129
FZUS52 KKEY 180226
CWFKEY
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
1026 PM EDT FRI APR 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.
GMZ005-181430-
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS
1026 PM EDT FRI APR 17 2026
SYNOPSIS
HIGH PRESSURE OVER THE CENTRAL NORTH ATLANTIC WILL
START TO LOOSEN ITS GRIP ACROSS THE KEYS OVER THE WEEKEND. THIS
WILL ALLOW FOR SLOWLY SLACKENING BREEZES, POTENTIALLY BECOMING
VARIABLE SOMETIME SUNDAY/SUNDAY NIGHT. A FRONT APPROACHES THE KEYS
SOMETIME MONDAY/MONDAY EVENING WITH A STRONG HIGH PRESSURE
QUICKLY FILLING IN THE WAKE ON TUESDAY. FRESH TO STRONG BREEZES
WILL PREVAIL AS EARLY AS MONDAY NIGHT, AND HAZARDOUS MARINE
CONDITIONS WILL CONTINUE THROUGH AT LEAST MID WEEK.
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF APRIL 16...
16 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY.
12 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS.
22 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST.
30 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY.
26 NM SOUTHEAST OF SOMBRERO KEY LIGHT...OFF MARATHON.
20 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA.
15 NM SOUTHEAST OF MOLASSES REEF LIGHT...OFF KEY LARGO.
9 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.
GMZ031-181430-
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND
BUTTONWOOD SOUND-
1026 PM EDT FRI APR 17 2026
OVERNIGHT
NORTHEAST TO EAST WINDS NEAR 10 KNOTS. BAY WATERS A
LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS.
SATURDAY
EAST WINDS NEAR 10 KNOTS. BAY WATERS A LIGHT CHOP.
SATURDAY NIGHT
EAST WINDS NEAR 10 KNOTS. BAY WATERS A LIGHT
CHOP. A SLIGHT CHANCE OF SHOWERS.
SUNDAY
EAST TO SOUTHEAST WINDS 5 TO 10 KNOTS, BRIEFLY
DECREASING TO NEAR 5 KNOTS. BAY WATERS SMOOTH TO A LIGHT CHOP,
BECOMING SMOOTH. A SLIGHT CHANCE OF SHOWERS.
SUNDAY NIGHT
NORTHWEST TO NORTH WINDS 5 TO 10 KNOTS, INCREASING
TO NEAR 10 KNOTS. BAY WATERS SMOOTH TO A LIGHT CHOP, BECOMING A
LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS.
MONDAY
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS, BECOMING
NORTHEAST TO EAST AND INCREASING TO 10 TO 15 KNOTS. BAY WATERS A
LIGHT CHOP, BECOMING A LIGHT TO MODERATE CHOP. A SLIGHT CHANCE OF
SHOWERS.
MONDAY NIGHT
NORTHEAST WINDS 15 TO 20 KNOTS, INCREASING TO
20 TO 25 KNOTS. BAY WATERS CHOPPY, BECOMING VERY ROUGH. A SLIGHT
CHANCE OF SHOWERS.
TUESDAY
NORTHEAST TO EAST WINDS NEAR 25 KNOTS. BAY WATERS
EXTREMELY ROUGH.
TUESDAY NIGHT
NORTHEAST TO EAST WINDS NEAR 25 KNOTS, DECREASING
TO 20 TO 25 KNOTS. BAY WATERS EXTREMELY ROUGH, BECOMING VERY
ROUGH.
WEDNESDAY
NORTHEAST TO EAST WINDS 20 TO 25 KNOTS, BECOMING
EAST AND DECREASING TO NEAR 20 KNOTS. BAY WATERS VERY ROUGH,
BECOMING ROUGH.
WEDNESDAY NIGHT
EAST WINDS DECREASING TO 15 TO 20 KNOTS. BAY
WATERS BECOMING CHOPPY. A SLIGHT CHANCE OF SHOWERS.
GMZ032-035-181430-
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-
1026 PM EDT FRI APR 17 2026
OVERNIGHT
NORTHEAST TO EAST 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.
A SLIGHT CHANCE OF SHOWERS.
SATURDAY
EAST WINDS NEAR 10 KNOTS. SEAS 1 TO 2 FEET. NEARSHORE
WATERS A LIGHT CHOP.
SATURDAY NIGHT
EAST WINDS NEAR 10 KNOTS. SEAS 1 TO 2 FEET.
NEARSHORE WATERS A LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS.
SUNDAY
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS, BECOMING
NORTHWEST TO NORTH. SEAS AROUND 1 FOOT, SUBSIDING TO 1 FOOT OR
LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP.
SUNDAY NIGHT
NORTHWEST TO NORTH WINDS 5 TO 10 KNOTS, INCREASING
TO NEAR 10 KNOTS. SEAS 1 FOOT OR LESS, BUILDING TO AROUND 1 FOOT,
EXCEPT BUILDING TO 1 TO 2 FEET WEST OF THE MARQUESAS KEYS.
NEARSHORE WATERS SMOOTH TO A LIGHT CHOP, BECOMING A LIGHT CHOP.
MONDAY
NORTH TO NORTHEAST 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 SLIGHT CHANCE OF SHOWERS.
MONDAY NIGHT
NORTHEAST WINDS 15 TO 20 KNOTS, INCREASING TO
20 TO 25 KNOTS. SEAS BUILDING TO 2 TO 4 FEET, OCCASIONALLY TO 5
FEET. WEST OF THE MARQUESAS KEYS, SEAS 3 TO 4 FEET, OCCASIONALLY
TO 5 FEET, BUILDING TO 5 TO 6 FEET, OCCASIONALLY TO 8 FEET.
NEARSHORE WATERS CHOPPY, BECOMING VERY ROUGH. A SLIGHT CHANCE OF
SHOWERS.
TUESDAY
NORTHEAST TO EAST WINDS NEAR 25 KNOTS. SEAS 3 TO 5
FEET, OCCASIONALLY TO 6 FEET, EXCEPT 6 TO 7 FEET, OCCASIONALLY TO
9 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE WATERS EXTREMELY
ROUGH.
TUESDAY NIGHT
NORTHEAST TO EAST WINDS NEAR 25 KNOTS, DECREASING
TO 20 TO 25 KNOTS. SEAS 3 TO 5 FEET, OCCASIONALLY TO 6 FEET,
EXCEPT 6 TO 7 FEET, OCCASIONALLY TO 9 FEET WEST OF THE MARQUESAS
KEYS. NEARSHORE WATERS EXTREMELY ROUGH, BECOMING VERY ROUGH.
WEDNESDAY
EAST WINDS NEAR 20 KNOTS, DECREASING TO 15 TO 20
KNOTS. SEAS 2 TO 4 FEET, OCCASIONALLY TO 5 FEET, EXCEPT 5 TO 6
FEET, OCCASIONALLY TO 8 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE
WATERS ROUGH, BECOMING CHOPPY.
WEDNESDAY NIGHT
EAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET,
OCCASIONALLY TO 5 FEET, EXCEPT 5 TO 6 FEET, OCCASIONALLY TO
8 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE WATERS CHOPPY. A
SLIGHT CHANCE OF SHOWERS.
GMZ042>044-181430-
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-
1026 PM EDT FRI APR 17 2026
OVERNIGHT
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3
FEET. NEARSHORE WATERS A LIGHT TO MODERATE CHOP. A SLIGHT CHANCE
OF SHOWERS.
SATURDAY
EAST WINDS 10 TO 15 KNOTS, DECREASING TO NEAR 10
KNOTS. SEAS 2 TO 3 FEET. NEARSHORE WATERS A LIGHT TO MODERATE
CHOP, BECOMING A LIGHT CHOP.
SATURDAY NIGHT
EAST WINDS 10 TO 15 KNOTS. SEAS AROUND 2 FEET.
NEARSHORE WATERS A LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS.
SUNDAY
EAST WINDS NEAR 10 KNOTS, BECOMING NORTH TO NORTHEAST
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. A SLIGHT CHANCE OF SHOWERS.
SUNDAY NIGHT
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS, INCREASING
TO NEAR 10 KNOTS. SEAS AROUND 1 FOOT, EXCEPT BUILDING TO 1 TO 2
FEET WEST OF COSGROVE SHOAL LIGHT. NEARSHORE WATERS SMOOTH TO A
LIGHT CHOP, BECOMING A LIGHT CHOP. A SLIGHT CHANCE OF SHOWERS.
MONDAY
NORTH TO NORTHEAST WINDS 10 TO 15 KNOTS, INCREASING TO
NEAR 15 KNOTS. SEAS AROUND 1 FOOT, BUILDING TO 1 TO 2 FEET. WEST
OF COSGROVE SHOAL LIGHT, SEAS 1 TO 2 FEET, BUILDING TO 2 TO 3
FEET. NEARSHORE WATERS A LIGHT TO MODERATE CHOP, BECOMING A
MODERATE CHOP. A SLIGHT CHANCE OF SHOWERS.
MONDAY NIGHT
NORTHEAST WINDS 15 TO 20 KNOTS, INCREASING TO
20 TO 25 KNOTS. SEAS 2 TO 3 FEET, BUILDING TO 3 TO 5 FEET,
OCCASIONALLY TO 6 FEET. WEST OF COSGROVE SHOAL LIGHT, SEAS 3 TO 4
FEET, OCCASIONALLY TO 5 FEET, BUILDING TO 5 TO 6 FEET,
OCCASIONALLY TO 8 FEET. NEARSHORE WATERS CHOPPY, BECOMING VERY
ROUGH. A SLIGHT CHANCE OF SHOWERS.
TUESDAY
NORTHEAST TO EAST WINDS NEAR 25 KNOTS. SEAS 4 TO 6
FEET, OCCASIONALLY TO 8 FEET, EXCEPT 6 TO 8 FEET, OCCASIONALLY TO
10 FEET WEST OF COSGROVE SHOAL LIGHT. NEARSHORE WATERS EXTREMELY
ROUGH.
TUESDAY NIGHT
NORTHEAST TO EAST WINDS NEAR 25 KNOTS, DECREASING
TO 20 TO 25 KNOTS. SEAS 5 TO 8 FEET, OCCASIONALLY TO 10 FEET.
NEARSHORE WATERS EXTREMELY ROUGH, BECOMING VERY ROUGH.
WEDNESDAY
EAST WINDS NEAR 20 KNOTS, DECREASING TO 15 TO 20
KNOTS. SEAS SUBSIDING TO 4 TO 6 FEET, OCCASIONALLY TO 8 FEET,
EXCEPT 5 TO 6 FEET, OCCASIONALLY TO 8 FEET WEST OF COSGROVE SHOAL
LIGHT. NEARSHORE WATERS ROUGH, BECOMING CHOPPY.
WEDNESDAY NIGHT
EAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 5 FEET,
OCCASIONALLY TO 6 FEET, EXCEPT 4 TO 6 FEET, OCCASIONALLY TO
8 FEET WEST OF COSGROVE SHOAL LIGHT. NEARSHORE WATERS CHOPPY. A
SLIGHT CHANCE OF SHOWERS.
GMZ052>055-072>075-181430-
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-
1026 PM EDT FRI APR 17 2026
OVERNIGHT
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS. SEAS 3 TO
4 FEET, OCCASIONALLY TO 5 FEET. WAVE DETAIL: NORTHEAST TO EAST
4 FEET AT 5 SECONDS. A SLIGHT CHANCE OF SHOWERS.
SATURDAY
EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET,
OCCASIONALLY TO 5 FEET. WAVE DETAIL: EAST 4 FEET AT 6 SECONDS. A
SLIGHT CHANCE OF SHOWERS.
SATURDAY NIGHT
EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 4 FEET,
OCCASIONALLY TO 5 FEET. WAVE DETAIL: EAST 4 FEET AT 5 SECONDS. A
SLIGHT CHANCE OF SHOWERS. A SLIGHT CHANCE OF SHOWERS.
SUNDAY
EAST TO SOUTHEAST WINDS NEAR 10 KNOTS, BECOMING
NORTHEAST TO EAST AND DECREASING TO 5 TO 10 KNOTS. SEAS 2 TO 3
FEET, SUBSIDING TO 1 TO 2 FEET. A SLIGHT CHANCE OF SHOWERS.
SUNDAY NIGHT
NORTHEAST WINDS 5 TO 10 KNOTS, INCREASING TO 10 TO
15 KNOTS. SEAS 1 TO 2 FEET, BUILDING TO 2 TO 3 FEET. A SLIGHT
CHANCE OF SHOWERS.
MONDAY
NORTH TO NORTHEAST WINDS 10 TO 15 KNOTS, INCREASING TO
NEAR 15 KNOTS. SEAS 2 TO 3 FEET, BUILDING TO 3 TO 4 FEET,
OCCASIONALLY TO 5 FEET. A SLIGHT CHANCE OF SHOWERS.
MONDAY NIGHT
NORTHEAST WINDS 15 TO 20 KNOTS, INCREASING TO
20 TO 25 KNOTS. SEAS 4 TO 6 FEET, OCCASIONALLY TO 8 FEET,
BUILDING TO 7 TO 10 FEET, OCCASIONALLY TO 13 FEET. A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS.
TUESDAY
NORTHEAST TO EAST WINDS NEAR 25 KNOTS. SEAS 9 TO 12
FEET, OCCASIONALLY TO 15 FEET. A SLIGHT CHANCE OF SHOWERS.
TUESDAY NIGHT
NORTHEAST TO EAST WINDS NEAR 25 KNOTS. SEAS 11
TO 14 FEET, OCCASIONALLY TO 18 FEET, SUBSIDING TO 9 TO 12 FEET,
OCCASIONALLY TO 15 FEET. A SLIGHT CHANCE OF SHOWERS.
WEDNESDAY
NORTHEAST TO EAST WINDS 20 TO 25 KNOTS, BECOMING
EAST AND DECREASING TO NEAR 20 KNOTS. SEAS 8 TO 10 FEET,
OCCASIONALLY TO 13 FEET, SUBSIDING TO 6 TO 8 FEET, OCCASIONALLY TO
10 FEET. A SLIGHT CHANCE OF SHOWERS.
WEDNESDAY NIGHT
EAST WINDS DECREASING TO 15 TO 20 KNOTS. SEAS
SUBSIDING TO 5 TO 7 FEET, OCCASIONALLY TO 9 FEET. A SLIGHT CHANCE
OF SHOWERS.
GMZ033-034-181430-
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-
1026 PM EDT FRI APR 17 2026
OVERNIGHT
NORTHEAST TO EAST WINDS NEAR 10 KNOTS. SEAS 1 TO 2
FEET. WAVE DETAIL: EAST 2 FEET AT 3 SECONDS AND NORTHWEST TO NORTH
1 FOOT AT 3 SECONDS.
SATURDAY
EAST WINDS NEAR 10 KNOTS, DECREASING TO 5 TO 10
KNOTS. SEAS 1 TO 2 FEET. WAVE DETAIL: EAST 2 FEET AT 4 SECONDS.
SATURDAY NIGHT
EAST WINDS 5 TO 10 KNOTS. SEAS 1 TO 2 FEET.
WAVE DETAIL: EAST 1 FOOT AT 3 SECONDS. A SLIGHT CHANCE OF
SHOWERS.
SUNDAY
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS, BECOMING
NORTHWEST TO NORTH. SEAS 1 TO 2 FEET, SUBSIDING TO AROUND 1 FOOT.
SUNDAY NIGHT
NORTHWEST TO NORTH WINDS NEAR 10 KNOTS, BECOMING
NORTH TO NORTHEAST AND INCREASING TO 10 TO 15 KNOTS. SEAS 1 TO 2
FEET, BUILDING TO 2 TO 3 FEET.
MONDAY
NORTH TO NORTHEAST WINDS 10 TO 15 KNOTS, INCREASING TO
NEAR 15 KNOTS. SEAS 2 TO 4 FEET, OCCASIONALLY TO 5 FEET. A SLIGHT
CHANCE OF SHOWERS.
MONDAY NIGHT
NORTHEAST WINDS 15 TO 20 KNOTS, INCREASING TO 20
TO 25 KNOTS. SEAS 3 TO 5 FEET, OCCASIONALLY TO 6 FEET, BUILDING
TO 5 TO 7 FEET, OCCASIONALLY TO 9 FEET.
TUESDAY
NORTHEAST TO EAST WINDS 20 TO 25 KNOTS, DECREASING TO
NEAR 20 KNOTS. SEAS 6 TO 9 FEET, OCCASIONALLY TO 11 FEET, SUBSIDING
TO 5 TO 8 FEET, OCCASIONALLY TO 10 FEET.
TUESDAY NIGHT
NORTHEAST TO EAST WINDS 20 TO 25 KNOTS,
DECREASING TO NEAR 20 KNOTS. SEAS 5 TO 8 FEET, OCCASIONALLY TO 10
FEET.
WEDNESDAY
EAST WINDS DECREASING TO 15 TO 20 KNOTS. SEAS 5 TO 7
FEET, OCCASIONALLY TO 9 FEET.
WEDNESDAY NIGHT
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET,
OCCASIONALLY TO 8 FEET. A SLIGHT CHANCE OF SHOWERS.
MJV
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