612
FZUS52 KKEY 280828
CWFKEY
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
428 AM EDT TUE APR 28 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.
GMZ005-282030-
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS
428 AM EDT TUE APR 28 2026
SYNOPSIS
HIGH PRESSURE CENTERED OVER THE MID-ATLANTIC WILL
CONTINUE TO PROMOTE GENTLE TO MODERATE NORTHEAST TO EAST BREEZES
THROUGH TONIGHT. AS THE HIGH SLIDES INTO THE WESTERN NORTH
ATLANTIC THROUGH MID-WEEK, BREEZES WILL GRADUALLY VEER TO THE EAST
TO SOUTHEAST. MULTIPLE LOW PRESSURE SYSTEMS ARE EXPECTED TO
TRAVERSE ACROSS THE EASTERN U.S. MID TO LATE WEEK. THIS COMBINED
WITH WEAK LOW PRESSURE ACROSS THE WESTERN NORTH ATLANTIC WILL
RESULT IN A PERIOD OF MAINLY SOUTHEAST TO SOUTH BREEZES.
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF APRIL 22...
19 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY.
11 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS.
8 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST.
13 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY.
19 NM SOUTHEAST OF SOMBRERO KEY LIGHT...OFF MARATHON.
24 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA.
26 NM SOUTHEAST OF MOLASSES REEF LIGHT...OFF KEY LARGO.
14 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.
GMZ031-282030-
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND
BUTTONWOOD SOUND-
428 AM EDT TUE APR 28 2026
TODAY
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS, BECOMING EAST AND
DECREASING TO NEAR 10 KNOTS THIS AFTERNOON. BAY WATERS A LIGHT TO
MODERATE CHOP, BECOMING A LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS.
TONIGHT
EAST WINDS 10 TO 15 KNOTS, BECOMING EAST TO SOUTHEAST
AND DECREASING TO NEAR 10 KNOTS. BAY WATERS A LIGHT TO MODERATE
CHOP, BECOMING A LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS.
WEDNESDAY
EAST TO SOUTHEAST WINDS NEAR 10 KNOTS, BECOMING
SOUTHEAST TO SOUTH. BAY WATERS A LIGHT CHOP.
WEDNESDAY NIGHT
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS. BAY
WATERS SMOOTH TO A LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS.
THURSDAY
SOUTH WINDS NEAR 5 KNOTS, BECOMING SOUTH TO SOUTHWEST
AND INCREASING TO NEAR 10 KNOTS IN THE AFTERNOON. BAY WATERS
SMOOTH, BECOMING A LIGHT CHOP.
THURSDAY NIGHT
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS, BECOMING
SOUTH AND DECREASING TO NEAR 5 KNOTS. BAY WATERS SMOOTH TO A
LIGHT CHOP, BECOMING SMOOTH.
FRIDAY
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH TO A LIGHT
CHOP.
FRIDAY NIGHT
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS,
INCREASING TO 10 TO 15 KNOTS AFTER MIDNIGHT. BAY WATERS SMOOTH TO
A LIGHT CHOP, BECOMING A LIGHT TO MODERATE CHOP.
SATURDAY
SOUTHEAST TO SOUTH WINDS NEAR 15 KNOTS, BECOMING SOUTH
AND DECREASING TO NEAR 10 KNOTS. BAY WATERS A MODERATE CHOP,
BECOMING A LIGHT CHOP.
SATURDAY NIGHT
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS. BAY
WATERS SMOOTH TO A LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS.
GMZ032-035-282030-
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-
428 AM EDT TUE APR 28 2026
TODAY
NORTHEAST TO EAST WINDS NEAR 15 KNOTS, BECOMING EAST AND
DECREASING TO NEAR 10 KNOTS. SEAS 1 TO 2 FEET, EXCEPT AROUND 2
FEET WEST OF THE MARQUESAS KEYS. NEARSHORE WATERS A MODERATE CHOP,
BECOMING A LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS.
TONIGHT
EAST WINDS 10 TO 15 KNOTS, BECOMING EAST TO SOUTHEAST
AND DECREASING TO NEAR 10 KNOTS. SEAS 1 TO 2 FEET. NEARSHORE
WATERS A LIGHT TO MODERATE CHOP, BECOMING A LIGHT CHOP. A SLIGHT
CHANCE OF SHOWERS.
WEDNESDAY
EAST TO SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING
SOUTHEAST. SEAS AROUND 1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT
CHOP.
WEDNESDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING
SOUTHEAST TO SOUTH. SEAS AROUND 1 FOOT. NEARSHORE WATERS SMOOTH
TO A LIGHT CHOP.
THURSDAY
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTH.
SEAS AROUND 1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP.
THURSDAY NIGHT
WEST TO NORTHWEST WINDS NEAR 5 KNOTS, BECOMING
SOUTHEAST AFTER MIDNIGHT. SEAS 1 FOOT OR LESS. NEARSHORE WATERS
SMOOTH.
FRIDAY
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS. SEAS AROUND 1
FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP.
FRIDAY NIGHT
EAST TO SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING
SOUTHEAST TO SOUTH AND INCREASING TO NEAR 15 KNOTS AFTER
MIDNIGHT. SEAS AROUND 1 FOOT, BUILDING 1 TO 2 FEET, EXCEPT
BUILDING TO 2 TO 3 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE
WATERS SMOOTH TO A LIGHT CHOP, BECOMING A MODERATE CHOP.
SATURDAY
SOUTHEAST TO SOUTH WINDS NEAR 15 KNOTS, BECOMING SOUTH
AND DECREASING TO 5 TO 10 KNOTS. SEAS 1 TO 2 FEET, SUBSIDING TO
AROUND 1 FOOT. WEST OF THE MARQUESAS KEYS, SEAS 2 TO 3 FEET,
SUBSIDING TO 1 TO 2 FEET. NEARSHORE WATERS A MODERATE CHOP,
BECOMING SMOOTH TO A LIGHT CHOP.
SATURDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING SOUTH
AND INCREASING TO 10 TO 15 KNOTS. SEAS AROUND 1 FOOT, EXCEPT
AROUND 2 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE WATERS SMOOTH
TO A LIGHT CHOP, BECOMING A LIGHT TO MODERATE CHOP. A SLIGHT
CHANCE OF SHOWERS.
GMZ042>044-282030-
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-
428 AM EDT TUE APR 28 2026
TODAY
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS, BECOMING EAST AND
DECREASING TO NEAR 10 KNOTS. SEAS 1 TO 2 FEET. NEARSHORE WATERS A
LIGHT TO MODERATE CHOP, BECOMING A LIGHT CHOP. A SLIGHT CHANCE OF
SHOWERS.
TONIGHT
EAST WINDS 10 TO 15 KNOTS, BECOMING EAST TO SOUTHEAST
AND DECREASING TO NEAR 10 KNOTS. SEAS 1 TO 2 FEET. NEARSHORE
WATERS A LIGHT TO MODERATE CHOP, BECOMING A LIGHT CHOP. A SLIGHT
CHANCE OF SHOWERS.
WEDNESDAY
EAST TO SOUTHEAST WINDS NEAR 10 KNOTS, BECOMING
SOUTHEAST. SEAS 1 TO 2 FEET. NEARSHORE WATERS A LIGHT CHOP.
WEDNESDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING
SOUTHEAST TO SOUTH. SEAS AROUND 1 FOOT. NEARSHORE WATERS SMOOTH
TO A LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS.
THURSDAY
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS. SEAS AROUND
1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP.
THURSDAY NIGHT
EAST TO SOUTHEAST WINDS NEAR 5 KNOTS, BECOMING
SOUTHEAST TO SOUTH. SEAS AROUND 1 FOOT. NEARSHORE WATERS SMOOTH.
FRIDAY
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS. SEAS AROUND
1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP.
FRIDAY NIGHT
EAST TO SOUTHEAST WINDS NEAR 10 KNOTS, BECOMING
SOUTHEAST TO SOUTH AND INCREASING TO NEAR 15 KNOTS AFTER
MIDNIGHT. SEAS AROUND 1 FOOT, BUILDING TO 2 TO 3 FEET. NEARSHORE
WATERS A LIGHT CHOP, BECOMING A MODERATE CHOP.
SATURDAY
SOUTHEAST TO SOUTH WINDS NEAR 15 KNOTS, DECREASING TO
5 TO 10 KNOTS. SEAS 2 TO 3 FEET, SUBSIDING TO 1 TO 2 FEET.
NEARSHORE WATERS A MODERATE CHOP, BECOMING SMOOTH TO A LIGHT CHOP.
SATURDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING SOUTH
AND INCREASING TO 10 TO 15 KNOTS. SEAS 1 TO 2 FEET, BUILDING TO
AROUND 2 FEET. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP, BECOMING A
LIGHT TO MODERATE CHOP. A SLIGHT CHANCE OF SHOWERS.
GMZ052>055-072>075-282030-
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-
428 AM EDT TUE APR 28 2026
TODAY
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO
4 FEET, OCCASIONALLY TO 5 FEET. WAVE DETAIL: NORTHEAST TO EAST 3
FEET AT 5 SECONDS.
TONIGHT
EAST WINDS 10 TO 15 KNOTS, BECOMING EAST TO SOUTHEAST.
SEAS 2 TO 4 FEET, OCCASIONALLY TO 5 FEET. WAVE DETAIL: EAST 3
FEET AT 5 SECONDS. A SLIGHT CHANCE OF SHOWERS.
WEDNESDAY
EAST TO SOUTHEAST WINDS NEAR 10 KNOTS. SEAS 2 TO
3 FEET. WAVE DETAIL: EAST TO SOUTHEAST 3 FEET AT 5 SECONDS. A
SLIGHT CHANCE OF SHOWERS.
WEDNESDAY NIGHT
EAST TO SOUTHEAST WINDS NEAR 10 KNOTS. SEAS
AROUND 2 FEET.
THURSDAY
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO 2 FEET.
THURSDAY NIGHT
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS, BECOMING
SOUTHEAST AFTER MIDNIGHT. SEAS 1 TO 2 FEET.
FRIDAY
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST TO
SOUTHEAST AND INCREASING TO NEAR 10 KNOTS. SEAS 1 TO 2 FEET,
BUILDING TO AROUND 2 FEET.
FRIDAY NIGHT
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING
SOUTHEAST TO SOUTH AND INCREASING TO NEAR 15 KNOTS. SEAS 2 TO 4
FEET, OCCASIONALLY TO 5 FEET.
SATURDAY
SOUTHEAST TO SOUTH WINDS NEAR 15 KNOTS, BECOMING EAST
TO SOUTHEAST AND DECREASING TO NEAR 10 KNOTS. SEAS 2 TO 4 FEET,
OCCASIONALLY TO 5 FEET, SUBSIDING TO 2 TO 3 FEET.
SATURDAY NIGHT
EAST TO SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING
SOUTH AND INCREASING TO 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. A
SLIGHT CHANCE OF SHOWERS.
GMZ033-034-282030-
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-
428 AM EDT TUE APR 28 2026
TODAY
NORTHEAST TO EAST WINDS NEAR 15 KNOTS, DECREASING TO 5
TO 10 KNOTS THIS AFTERNOON. SEAS 2 TO 3 FEET, SUBSIDING TO 1 TO 2
FEET. WAVE DETAIL: NORTHEAST TO EAST 2 FEET AT 4 SECONDS.
TONIGHT
EAST WINDS 5 TO 10 KNOTS, BECOMING EAST TO SOUTHEAST
AND INCREASING TO NEAR 10 KNOTS. SEAS 1 TO 2 FEET. WAVE DETAIL:
EAST 2 FEET AT 4 SECONDS. A SLIGHT CHANCE OF SHOWERS.
WEDNESDAY
EAST TO SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO 2
FEET. WAVE DETAIL: EAST TO SOUTHEAST 1 FOOT AT 3 SECONDS.
WEDNESDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND
1 FOOT.
THURSDAY
SOUTHEAST TO SOUTH WINDS NEAR 5 KNOTS. SEAS 1 FOOT OR
LESS.
THURSDAY NIGHT
NORTH WINDS NEAR 5 KNOTS, BECOMING EAST TO
SOUTHEAST AFTER MIDNIGHT. SEAS 1 FOOT OR LESS.
FRIDAY
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND 1 FOOT.
FRIDAY NIGHT
EAST TO SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING
SOUTHEAST TO SOUTH AND INCREASING TO NEAR 15 KNOTS AFTER
MIDNIGHT. SEAS 1 TO 2 FEET, BUILDING TO 2 TO 3 FEET.
SATURDAY
SOUTHEAST TO SOUTH WINDS NEAR 15 KNOTS, BECOMING SOUTH
AND DECREASING TO 5 TO 10 KNOTS. SEAS 2 TO 3 FEET.
SATURDAY NIGHT
SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING SOUTH
AND INCREASING TO 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. A SLIGHT
CHANCE OF SHOWERS.
MJV
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