555
FZUS52 KKEY 092019
CWFKEY
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
419 PM EDT TUE SEP 9 2025
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.
GMZ005-100830-
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS
419 PM EDT TUE SEP 9 2025
SYNOPSIS
A SURFACE TROUGH STRETCHING ACROSS THE FLORIDA
PENINSULA WILL SHIFT NORTHWARD AND WEAKEN OVER THE NEXT COUPLE OF
DAYS. THIS WILL RESULT IN LIGHT SOUTH TO SOUTHWESTERLY BREEZES
ACROSS KEYS WATERS. DIURNAL INFLUENCES, THE WEAK FLOW, AND
CONVECTIVE INFLUENCES WILL LIKELY RESULT IN VARIABLE STRETCHES.
NEBULOUS FLOW WILL GIVE WAY TO LIGHT TO GENTLE BROADLY
NORTHEASTERLY BREEZES THROUGH THE BACK HALF OF THE WEEK AS A
FRONTAL BOUNDARY SAGS SOUTHWARD DOWN THE FLORIDA PENINSULA.
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF SEPTEMBER
8...
71 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY.
42 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS.
28 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST.
12 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY.
15 NM SOUTHEAST OF SOMBRERO KEY LIGHT...OFF MARATHON.
14 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA.
11 NM SOUTHEAST OF MOLASSES REEF LIGHT...OFF KEY LARGO.
7 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.
GMZ031-100830-
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND
BUTTONWOOD SOUND-
419 PM EDT TUE SEP 9 2025
TONIGHT
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS. BAY WATERS
SMOOTH TO A LIGHT CHOP. SCATTERED SHOWERS AND THUNDERSTORMS.
WEDNESDAY
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS. BAY WATERS
SMOOTH TO A LIGHT CHOP. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS.
WEDNESDAY NIGHT
SOUTHWEST TO WEST WINDS 5 TO 10 KNOTS,
BECOMING SOUTHEAST TO SOUTH NEAR 5 KNOTS AFTER MIDNIGHT. BAY
WATERS SMOOTH TO A LIGHT CHOP, BECOMING SMOOTH. SCATTERED SHOWERS
AND THUNDERSTORMS.
THURSDAY
SOUTHWEST WINDS NEAR 5 KNOTS. BAY WATERS SMOOTH.
NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
THURSDAY NIGHT
VARIABLE WINDS NEAR 5 KNOTS. BAY WATERS SMOOTH.
SCATTERED SHOWERS AND THUNDERSTORMS.
FRIDAY
SOUTHWEST TO WEST WINDS NEAR 5 KNOTS. BAY WATERS
SMOOTH. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
FRIDAY NIGHT
NORTHWEST WINDS NEAR 5 KNOTS, BECOMING NORTHEAST 5
TO 10 KNOTS. BAY WATERS SMOOTH, BECOMING SMOOTH TO A LIGHT CHOP.
NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
SATURDAY
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS
SMOOTH TO A LIGHT CHOP. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS.
SATURDAY NIGHT
NORTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS
SMOOTH TO A LIGHT CHOP. SCATTERED SHOWERS AND THUNDERSTORMS.
SUNDAY AND SUNDAY NIGHT
NORTHEAST WINDS 5 TO 10 KNOTS. BAY
WATERS SMOOTH TO A LIGHT CHOP. SCATTERED SHOWERS AND
THUNDERSTORMS.
GMZ032-035-100830-
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-
419 PM EDT TUE SEP 9 2025
TONIGHT
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR
LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SCATTERED SHOWERS
AND THUNDERSTORMS.
WEDNESDAY
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT
OR LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SCATTERED
SHOWERS AND THUNDERSTORMS.
WEDNESDAY NIGHT
VARIABLE WINDS NEAR 5 KNOTS, BECOMING SOUTHEAST.
SEAS 1 FOOT OR LESS. NEARSHORE WATERS SMOOTH. SCATTERED SHOWERS
AND THUNDERSTORMS.
THURSDAY
VARIABLE WINDS NEAR 5 KNOTS, BECOMING WEST TO
NORTHWEST. SEAS 1 FOOT OR LESS. NEARSHORE WATERS SMOOTH.
SCATTERED SHOWERS AND THUNDERSTORMS.
THURSDAY NIGHT
VARIABLE NEAR 5 KNOTS. SEAS 1 FOOT OR LESS.
NEARSHORE WATERS SMOOTH. SCATTERED SHOWERS AND THUNDERSTORMS.
FRIDAY
WEST TO NORTHWEST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR
LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. NUMEROUS SHOWERS
AND SCATTERED THUNDERSTORMS.
FRIDAY NIGHT
NORTH WINDS 5 TO 10 KNOTS, BECOMING NORTHEAST.
SEAS 1 FOOT OR LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP.
NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
SATURDAY
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT
OR LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. NUMEROUS
SHOWERS AND SCATTERED THUNDERSTORMS.
SATURDAY NIGHT
NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR
LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SCATTERED SHOWERS
AND THUNDERSTORMS.
SUNDAY AND SUNDAY NIGHT
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS.
SEAS 1 FOOT OR LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP.
SCATTERED SHOWERS AND THUNDERSTORMS.
GMZ042>044-100830-
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-
419 PM EDT TUE SEP 9 2025
TONIGHT
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND
1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SCATTERED
SHOWERS AND THUNDERSTORMS.
WEDNESDAY
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND
1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SCATTERED
SHOWERS AND THUNDERSTORMS.
WEDNESDAY NIGHT
VARIABLE WINDS NEAR 5 KNOTS. SEAS AROUND 1
FOOT. NEARSHORE WATERS SMOOTH. SCATTERED SHOWERS AND
THUNDERSTORMS.
THURSDAY
VARIABLE WINDS NEAR 5 KNOTS. SEAS AROUND 1 FOOT.
NEARSHORE WATERS SMOOTH. SCATTERED SHOWERS AND THUNDERSTORMS.
THURSDAY NIGHT
VARIABLE WINDS NEAR 5 KNOTS. SEAS 1 FOOT OR
LESS. NEARSHORE WATERS SMOOTH. SCATTERED SHOWERS AND
THUNDERSTORMS.
FRIDAY
VARIABLE WINDS NEAR 5 KNOTS, BECOMING NORTHWEST. SEAS 1
FOOT OR LESS. NEARSHORE WATERS SMOOTH. NUMEROUS SHOWERS AND
SCATTERED THUNDERSTORMS.
FRIDAY NIGHT
NORTHWEST TO NORTH 5 TO 10 KNOTS, BECOMING
NORTHEAST. SEAS 1 FOOT OR LESS. NEARSHORE WATERS SMOOTH TO A
LIGHT CHOP. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
SATURDAY
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT
OR LESS. NEARSHORE WATERS SMOOTH, BECOMING A LIGHT CHOP. SCATTERED
SHOWERS AND THUNDERSTORMS.
SATURDAY NIGHT
NORTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND
1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. NUMEROUS SHOWERS
AND SCATTERED THUNDERSTORMS.
SUNDAY
NORTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND 1 FOOT.
NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SCATTERED SHOWERS AND
THUNDERSTORMS.
SUNDAY NIGHT
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS. SEAS
AROUND 1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SCATTERED
SHOWERS AND THUNDERSTORMS.
GMZ052>055-072>075-100830-
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-
419 PM EDT TUE SEP 9 2025
TONIGHT
SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST TO SOUTH.
SEAS AROUND 1 FOOT. WAVE DETAIL: SOUTHEAST 1 FOOT AT 3 SECONDS.
SCATTERED SHOWERS AND THUNDERSTORMS.
WEDNESDAY
SOUTH WINDS 5 TO 10 KNOTS, BECOMING VARIABLE. SEAS 1
TO 2 FEET. WAVE DETAIL: SOUTHEAST 1 FOOT AT 3 SECONDS. SCATTERED
SHOWERS AND THUNDERSTORMS.
WEDNESDAY NIGHT
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS,
BECOMING EAST TO SOUTHEAST. SEAS 1 TO 2 FEET. WAVE DETAIL:
EAST 1 FOOT AT 3 SECONDS. SCATTERED SHOWERS AND THUNDERSTORMS.
THURSDAY
VARIABLE WINDS 5 TO 10 KNOTS. SEAS 1 TO 2 FEET.
SCATTERED SHOWERS AND THUNDERSTORMS.
THURSDAY NIGHT
VARIABLE WINDS 5 TO 10 KNOTS. SEAS 1 TO 2 FEET.
SCATTERED SHOWERS AND THUNDERSTORMS.
FRIDAY
VARIABLE WINDS 5 TO 10 KNOTS, BECOMING NORTHWEST. SEAS
AROUND 1 FOOT. SCATTERED SHOWERS AND THUNDERSTORMS.
FRIDAY NIGHT
NORTHWEST TO NORTH WINDS 5 TO 10 KNOTS, BECOMING
NORTHEAST. SEAS 1 TO 2 FEET. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS.
SATURDAY
WINDS BECOMING NORTH TO NORTHEAST 5 TO 10 KNOTS. SEAS
1 TO 2 FEET. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
SATURDAY NIGHT
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS. SEAS
1 TO 2 FEET. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
SUNDAY
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS. SEAS 1 TO
2 FEET. SCATTERED SHOWERS AND THUNDERSTORMS.
SUNDAY NIGHT
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS. SEAS 1 TO
2 FEET. SCATTERED SHOWERS AND THUNDERSTORMS.
GMZ033-034-100830-
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-
419 PM EDT TUE SEP 9 2025
TONIGHT
SOUTHWEST WINDS 5 TO 10 KNOTS, BECOMING SOUTH. SEAS 1
TO 2 FEET. WAVE DETAIL: SOUTH TO SOUTHWEST 1 FOOT AT 4 SECONDS AND
NORTHWEST 1 FOOT AT 6 SECONDS. SCATTERED SHOWERS AND
THUNDERSTORMS.
WEDNESDAY
SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND 1 FOOT.
WAVE DETAIL: SOUTHWEST 1 FOOT AT 4 SECONDS. SCATTERED SHOWERS AND
THUNDERSTORMS.
WEDNESDAY NIGHT
WEST TO NORTHWEST WINDS NEAR 5 KNOTS, BECOMING
SOUTH AROUND 5 KNOTS. SEAS AROUND 1 FOOT. WAVE DETAIL:
WEST 1 FOOT AT 4 SECONDS. SCATTERED SHOWERS AND THUNDERSTORMS.
THURSDAY
VARIABLE WINDS NEAR 5 KNOTS, BECOMING NORTHWEST TO
NORTH. SEAS AROUND 1 FOOT. SCATTERED SHOWERS AND THUNDERSTORMS.
THURSDAY NIGHT
NORTHWEST TO NORTH WINDS 5 TO 10 KNOTS. SEAS
AROUND 1 FOOT. SCATTERED SHOWERS AND THUNDERSTORMS.
FRIDAY
NORTHWEST TO NORTH WINDS 5 TO 10 KNOTS. SEAS AROUND
1 FOOT. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
FRIDAY NIGHT
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO
2 FEET. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
SATURDAY
WINDS BECOMING NORTHEAST 5 TO 10 KNOTS. SEAS 1 TO 2
FEET. SCATTERED SHOWERS AND THUNDERSTORMS.
SATURDAY NIGHT
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS. SEAS
1 TO 2 FEET. SCATTERED SHOWERS AND THUNDERSTORMS.
SUNDAY
NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO 2 FEET.
SCATTERED SHOWERS AND THUNDERSTORMS.
SUNDAY NIGHT
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS. SEAS 1 TO
2 FEET. SCATTERED SHOWERS AND THUNDERSTORMS.
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