835
FZUS52 KKEY 300929
CWFKEY
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS
NATIONAL WEATHER SERVICE KEY WEST FL
429 AM EST SUN NOV 30 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.
GMZ005-302130-
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS
429 AM EST SUN NOV 30 2025
SYNOPSIS
STRONG SURFACE HIGH PRESSURE LOCATED JUST OFF THE NEW
ENGLAND COAST WILL CONTINUE TO PROMOTE FRESH TO STRONG NORTHEAST
TO EAST BREEZES EARLY THIS MORNING. AS THE HIGH CONTINUES
PROGRESSING EASTWARD THROUGH MONDAY, BREEZES WILL CONTINUE TO
SLACKEN AS WELL AS SHIFT TO THE EAST. ANOTHER HIGH WILL TAKE THE
PLACE OF THIS PREVIOUS HIGH FOR MONDAY NIGHT AND EARLY TUESDAY
KEEPING BREEZES GENTLE TO MODERATE. A DEVELOPING STORM SYSTEM ON
THE HEELS OF THIS HIGH TUESDAY WILL RESULT IN A WEAKENING OF THE
PRESSURE GRADIENT ACROSS THE KEYS THROUGH EARLY WEDNESDAY. ITS
CORRESPONDING COLD FRONT MAY TRY AND PUSH THROUGH THE KEYS MID TO
LATE WEEK RESULTING IN FRESHENING NORTH TO NORTHEAST BREEZES.
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF NOVEMBER
28...
28 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY.
20 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS.
17 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST.
15 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY.
15 NM SOUTHEAST OF SOMBRERO KEY LIGHT...OFF MARATHON.
10 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA.
9 NM SOUTHEAST OF MOLASSES REEF LIGHT...OFF KEY LARGO.
8 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.
GMZ031-302130-
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND
BUTTONWOOD SOUND-
429 AM EST SUN NOV 30 2025
..SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE
TODAY
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS, DECREASING TO 10
TO 15 KNOTS IN THE AFTERNOON. BAY WATERS CHOPPY, BECOMING A LIGHT
TO MODERATE CHOP. ISOLATED SHOWERS.
TONIGHT
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS. BAY WATERS A
LIGHT TO MODERATE CHOP. ISOLATED SHOWERS.
MONDAY
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS, BECOMING EAST.
BAY WATERS A LIGHT TO MODERATE CHOP. ISOLATED SHOWERS.
MONDAY NIGHT
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS. BAY
WATERS A LIGHT TO MODERATE CHOP.
TUESDAY
SOUTHEAST TO SOUTH WINDS NEAR 10 KNOTS, BECOMING SOUTH
TO SOUTHWEST IN THE AFTERNOON. BAY WATERS A LIGHT CHOP.
TUESDAY NIGHT
SOUTHWEST TO WEST WINDS 5 TO 10 KNOTS, BECOMING
WEST TO NORTHWEST AND DECREASING TO NEAR 5 KNOTS. BAY WATERS
SMOOTH TO A LIGHT CHOP, BECOMING SMOOTH.
WEDNESDAY
NORTHWEST TO NORTH WINDS NEAR 5 KNOTS. BAY WATERS
SMOOTH.
WEDNESDAY NIGHT
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. BAY
WATERS SMOOTH TO A LIGHT CHOP.
THURSDAY
NORTHEAST WINDS NEAR 10 KNOTS. BAY WATERS A LIGHT
CHOP.
THURSDAY NIGHT
NORTHEAST WINDS 10 TO 15 KNOTS. BAY WATERS A
LIGHT TO MODERATE CHOP.
GMZ032-302130-
BAYSIDE AND GULFSIDE FROM CRAIG KEY TO WEST END OF SEVEN MILE
BRIDGE-
429 AM EST SUN NOV 30 2025
..SMALL CRAFT SHOULD EXERCISE CAUTION UNTIL WINDS DECREASE
TODAY
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS, DECREASING TO
10 TO 15 KNOTS IN THE AFTERNOON. SEAS 2 TO 3 FEET, SUBSIDING TO 1
TO 2 FEET. NEARSHORE WATERS CHOPPY, BECOMING A LIGHT TO MODERATE
CHOP. ISOLATED SHOWERS.
TONIGHT
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 2
FEET. NEARSHORE WATERS A LIGHT TO MODERATE CHOP. ISOLATED
SHOWERS.
MONDAY
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS, BECOMING EAST.
SEAS 1 TO 2 FEET. NEARSHORE WATERS A LIGHT TO MODERATE CHOP.
ISOLATED SHOWERS.
MONDAY NIGHT
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO
2 FEET. NEARSHORE WATERS A LIGHT TO MODERATE CHOP.
TUESDAY
SOUTHEAST TO SOUTH WINDS NEAR 10 KNOTS, BECOMING SOUTH
TO SOUTHWEST AND DECREASING TO 5 TO 10 KNOTS IN THE AFTERNOON.
SEAS AROUND 1 FOOT. NEARSHORE WATERS A LIGHT CHOP, BECOMING SMOOTH
TO A LIGHT CHOP.
TUESDAY NIGHT
SOUTHWEST TO WEST WINDS NEAR 5 KNOTS, BECOMING
WEST TO NORTHWEST. SEAS 1 FOOT OR LESS. NEARSHORE WATERS SMOOTH.
WEDNESDAY
NORTHWEST TO NORTH WINDS 5 TO 10 KNOTS. SEAS 1 FOOT
OR LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP.
WEDNESDAY NIGHT
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS. SEAS
1 TO 2 FEET. NEARSHORE WATERS A LIGHT CHOP.
THURSDAY
NORTHEAST WINDS NEAR 10 KNOTS. SEAS 1 TO 2 FEET.
NEARSHORE WATERS A LIGHT CHOP.
THURSDAY NIGHT
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS. SEAS
1 TO 2 FEET. NEARSHORE WATERS A LIGHT TO MODERATE CHOP.
GMZ035-302130-
GULF OF AMERICA FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON
SHOAL OUT TO 5 FATHOMS-
429 AM EST SUN NOV 30 2025
..SMALL CRAFT ADVISORY IN EFFECT
TODAY
NORTHEAST TO EAST WINDS NEAR 20 KNOTS, DECREASING TO NEAR
15 KNOTS. SEAS 2 TO 4 FEET, OCCASIONALLY TO 5 FEET, SUBSIDING TO
2 TO 3 FEET. WEST OF THE MARQUESAS KEYS, SEAS 3 TO 5 FEET,
OCCASIONALLY TO 6 FEET, SUBSIDING TO 3 TO 4 FEET, OCCASIONALLY TO
5 FEET. NEARSHORE WATERS ROUGH, BECOMING A MODERATE CHOP. ISOLATED
SHOWERS.
TONIGHT
NORTHEAST TO EAST WINDS NEAR 15 KNOTS. SEAS 1 TO
2 FEET, EXCEPT AROUND 3 FEET WEST OF THE MARQUESAS KEYS.
NEARSHORE WATERS A MODERATE CHOP. ISOLATED SHOWERS.
MONDAY
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS, BECOMING EAST.
SEAS 1 TO 2 FEET, EXCEPT 2 TO 3 FEET WEST OF THE MARQUESAS KEYS.
NEARSHORE WATERS A LIGHT TO MODERATE CHOP. ISOLATED SHOWERS.
MONDAY NIGHT
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO
2 FEET, EXCEPT 2 TO 3 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE
WATERS A LIGHT TO MODERATE CHOP.
TUESDAY
SOUTHEAST TO SOUTH WINDS NEAR 10 KNOTS, BECOMING SOUTH
TO SOUTHWEST AND DECREASING TO 5 TO 10 KNOTS IN THE AFTERNOON.
SEAS AROUND 1 FOOT, EXCEPT AROUND 2 FEET WEST OF THE MARQUESAS
KEYS. NEARSHORE WATERS A LIGHT CHOP, BECOMING SMOOTH TO A LIGHT
CHOP.
TUESDAY NIGHT
SOUTHWEST TO WEST WINDS NEAR 5 KNOTS, BECOMING
WEST TO NORTHWEST. SEAS 1 FOOT OR LESS, EXCEPT AROUND 1 FOOT WEST
OF THE MARQUESAS KEYS. NEARSHORE WATERS SMOOTH.
WEDNESDAY
NORTHWEST TO NORTH WINDS 5 TO 10 KNOTS. SEAS 1 FOOT
OR LESS, EXCEPT 1 TO 2 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE
WATERS SMOOTH TO A LIGHT CHOP.
WEDNESDAY NIGHT
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS. SEAS
1 TO 2 FEET, EXCEPT 2 TO 3 FEET WEST OF THE MARQUESAS KEYS.
NEARSHORE WATERS A LIGHT CHOP.
THURSDAY
NORTHEAST WINDS NEAR 10 KNOTS. SEAS 1 TO 2 FEET,
EXCEPT 2 TO 3 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE WATERS A
LIGHT CHOP.
THURSDAY NIGHT
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS. SEAS
1 TO 2 FEET, EXCEPT 2 TO 3 FEET WEST OF THE MARQUESAS KEYS.
NEARSHORE WATERS A LIGHT TO MODERATE CHOP.
GMZ042>044-302130-
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-
429 AM EST SUN NOV 30 2025
..SMALL CRAFT ADVISORY IN EFFECT
TODAY
NORTHEAST TO EAST WINDS NEAR 20 KNOTS, DECREASING TO NEAR
15 KNOTS. SEAS 3 TO 5 FEET, OCCASIONALLY TO 6 FEET, SUBSIDING TO
2 TO 4 FEET, OCCASIONALLY TO 5 FEET. NEARSHORE WATERS ROUGH,
BECOMING A MODERATE CHOP. SCATTERED SHOWERS.
TONIGHT
NORTHEAST TO EAST WINDS NEAR 15 KNOTS. SEAS AROUND 3
FEET. NEARSHORE WATERS A MODERATE CHOP. ISOLATED SHOWERS.
MONDAY
NORTHEAST TO EAST WINDS NEAR 15 KNOTS, BECOMING EAST.
SEAS AROUND 3 FEET. NEARSHORE WATERS A MODERATE CHOP. ISOLATED
SHOWERS.
MONDAY NIGHT
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO
3 FEET. NEARSHORE WATERS A LIGHT TO MODERATE CHOP. ISOLATED
SHOWERS.
TUESDAY
SOUTHEAST TO SOUTH WINDS 10 TO 15 KNOTS, BECOMING
SOUTH TO SOUTHWEST AND DECREASING TO 5 TO 10 KNOTS IN THE
AFTERNOON. SEAS 2 TO 3 FEET, SUBSIDING TO 1 TO 2 FEET. NEARSHORE
WATERS A LIGHT TO MODERATE CHOP, BECOMING SMOOTH TO A LIGHT CHOP.
TUESDAY NIGHT
SOUTHWEST TO WEST WINDS NEAR 5 KNOTS, BECOMING
WEST TO NORTHWEST. SEAS AROUND 1 FOOT. NEARSHORE WATERS SMOOTH.
WEDNESDAY
NORTH WINDS 5 TO 10 KNOTS. SEAS 1 TO 2 FEET.
NEARSHORE WATERS SMOOTH TO A LIGHT CHOP.
WEDNESDAY NIGHT
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS,
INCREASING TO NEAR 10 KNOTS. SEAS 1 TO 2 FEET, EXCEPT BUILDING TO
2 TO 3 FEET WEST OF COSGROVE SHOAL LIGHT. NEARSHORE WATERS SMOOTH
TO A LIGHT CHOP, BECOMING A LIGHT CHOP.
THURSDAY
NORTHEAST WINDS NEAR 10 KNOTS. SEAS 1 TO 2 FEET,
EXCEPT 2 TO 3 FEET WEST OF COSGROVE SHOAL LIGHT. NEARSHORE WATERS
A LIGHT CHOP.
THURSDAY NIGHT
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS. SEAS
2 TO 3 FEET. NEARSHORE WATERS A LIGHT TO MODERATE CHOP.
GMZ052>055-072>075-302130-
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-
429 AM EST SUN NOV 30 2025
..SMALL CRAFT ADVISORY IN EFFECT
TODAY
NORTHEAST TO EAST WINDS NEAR 20 KNOTS, DECREASING TO NEAR
15 KNOTS. SEAS 6 TO 8 FEET, OCCASIONALLY TO 10 FEET, SUBSIDING TO
4 TO 6 FEET, OCCASIONALLY TO 8 FEET. WAVE DETAIL: NORTHEAST TO
EAST 7 FEET AT 8 SECONDS, BECOMING NORTHEAST TO EAST 6 FEET AT 7
SECONDS. SCATTERED SHOWERS.
TONIGHT
NORTHEAST TO EAST WINDS NEAR 15 KNOTS. SEAS 3 TO
5 FEET, OCCASIONALLY TO 6 FEET. WAVE DETAIL: NORTHEAST TO EAST 5
FEET AT 7 SECONDS. SCATTERED SHOWERS.
MONDAY
EAST WINDS NEAR 15 KNOTS. SEAS 3 TO 4 FEET,
OCCASIONALLY TO 5 FEET. WAVE DETAIL: NORTHEAST TO EAST 4 FEET AT
6 SECONDS. SCATTERED SHOWERS.
MONDAY NIGHT
EAST TO SOUTHEAST WINDS NEAR 15 KNOTS. SEAS 3 TO
4 FEET, OCCASIONALLY TO 5 FEET. ISOLATED SHOWERS.
TUESDAY
SOUTHEAST TO SOUTH WINDS 10 TO 15 KNOTS, BECOMING
SOUTH TO SOUTHWEST AND DECREASING TO 5 TO 10 KNOTS IN THE
AFTERNOON. SEAS 3 TO 4 FEET, OCCASIONALLY TO 5 FEET, SUBSIDING TO
2 TO 3 FEET.
TUESDAY NIGHT
WEST TO NORTHWEST WINDS NEAR 5 KNOTS. SEAS 1 TO
2 FEET. ISOLATED SHOWERS.
WEDNESDAY
NORTH TO NORTHEAST WINDS 5 TO 10 KNOTS. SEAS AROUND 2
FEET.
WEDNESDAY NIGHT
NORTHEAST WINDS NEAR 10 KNOTS. SEAS 2 TO
3 FEET.
THURSDAY
NORTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.
THURSDAY NIGHT
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS. SEAS
2 TO 4 FEET, OCCASIONALLY TO 5 FEET.
GMZ033-034-302130-
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-
429 AM EST SUN NOV 30 2025
..SMALL CRAFT ADVISORY IN EFFECT
TODAY
NORTHEAST TO EAST WINDS 20 TO 25 KNOTS, DECREASING TO 15
TO 20 KNOTS DURING THE LATE MORNING, THEN DECREASING TO 10 TO 15
KNOTS IN THE AFTERNOON. SEAS 4 TO 6 FEET, OCCASIONALLY TO 8 FEET,
SUBSIDING TO 2 TO 4 FEET, OCCASIONALLY TO 6 FEET. WAVE DETAIL:
NORTHEAST TO EAST 6 FEET AT 5 SECONDS. ISOLATED SHOWERS.
TONIGHT
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS, INCREASING TO
NEAR 15 KNOTS. SEAS 2 TO 3 FEET. WAVE DETAIL: NORTHEAST TO EAST 3
FEET AT 4 SECONDS. ISOLATED SHOWERS.
MONDAY
NORTHEAST TO EAST WINDS NEAR 15 KNOTS, BECOMING EAST AND
DECREASING TO 10 TO 15 KNOTS. SEAS 2 TO 3 FEET. WAVE DETAIL:
NORTHEAST TO EAST 3 FEET AT 4 SECONDS. ISOLATED SHOWERS.
MONDAY NIGHT
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO
3 FEET. ISOLATED SHOWERS.
TUESDAY
SOUTHEAST TO SOUTH WINDS 10 TO 15 KNOTS, BECOMING
SOUTHWEST AND DECREASING TO 5 TO 10 KNOTS IN THE AFTERNOON. SEAS
1 TO 3 FEET, SUBSIDING TO 1 TO 2 FEET. ISOLATED SHOWERS.
TUESDAY NIGHT
WEST WINDS 5 TO 10 KNOTS, BECOMING NORTHWEST TO
NORTH. SEAS 1 TO 2 FEET.
WEDNESDAY
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS. SEAS 1 TO 3
FEET.
WEDNESDAY NIGHT
NORTH TO NORTHEAST WINDS 10 TO 15 KNOTS,
DECREASING TO NEAR 10 KNOTS. SEAS 2 TO 3 FEET.
THURSDAY
NORTHEAST WINDS NEAR 10 KNOTS, DECREASING TO 5 TO 10
KNOTS. SEAS 2 TO 3 FEET, SUBSIDING TO AROUND 2 FEET.
THURSDAY NIGHT
NORTHEAST TO EAST WINDS 5 TO 10 KNOTS,
INCREASING TO 10 TO 15 KNOTS. SEAS AROUND 2 FEET, BUILDING TO 2
TO 3 FEET.
MJV
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