354
FZUS52 KKEY 080220
CWFKEY
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
1020 PM EDT SUN SEP 7 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.
GMZ005-081430-
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS
1020 PM EDT SUN SEP 7 2025
SYNOPSIS
A SURFACE TROUGH WILL REMAIN CENTERED OVER THE
EASTERN GULF AND FLORIDA PENINSULA WELL INTO THE WEEK. THIS
TROUGH WILL FINALLY WASH OUT HEADING INTO MID WEEK. HOWEVER, THE
PRESSURE FIELD IN AND AROUND THE KEYS WILL REMAIN POORLY DEFINED.
CONTINUED VERY HIGH MOISTURE LEVELS AND WEAK STEERING CURRENTS
WILL GENERALLY RESULT IN GREATER CONVECTIVE COVERAGE THROUGH THE
FORECAST.
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.
GMZ031-081430-
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND
BUTTONWOOD SOUND-
1020 PM EDT SUN SEP 7 2025
OVERNIGHT
SOUTH TO SOUTHWEST WINDS NEAR 5 KNOTS. BAY WATERS
SMOOTH. SCATTERED SHOWERS AND THUNDERSTORMS.
MONDAY
SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH TO A LIGHT
CHOP. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
MONDAY NIGHT
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS. BAY
WATERS 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 WINDS NEAR 5 KNOTS, BECOMING SOUTHWEST. BAY
WATERS SMOOTH. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
WEDNESDAY NIGHT
WINDS BECOMING EAST NEAR 5 KNOTS. BAY WATERS
SMOOTH. SCATTERED SHOWERS AND THUNDERSTORMS.
THURSDAY
NORTHEAST WINDS NEAR 5 KNOTS, BECOMING VARIABLE. BAY
WATERS SMOOTH. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
THURSDAY NIGHT
WINDS BECOMING NORTHEAST NEAR 5 KNOTS. BAY
WATERS SMOOTH. SCATTERED SHOWERS AND THUNDERSTORMS.
FRIDAY
NORTHEAST WINDS NEAR 5 KNOTS, BECOMING SOUTH TO
SOUTHWEST. BAY WATERS SMOOTH. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS.
FRIDAY NIGHT
NORTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS SMOOTH
TO A LIGHT CHOP. SCATTERED SHOWERS AND THUNDERSTORMS.
GMZ032-035-081430-
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-
1020 PM EDT SUN SEP 7 2025
OVERNIGHT
SOUTH TO SOUTHWEST WINDS NEAR 5 KNOTS. SEAS 1 FOOT
OR LESS. NEARSHORE WATERS SMOOTH. SCATTERED SHOWERS AND
THUNDERSTORMS.
MONDAY
SOUTH TO SOUTHWEST WINDS NEAR 5 KNOTS. SEAS 1 FOOT OR
LESS. NEARSHORE WATERS SMOOTH. SCATTERED SHOWERS AND
THUNDERSTORMS.
MONDAY NIGHT
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS. SEAS 1
FOOT OR LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. NUMEROUS
SHOWERS AND SCATTERED THUNDERSTORMS.
TUESDAY
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS 1 FOOT OR
LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SCATTERED SHOWERS
AND THUNDERSTORMS.
TUESDAY NIGHT
SOUTH WINDS 5 TO 10 KNOTS. 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. SEAS 1 FOOT OR LESS. NEARSHORE WATERS SMOOTH TO A LIGHT
CHOP. SCATTERED SHOWERS AND THUNDERSTORMS.
WEDNESDAY NIGHT
WINDS BECOMING EAST 5 TO 10 KNOTS. SEAS 1 FOOT
OR LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SCATTERED
SHOWERS AND THUNDERSTORMS.
THURSDAY
NORTHEAST WINDS 5 TO 10 KNOTS, BECOMING NORTHWEST.
SEAS 1 FOOT OR LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP.
NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
THURSDAY NIGHT
VARIABLE WINDS BECOMING NORTHEAST NEAR 5 KNOTS.
SEAS 1 FOOT OR LESS. NEARSHORE WATERS BECOMING SMOOTH. SCATTERED
SHOWERS AND THUNDERSTORMS.
FRIDAY AND FRIDAY NIGHT
NORTHEAST WINDS 5 TO 10 KNOTS. SEAS 1
FOOT OR LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SCATTERED
SHOWERS AND THUNDERSTORMS.
GMZ042>044-081430-
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-
1020 PM EDT SUN SEP 7 2025
OVERNIGHT
SOUTH TO SOUTHWEST WINDS NEAR 5 KNOTS. SEAS 1 FOOT
OR LESS. NEARSHORE WATERS SMOOTH. SCATTERED SHOWERS AND
THUNDERSTORMS.
MONDAY
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND
1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SCATTERED
SHOWERS AND THUNDERSTORMS.
MONDAY NIGHT
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS. SEAS
AROUND 1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. NUMEROUS
SHOWERS AND SCATTERED THUNDERSTORMS.
TUESDAY
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND
1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SCATTERED
SHOWERS AND THUNDERSTORMS.
TUESDAY NIGHT
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS. SEAS
AROUND 1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SCATTERED
SHOWERS AND THUNDERSTORMS.
WEDNESDAY
SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTHWEST TO
WEST. SEAS AROUND 1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT
CHOP. SCATTERED SHOWERS AND THUNDERSTORMS.
WEDNESDAY NIGHT
NORTH WINDS 5 TO 10 KNOTS, BECOMING NORTHEAST
TO EAST. SEAS AROUND 1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT
CHOP. SCATTERED SHOWERS AND THUNDERSTORMS.
THURSDAY
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS, BECOMING
VARIABLE. SEAS AROUND 1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT
CHOP, BECOMING SMOOTH. SCATTERED SHOWERS AND THUNDERSTORMS.
THURSDAY NIGHT
VARIABLE WINDS BECOMING NORTHEAST TO EAST 5 TO
10 KNOTS. SEAS AROUND 1 FOOT. NEARSHORE WATERS BECOMING SMOOTH TO
A LIGHT CHOP. SCATTERED SHOWERS AND THUNDERSTORMS.
FRIDAY
NORTHEAST WINDS 5 TO 10 KNOTS, BECOMING NORTHWEST TO
NORTH. SEAS AROUND 1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT
CHOP. SCATTERED SHOWERS AND THUNDERSTORMS.
FRIDAY NIGHT
NORTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND 1
FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. SCATTERED SHOWERS
AND THUNDERSTORMS.
GMZ052>055-072>075-081430-
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-
1020 PM EDT SUN SEP 7 2025
OVERNIGHT
SOUTH WINDS NEAR 5 KNOTS. SEAS AROUND 1 FOOT. WAVE
DETAIL: SOUTHEAST TO SOUTH 1 FOOT AT 4 SECONDS. SCATTERED SHOWERS
AND THUNDERSTORMS.
MONDAY
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND
1 FOOT. WAVE DETAIL: SOUTH 1 FOOT AT 3 SECONDS. SCATTERED SHOWERS
AND THUNDERSTORMS.
MONDAY 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.
TUESDAY
SOUTH TO SOUTHWEST WINDS NEAR 10 KNOTS, DECREASING TO 5
TO 10 KNOTS IN THE AFTERNOON. SEAS AROUND 1 FOOT. SCATTERED
SHOWERS AND THUNDERSTORMS.
TUESDAY NIGHT
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS. SEAS
AROUND 1 FOOT. SCATTERED SHOWERS AND THUNDERSTORMS.
WEDNESDAY
SOUTH WINDS 5 TO 10 KNOTS, BECOMING VARIABLE. SEAS
AROUND 1 FOOT. SCATTERED SHOWERS AND THUNDERSTORMS.
WEDNESDAY NIGHT
VARIABLE WINDS BECOMING EAST 5 TO 10 KNOTS.
SEAS AROUND 1 FOOT. SCATTERED SHOWERS AND THUNDERSTORMS.
THURSDAY
NORTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND 1 FOOT.
SCATTERED SHOWERS AND THUNDERSTORMS.
THURSDAY NIGHT
NORTHEAST WINDS 5 TO 10 KNOTS, BECOMING EAST.
SEAS AROUND 1 FOOT. SCATTERED SHOWERS AND THUNDERSTORMS.
FRIDAY
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS, BECOMING NORTH.
SEAS AROUND 1 FOOT. SCATTERED SHOWERS AND THUNDERSTORMS.
FRIDAY NIGHT
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS. SEAS
AROUND 1 FOOT. SCATTERED SHOWERS AND THUNDERSTORMS.
GMZ033-034-081430-
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-
1020 PM EDT SUN SEP 7 2025
OVERNIGHT
SOUTHWEST WINDS NEAR 5 KNOTS. SEAS AROUND 1 FOOT.
WAVE DETAIL: SOUTHWEST TO WEST 1 FOOT AT 4 SECONDS. SCATTERED
SHOWERS AND THUNDERSTORMS.
MONDAY
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS. SEAS AROUND
1 FOOT. WAVE DETAIL: SOUTHWEST TO WEST 1 FOOT AT 4 SECONDS.
NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
MONDAY NIGHT
SOUTH WINDS NEAR 5 KNOTS, INCREASING TO SOUTHEAST
TO SOUTH. SEAS AROUND 1 FOOT. WAVE DETAIL: SOUTHWEST 1 FOOT AT 4
SECONDS. NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
TUESDAY
SOUTH TO SOUTHWEST WINDS NEAR 10 KNOTS, DECREASING TO
5 TO 10 KNOTS. SEAS AROUND 1 FOOT. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS.
TUESDAY NIGHT
SOUTH WINDS 5 TO 10 KNOTS. SEAS AROUND 1 FOOT.
NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.
WEDNESDAY
SOUTH TO SOUTHWEST WINDS 5 TO 10 KNOTS, BECOMING
SOUTHWEST TO WEST. SEAS AROUND 1 FOOT. SCATTERED SHOWERS AND
THUNDERSTORMS.
WEDNESDAY NIGHT
VARIABLE WINDS BECOMING SOUTHEAST NEAR 5
KNOTS. SEAS 1 FOOT OR LESS. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS.
THURSDAY
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS, BECOMING
NORTHWEST TO NORTH. SEAS 1 FOOT OR LESS. SCATTERED SHOWERS AND
THUNDERSTORMS.
THURSDAY NIGHT
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS,
BECOMING EAST. SEAS AROUND 1 FOOT. SCATTERED SHOWERS AND
THUNDERSTORMS.
FRIDAY
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS, BECOMING NORTH
TO NORTHEAST. SEAS AROUND 1 FOOT. SCATTERED SHOWERS AND
THUNDERSTORMS.
FRIDAY NIGHT
NORTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND 1
FOOT. SCATTERED SHOWERS AND THUNDERSTORMS.
MJV
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