511
FZUS52 KKEY 090228
CWFKEY
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
1028 PM EDT MON SEP 8 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.
GMZ005-091430-
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS
1028 PM EDT MON SEP 8 2025
SYNOPSIS
A SURFACE TROUGH WILL REMAIN CENTERED OVER THE
EASTERN GULF AND FLORIDA PENINSULA OVER THE NEXT COUPLE OF DAYS.
THIS TROUGH WILL BE SLOWLY SHEARED OUT MID TO LATE WEEK.
HOWEVER, THE PRESSURE FIELD IN AND AROUND THE KEYS WILL GENERALLY
REMAIN POORLY DEFINED. MOISTURE WILL REMAIN ABOVE NORMAL. THIS
ALONG WITH THE WEAK STEERING CURRENTS WILL RESULT CONTINUED ABOVE
NORMAL CONVECTIVE POTENTIAL.
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF SEPTEMBER 1...
41 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY.
30 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS.
9 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST.
8 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY.
7 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.
4 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.
GMZ031-091430-
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND
BUTTONWOOD SOUND-
1028 PM EDT MON SEP 8 2025
OVERNIGHT
SOUTH WINDS NEAR 5 KNOTS, INCREASING TO 5 TO 10
KNOTS. BAY WATERS SMOOTH, BECOMING SMOOTH TO A LIGHT CHOP.
SCATTERED SHOWERS AND THUNDERSTORMS.
TUESDAY
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH TO A
LIGHT CHOP. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
TUESDAY NIGHT
SOUTH 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
WEST WINDS NEAR 5 KNOTS, BECOMING VARIABLE.
BAY WATERS SMOOTH. SCATTERED SHOWERS AND THUNDERSTORMS.
THURSDAY
VARIABLE WINDS NEAR 5 KNOTS, BECOMING WEST IN THE
AFTERNOON. BAY WATERS SMOOTH. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS.
THURSDAY NIGHT
VARIABLE WINDS NEAR 5 KNOTS. BAY WATERS SMOOTH.
SCATTERED SHOWERS AND THUNDERSTORMS.
FRIDAY
VARIABLE WINDS NEAR 5 KNOTS. BAY WATERS SMOOTH.
NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
FRIDAY NIGHT
VARIABLE WINDS NEAR 5 KNOTS, BECOMING NORTH AND
INCREASING TO 5 TO 10 KNOTS. BAY WATERS SMOOTH, BECOMING SMOOTH
TO A LIGHT CHOP. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
SATURDAY
NORTH WINDS NEAR 5 KNOTS. BAY WATERS SMOOTH. NUMEROUS
SHOWERS AND SCATTERED THUNDERSTORMS.
SATURDAY NIGHT
EAST WINDS NEAR 5 KNOTS, BECOMING NORTHEAST.
BAY WATERS SMOOTH, BECOMING A LIGHT CHOP. SCATTERED SHOWERS AND
THUNDERSTORMS.
GMZ032-035-091430-
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 PM EDT MON SEP 8 2025
OVERNIGHT
SOUTH WINDS NEAR 5 KNOTS, INCREASING TO 5 TO 10
KNOTS. SEAS 1 FOOT OR LESS. NEARSHORE WATERS SMOOTH, BECOMING
SMOOTH TO A LIGHT CHOP. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS.
TUESDAY
SOUTH WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR LESS.
NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. NUMEROUS SHOWERS AND
SCATTERED THUNDERSTORMS.
TUESDAY NIGHT
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS, BECOMING
SOUTHEAST TO SOUTH AFTER MIDNIGHT. SEAS 1 FOOT OR LESS. NEARSHORE
WATERS SMOOTH TO A LIGHT CHOP. SCATTERED SHOWERS AND
THUNDERSTORMS.
WEDNESDAY
SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTHWEST TO
WEST IN THE AFTERNOON. SEAS 1 FOOT OR LESS. NEARSHORE WATERS
SMOOTH TO A LIGHT CHOP. SCATTERED SHOWERS AND THUNDERSTORMS.
WEDNESDAY NIGHT
NORTHWEST TO NORTH WINDS NEAR 5 KNOTS, BECOMING
VARIABLE. SEAS 1 FOOT OR LESS. NEARSHORE WATERS SMOOTH. SCATTERED
SHOWERS AND THUNDERSTORMS.
.THURSDAY..VARIABLE WINDS NEAR 5 KNOTS, BECOMING NORTHWEST TO
NORTH 5 TO 10 KNOTS. SEAS 1 FOOT OR LESS. NEARSHORE WATERS SMOOTH,
BECOMING SMOOTH TO A LIGHT CHOP. SCATTERED SHOWERS AND
THUNDERSTORMS.
THURSDAY NIGHT
NORTH WINDS 5 TO 10 KNOTS, BECOMING NORTHEAST
TO EAST. SEAS 1 FOOT OR LESS. NEARSHORE WATERS SMOOTH TO A LIGHT
CHOP. 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 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
EAST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR LESS.
NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. NUMEROUS SHOWERS AND
SCATTERED THUNDERSTORMS.
GMZ042>044-091430-
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 PM EDT MON SEP 8 2025
OVERNIGHT
SOUTH WINDS NEAR 5 KNOTS, INCREASING TO 5 TO 10
KNOTS. SEAS AROUND 1 FOOT. NEARSHORE WATERS SMOOTH, BECOMING
SMOOTH TO A LIGHT CHOP. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS.
TUESDAY
SOUTH WINDS 5 TO 10 KNOTS. SEAS AROUND 1 FOOT.
NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. NUMEROUS SHOWERS AND
SCATTERED THUNDERSTORMS.
TUESDAY NIGHT
SOUTH WINDS 5 TO 10 KNOTS. SEAS AROUND 1 FOOT.
NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SCATTERED SHOWERS AND
THUNDERSTORMS.
WEDNESDAY
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS, BECOMING
SOUTHWEST IN THE AFTERNOON. SEAS AROUND 1 FOOT. NEARSHORE WATERS
SMOOTH TO A LIGHT CHOP. SCATTERED SHOWERS AND THUNDERSTORMS.
WEDNESDAY NIGHT
VARIABLE WINDS NEAR 5 KNOTS. SEAS 1 FOOT OR
LESS. NEARSHORE WATERS SMOOTH. SCATTERED SHOWERS AND
THUNDERSTORMS.
THURSDAY
VARIABLE WINDS NEAR 5 KNOTS, BECOMING NORTHWEST TO
NORTH 5 TO 10 KNOTS. SEAS 1 FOOT OR LESS. NEARSHORE WATERS
SMOOTH, BECOMING SMOOTH TO A LIGHT CHOP. SCATTERED SHOWERS AND
THUNDERSTORMS.
THURSDAY NIGHT
NORTHEAST WINDS NEAR 5 KNOTS. SEAS 1 FOOT OR
LESS. NEARSHORE WATERS SMOOTH. SCATTERED SHOWERS AND
THUNDERSTORMS.
FRIDAY
VARIABLE WINDS NEAR 5 KNOTS. SEAS 1 FOOT OR LESS.
NEARSHORE WATERS SMOOTH. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS.
FRIDAY NIGHT
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
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 TO EAST WINDS 5 TO 10 KNOTS. SEAS
1 FOOT OR LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. NUMEROUS
SHOWERS AND SCATTERED THUNDERSTORMS.
GMZ052>055-072>075-091430-
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 PM EDT MON SEP 8 2025
OVERNIGHT
SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTHEAST TO
SOUTH. SEAS AROUND 1 FOOT. WAVE DETAIL: SOUTHEAST 1 FOOT AT 2
SECONDS. SCATTERED SHOWERS AND THUNDERSTORMS.
TUESDAY
SOUTH WINDS 5 TO 10 KNOTS. SEAS AROUND 1 FOOT. WAVE
DETAIL: SOUTHEAST TO SOUTH 1 FOOT AT 3 SECONDS. NUMEROUS SHOWERS
AND SCATTERED THUNDERSTORMS.
TUESDAY NIGHT
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS. SEAS
AROUND 1 FOOT. WAVE DETAIL: SOUTHEAST 1 FOOT AT 3 SECONDS.
SCATTERED SHOWERS AND THUNDERSTORMS.
WEDNESDAY
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS, BECOMING
VARIABLE. SEAS AROUND 1 FOOT. SCATTERED SHOWERS AND
THUNDERSTORMS.
WEDNESDAY NIGHT
NORTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST
AFTER MIDNIGHT. SEAS AROUND 1 FOOT. SCATTERED SHOWERS AND
THUNDERSTORMS.
THURSDAY
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS, BECOMING NORTH
TO NORTHEAST. SEAS 1 TO 2 FEET. SCATTERED SHOWERS AND
THUNDERSTORMS.
THURSDAY NIGHT
NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO
2 FEET. SCATTERED SHOWERS AND THUNDERSTORMS.
FRIDAY
VARIABLE WINDS 5 TO 10 KNOTS, BECOMING NORTHWEST TO
NORTH. SEAS 1 TO 2 FEET. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS.
FRIDAY NIGHT
NORTH TO NORTHEAST WINDS NEAR 5 KNOTS. SEAS 1 TO
2 FEET. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
SATURDAY
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS, BECOMING
NORTHWEST. SEAS 1 TO 2 FEET. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS.
SATURDAY NIGHT
NORTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST.
SEAS 1 TO 2 FEET. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
GMZ033-034-091430-
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 PM EDT MON SEP 8 2025
OVERNIGHT
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS, BECOMING
SOUTH. SEAS AROUND 1 FOOT. WAVE DETAIL: SOUTHWEST 1 FOOT AT 3
SECONDS. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
TUESDAY
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS 1 TO
2 FEET. WAVE DETAIL: SOUTH TO SOUTHWEST 1 FOOT AT 3 SECONDS.
NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
TUESDAY NIGHT
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS, BECOMING
SOUTHEAST TO SOUTH. SEAS AROUND 1 FOOT. WAVE DETAIL: SOUTH TO
SOUTHWEST 1 FOOT AT 4 SECONDS AND NORTHWEST 1 FOOT AT 6 SECONDS.
NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
WEDNESDAY
SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTHWEST TO
WEST. SEAS AROUND 1 FOOT. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS.
WEDNESDAY NIGHT
NORTHWEST TO NORTH WINDS 5 TO 10 KNOTS,
BECOMING VARIABLE NEAR 5 KNOTS. SEAS AROUND 1 FOOT. SCATTERED
SHOWERS AND THUNDERSTORMS.
THURSDAY
NORTHWEST WINDS NEAR 5 KNOTS, INCREASING TO 5 TO 10
KNOTS. SEAS AROUND 1 FOOT. SCATTERED SHOWERS AND THUNDERSTORMS.
THURSDAY NIGHT
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. SEAS
AROUND 1 FOOT. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
FRIDAY
NORTH WINDS 5 TO 10 KNOTS. SEAS 1 TO 2 FEET. 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
NORTHEAST TO EAST WINDS 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.
MJV
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