. THUNDERSTORM CHANCES ARE EXPECTED TO DECREASE WEDNESDAY.
BREEZES ARE FORECAST TO FRESHEN LATE IN THE WEEK TO THE WEEKEND,
BUT CONFIDENCE IS LOW WITH REGARD TO TIMING DUE TO UNCERTAINTY IN
WHERE AND WHEN THE FRONTAL BOUNDARY MOVES SOUTH OF THE KEYS.
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF APRIL
4...
19 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY.
23 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS.
33 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST.
39 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY.
23 NM SOUTHEAST OF SOMBRERO KEY LIGHT...OFF MARATHON.
15 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA.
10 NM SOUTHEAST OF MOLASSES REEF LIGHT...OFF KEY LARGO.
6 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.
GMZ031-080230-
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND
BUTTONWOOD SOUND-
1028 AM EDT TUE APR 7 2026
THIS AFTERNOON
VARIABLE WINDS NEAR 5 KNOTS, BECOMING WEST TO
NORTHWEST AND INCREASING TO 5 TO 10 KNOTS. BAY WATERS SMOOTH,
BECOMING SMOOTH TO A LIGHT CHOP. A CHANCE OF SHOWERS AND
THUNDERSTORMS.
TONIGHT
NORTHWEST TO NORTH WINDS NEAR 10 KNOTS. BAY WATERS A
LIGHT CHOP. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS.
WEDNESDAY
NORTHWEST TO NORTH WINDS 5 TO 10 KNOTS, BECOMING
WEST. BAY WATERS SMOOTH TO A LIGHT CHOP. A CHANCE OF SHOWERS WITH
A SLIGHT CHANCE OF THUNDERSTORMS.
WEDNESDAY NIGHT
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. BAY
WATERS SMOOTH TO A LIGHT CHOP. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS.
THURSDAY
NORTHEAST WINDS NEAR 10 KNOTS, INCREASING TO 10 TO 15
KNOTS. BAY WATERS A LIGHT CHOP, BECOMING A LIGHT TO MODERATE
CHOP. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
THURSDAY NIGHT
NORTHEAST WINDS NEAR 15 KNOTS, INCREASING TO 15
TO 20 KNOTS. BAY WATERS A MODERATE CHOP, BECOMING CHOPPY. A
SLIGHT CHANCE OF SHOWERS.
FRIDAY
NORTHEAST WINDS 15 TO 20 KNOTS. BAY WATERS CHOPPY. A
SLIGHT CHANCE OF SHOWERS.
FRIDAY NIGHT
NORTHEAST WINDS 15 TO 20 KNOTS. BAY WATERS
CHOPPY. A SLIGHT CHANCE OF SHOWERS.
SATURDAY
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS. BAY WATERS
CHOPPY. A SLIGHT CHANCE OF SHOWERS.
SATURDAY NIGHT
NORTHEAST TO EAST WINDS NEAR 20 KNOTS,
INCREASING TO 20 TO 25 KNOTS. BAY WATERS ROUGH, BECOMING VERY
ROUGH.
GMZ032-035-080230-
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-
1028 AM EDT TUE APR 7 2026
THIS AFTERNOON
VARIABLE WINDS NEAR 5 KNOTS, BECOMING WEST TO
NORTHWEST AND INCREASING TO 5 TO 10 KNOTS. SEAS 1 TO 2 FEET,
EXCEPT BUILDING TO 2 TO 3 FEET WEST OF THE MARQUESAS KEYS DUE TO
NORTHWEST SWELL. NEARSHORE WATERS SMOOTH, BECOMING SMOOTH TO A
LIGHT CHOP. A CHANCE OF SHOWERS AND THUNDERSTORMS.
TONIGHT
NORTHWEST TO NORTH WINDS 10 TO 15 KNOTS. SEAS 1 TO 2
FEET, EXCEPT 2 TO 3 FEET WEST OF THE MARQUESAS KEYS DUE TO
NORTHWEST SWELL. NEARSHORE WATERS A LIGHT TO MODERATE CHOP. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
WEDNESDAY
NORTHWEST TO NORTH WINDS DECREASING TO 5 TO 10
KNOTS. SEAS 1 TO 2 FEET, EXCEPT 3 TO 4 FEET WEST OF THE MARQUESAS
KEYS DUE TO NORTHWEST SWELL. NEARSHORE WATERS BECOMING SMOOTH TO
A LIGHT CHOP. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS.
WEDNESDAY NIGHT
NORTH TO NORTHEAST WINDS INCREASING TO 10 TO
15 KNOTS. SEAS 1 TO 2 FEET, EXCEPT 3 TO 4 FEET WEST OF THE
MARQUESAS KEYS DUE TO NORTHWEST SWELL. NEARSHORE WATERS BECOMING A
LIGHT TO MODERATE CHOP. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF THUNDERSTORMS.
THURSDAY
NORTHEAST 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.
THURSDAY NIGHT
NORTHEAST WINDS INCREASING TO 15 TO 20 KNOTS.
SEAS 2 TO 3 FEET, EXCEPT 3 TO 4 FEET WEST OF THE MARQUESAS KEYS.
NEARSHORE WATERS BECOMING CHOPPY. A SLIGHT CHANCE OF SHOWERS.
FRIDAY
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 3 FEET,
EXCEPT 4 TO 5 FEET, OCCASIONALLY TO 6 FEET WEST OF THE MARQUESAS
KEYS. NEARSHORE WATERS CHOPPY. A SLIGHT CHANCE OF SHOWERS.
FRIDAY NIGHT
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 3 FEET.
NEARSHORE WATERS CHOPPY. A SLIGHT CHANCE OF SHOWERS.
SATURDAY
NORTHEAST TO 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 SLIGHT CHANCE OF
SHOWERS.
SATURDAY NIGHT
NORTHEAST TO EAST WINDS INCREASING TO 20 TO 25
KNOTS. SEAS 2 TO 3 FEET. NEARSHORE WATERS BECOMING VERY ROUGH.
GMZ042>044-080230-
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-
1028 AM EDT TUE APR 7 2026
THIS AFTERNOON
VARIABLE WINDS 5 TO 10 KNOTS, BECOMING
SOUTHWEST TO WEST. SEAS AROUND 1 FOOT, EXCEPT BUILDING TO 2 TO 3
FEET WEST OF COSGROVE SHOAL LIGHT DUE TO NORTHWEST SWELL.
NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. A CHANCE OF SHOWERS AND
THUNDERSTORMS.
TONIGHT
NORTHWEST TO NORTH WINDS 10 TO 15 KNOTS. SEAS 1 TO 2
FEET, EXCEPT BUILDING TO 3 TO 4 FEET WEST OF COSGROVE SHOAL LIGHT
DUE TO NORTHWEST SWELL. NEARSHORE WATERS A LIGHT TO MODERATE
CHOP. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
WEDNESDAY
NORTHWEST TO NORTH WINDS 5 TO 10 KNOTS. SEAS 1 TO
2 FEET, EXCEPT 3 TO 4 FEET, OCCASIONALLY TO 5 FEET WEST OF
COSGROVE SHOAL LIGHT. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
WEDNESDAY NIGHT
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS,
DECREASING TO 5 TO 10 KNOTS. SEAS 1 TO 2 FEET, EXCEPT 3 TO 4
FEET, OCCASIONALLY TO 5 FEET WEST OF COSGROVE SHOAL LIGHT.
NEARSHORE WATERS A LIGHT CHOP, BECOMING SMOOTH TO A LIGHT CHOP. A
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
THURSDAY
NORTHEAST WINDS 5 TO 10 KNOTS, INCREASING TO NEAR 10
KNOTS. SEAS 1 TO 2 FEET, EXCEPT 3 TO 4 FEET, OCCASIONALLY TO 5
FEET WEST OF COSGROVE SHOAL LIGHT. NEARSHORE WATERS SMOOTH TO A
LIGHT CHOP, BECOMING A LIGHT CHOP. A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS.
THURSDAY NIGHT
NORTHEAST WINDS INCREASING TO 15 TO 20 KNOTS.
SEAS 2 TO 3 FEET. NEARSHORE WATERS BECOMING CHOPPY. A SLIGHT
CHANCE OF SHOWERS.
FRIDAY
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET,
OCCASIONALLY TO 5 FEET. NEARSHORE WATERS CHOPPY. A SLIGHT CHANCE
OF SHOWERS.
FRIDAY NIGHT
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS. SEAS 2 TO
3 FEET. NEARSHORE WATERS CHOPPY. A SLIGHT CHANCE OF SHOWERS.
SATURDAY
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS. SEAS 2 TO
3 FEET. NEARSHORE WATERS CHOPPY. A SLIGHT CHANCE OF SHOWERS.
SATURDAY NIGHT
NORTHEAST TO EAST WINDS NEAR 20 KNOTS,
INCREASING TO 20 TO 25 KNOTS. SEAS 2 TO 4 FEET, OCCASIONALLY TO 5
FEET. NEARSHORE WATERS ROUGH, BECOMING VERY ROUGH.
GMZ052>055-072>075-080230-
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-
1028 AM EDT TUE APR 7 2026
THIS AFTERNOON
VARIABLE WINDS NEAR 5 KNOTS, BECOMING WEST TO
NORTHWEST. SEAS 1 TO 2 FEET. WAVE DETAIL: WEST TO NORTHWEST 1 FOOT
AT 3 SECONDS AND EAST 1 FOOT AT 4 SECONDS. A CHANCE OF SHOWERS
AND THUNDERSTORMS.
TONIGHT
NORTHWEST TO NORTH WINDS NEAR 10 KNOTS. SEAS 2 TO 3
FEET. WAVE DETAIL: NORTHWEST 2 FEET AT 5 SECONDS AND EAST 1 FOOT
AT 4 SECONDS. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS.
WEDNESDAY
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS. SEAS 2 TO 4
FEET, OCCASIONALLY TO 5 FEET. WAVE DETAIL: NORTHWEST 3 FEET AT 8
SECONDS AND NORTH TO NORTHEAST 3 FEET AT 11 SECONDS. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
WEDNESDAY NIGHT
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. SEAS
2 TO 4 FEET, OCCASIONALLY TO 5 FEET. A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS.
THURSDAY
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS, INCREASING TO
NEAR 10 KNOTS. SEAS 2 TO 4 FEET, OCCASIONALLY TO 5 FEET. A CHANCE
OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
THURSDAY NIGHT
NORTHEAST WINDS NEAR 15 KNOTS, INCREASING TO 15
TO 20 KNOTS. SEAS 3 TO 5 FEET, OCCASIONALLY TO 6 FEET. A SLIGHT
CHANCE OF SHOWERS.
FRIDAY
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET. A SLIGHT CHANCE OF SHOWERS.
FRIDAY NIGHT
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS. SEAS 3 TO
5 FEET, OCCASIONALLY TO 6 FEET. A SLIGHT CHANCE OF SHOWERS.
SATURDAY
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS. SEAS 3 TO
5 FEET, OCCASIONALLY TO 6 FEET. A SLIGHT CHANCE OF SHOWERS.
SATURDAY NIGHT
NORTHEAST TO EAST WINDS NEAR 20 KNOTS,
INCREASING TO 20 TO 25 KNOTS. SEAS 3 TO 5 FEET, OCCASIONALLY TO 6
FEET. A SLIGHT CHANCE OF SHOWERS.
GMZ033-034-080230-
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-
1028 AM EDT TUE APR 7 2026
THIS AFTERNOON
VARIABLE WINDS NEAR 5 KNOTS, BECOMING NORTHWEST
TO NORTH AND INCREASING TO NEAR 10 KNOTS. SEAS 1 TO 2 FEET,
BUILDING TO 2 TO 3 FEET. WAVE DETAIL: NORTHWEST TO NORTH 2 FEET AT
7 SECONDS, BECOMING NORTHWEST 3 FEET AT 7 SECONDS. SHOWERS LIKELY
WITH A CHANCE OF THUNDERSTORMS.
TONIGHT
NORTH TO NORTHEAST WINDS INCREASING TO 15 TO 20 KNOTS.
SEAS 2 TO 4 FEET, OCCASIONALLY TO 5 FEET, BUILDING TO 4 TO 6
FEET, OCCASIONALLY TO 8 FEET. WAVE DETAIL: NORTHWEST TO NORTH 4
FEET AT 7 SECONDS, BECOMING NORTHWEST TO NORTH 5 FEET AT 7
SECONDS. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS.
WEDNESDAY
NORTH TO NORTHEAST WINDS NEAR 15 KNOTS, DECREASING TO
10 TO 15 KNOTS. SEAS 3 TO 5 FEET, OCCASIONALLY TO 6 FEET. WAVE
DETAIL: NORTHWEST TO NORTH 5 FEET AT 7 SECONDS. A CHANCE OF
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS.
WEDNESDAY NIGHT
NORTHEAST WINDS INCREASING TO 15 TO 20 KNOTS.
SEAS 3 TO 5 FEET, OCCASIONALLY TO 6 FEET. A CHANCE OF SHOWERS
WITH A SLIGHT CHANCE OF THUNDERSTORMS.
THURSDAY
NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 3 TO 5 FEET,
OCCASIONALLY TO 6 FEET. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS.
THURSDAY NIGHT
NORTHEAST WINDS INCREASING TO 15 TO 20 KNOTS.
SEAS 3 TO 5 FEET, OCCASIONALLY TO 6 FEET. A SLIGHT CHANCE OF
SHOWERS.
FRIDAY
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 5 FEET,
OCCASIONALLY TO 6 FEET. A SLIGHT CHANCE OF SHOWERS.
FRIDAY NIGHT
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET,
OCCASIONALLY TO 5 FEET. A SLIGHT CHANCE OF SHOWERS.
SATURDAY
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS, BECOMING
10 TO 15 KNOTS IN THE AFTERNOON. SEAS 2 TO 4 FEET, OCCASIONALLY
TO 5 FEET. A SLIGHT CHANCE OF SHOWERS.
SATURDAY NIGHT
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS. SEAS
2 TO 4 FEET, OCCASIONALLY TO 5 FEET.
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