669  
FZUS52 KKEY 022125  
CWFKEY  
 
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS  
NATIONAL WEATHER SERVICE KEY WEST FL  
425 PM EST TUE DEC 2 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.  
 
GMZ005-030930-  
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS  
425 PM EST TUE DEC 2 2025  
   
SYNOPSIS
 
A DEVELOPING LOW PRESSURE SYSTEM EXTENDS FROM THE  
CAROLINAS TO THE FLORIDA PANHANDLE. A CORRESPONDING COLD FRONT IS  
EXPECTED TO PRESS THROUGH THE KEYS LATE OVERNIGHT INTO WEDNESDAY  
MORNING. IN THE WAKE, BREEZES WILL FRESHEN OUT OF THE NORTH TO  
NORTHEAST WEDNESDAY. ANOTHER SURFACE HIGH BUILDS BACK IN FOLLOWING  
THE FRONT WITH GENTLE BROADLY SOUTHERN BREEZES RETURNING IN TIME  
FOR THE WEEKEND. THERE IS THE POTENTIAL FOR ANOTHER FRONTAL  
PASSAGE SUNDAY AFTERNOON AND EVENING.  
 
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.  
 

 
 
GMZ031-030930-  
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND  
BUTTONWOOD SOUND-  
425 PM EST TUE DEC 2 2025  
   
TONIGHT
 
SOUTHWEST WINDS NEAR 10 KNOTS EARLY, BECOMING  
SOUTHWEST TO WEST 5 TO 10 KNOTS IN THE EVENING, THEN BECOMING  
NORTHWEST NEAR 5 KNOTS AFTER MIDNIGHT. BAY WATERS A LIGHT CHOP,  
BECOMING SMOOTH. PATCHY FOG DEVELOPING AFTER MIDNIGHT.   
WEDNESDAY
 
VARIABLE WINDS NEAR 5 KNOTS. BAY WATERS SMOOTH.  
PATCHY FOG IN THE MORNING.   
WEDNESDAY NIGHT
 
WINDS BECOMING NORTH TO NORTHEAST AND  
INCREASING TO 5 TO 10 KNOTS. BAY WATERS BECOMING SMOOTH TO A  
LIGHT CHOP.    
THURSDAY
 
NORTHEAST TO EAST WINDS NEAR 10 KNOTS. BAY WATERS A  
LIGHT CHOP.    
THURSDAY NIGHT
 
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS. BAY  
WATERS A LIGHT TO MODERATE CHOP.    
FRIDAY
 
EAST WINDS 10 TO 15 KNOTS, BECOMING EAST TO SOUTHEAST  
NEAR 10 KNOTS. BAY WATERS A LIGHT TO MODERATE CHOP, BECOMING A  
LIGHT CHOP.   
FRIDAY NIGHT
 
EAST TO SOUTHEAST WINDS 5 TO 10 KNOTS. BAY WATERS  
SMOOTH TO A LIGHT CHOP.    
SATURDAY
 
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS. BAY WATERS  
SMOOTH TO A LIGHT CHOP.    
SATURDAY NIGHT
 
SOUTHEAST TO SOUTH WINDS INCREASING TO NEAR 10  
KNOTS. BAY WATERS BECOMING A LIGHT CHOP. ISOLATED SHOWERS.    
SUNDAY
 
SOUTHWEST WINDS 10 TO 15 KNOTS. BAY WATERS A LIGHT TO  
MODERATE CHOP. SCATTERED SHOWERS.    
SUNDAY NIGHT
 
WEST TO NORTHWEST WINDS 10 TO 15 KNOTS. BAY  
WATERS A LIGHT TO MODERATE CHOP. SCATTERED SHOWERS.  
 

 
 
GMZ032-035-030930-  
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-  
425 PM EST TUE DEC 2 2025  
   
TONIGHT
 
SOUTHWEST TO WEST WINDS 5 TO 10 KNOTS, BECOMING  
WEST TO NORTHWEST NEAR 5 KNOTS. SEAS 1 FOOT OR LESS. NEARSHORE  
WATERS SMOOTH TO A LIGHT CHOP, BECOMING SMOOTH. ISOLATED SHOWERS.  
PATCHY FOG DEVELOPING AFTER MIDNIGHT.   
WEDNESDAY
 
NORTH WINDS INCREASING TO 5 TO 10 KNOTS. SEAS  
BUILDING TO AROUND 1 FOOT, EXCEPT BUILDING TO 1 TO 2 FEET WEST OF  
THE MARQUESAS KEYS. NEARSHORE WATERS BECOMING SMOOTH TO A LIGHT  
CHOP. PATCHY FOG IN THE MORNING.   
WEDNESDAY NIGHT
 
NORTHWEST TO NORTH WINDS NEAR 10 KNOTS,  
BECOMING NORTH TO NORTHEAST 10 TO 15 KNOTS. SEAS 1 TO 2 FEET,  
EXCEPT BUILDING TO 2 TO 3 FEET WEST OF THE MARQUESAS KEYS.  
NEARSHORE WATERS A LIGHT CHOP, BECOMING A LIGHT TO MODERATE CHOP.    
THURSDAY
 
NORTHEAST TO EAST 10 TO 15 KNOTS, BRIEFLY DECREASING  
TO 5 TO 10 KNOTS IN THE AFTERNOON. SEAS 1 TO 2 FEET. WEST OF THE  
MARQUESAS KEYS, SEAS 2 TO 3 FEET, SUBSIDING TO AROUND 2 FEET.  
NEARSHORE WATERS A LIGHT TO MODERATE CHOP, BECOMING SMOOTH TO A  
LIGHT CHOP.   
THURSDAY NIGHT
 
NORTHEAST TO EAST WINDS NEAR 10 KNOTS,  
INCREASING TO 10 TO 15 KNOTS. SEAS 1 TO 2 FEET. NEARSHORE WATERS  
A LIGHT CHOP, BECOMING A LIGHT TO MODERATE CHOP.    
FRIDAY
 
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS, BECOMING EAST  
TO SOUTHEAST NEAR 10 KNOTS. SEAS 1 TO 2 FEET, SUBSIDING TO AROUND  
1 FOOT. NEARSHORE WATERS A LIGHT TO MODERATE CHOP, BECOMING A  
LIGHT CHOP.   
FRIDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS SUBSIDING TO 1  
FOOT OR LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. ISOLATED  
SHOWERS.    
SATURDAY
 
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS. SEAS 1 FOOT  
OR LESS. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP. ISOLATED  
SHOWERS.    
SATURDAY NIGHT
 
SOUTHEAST TO SOUTH WINDS INCREASING TO NEAR 10  
KNOTS. SEAS BUILDING TO AROUND 1 FOOT, EXCEPT BUILDING TO 1 TO 2  
FEET WEST OF THE MARQUESAS KEYS. NEARSHORE WATERS BECOMING A  
LIGHT CHOP. ISOLATED SHOWERS.   
SUNDAY
 
SOUTHWEST 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. SCATTERED SHOWERS.   
SUNDAY NIGHT
 
WEST TO NORTHWEST 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. SCATTERED SHOWERS.  
 

 
 
GMZ042>044-030930-  
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-  
425 PM EST TUE DEC 2 2025  
   
TONIGHT
 
SOUTHWEST WINDS 10 TO 15 KNOTS EARLY, BECOMING  
SOUTHWEST TO WEST NEAR 10 KNOTS IN THE EVENING, THEN BECOMING WEST  
TO NORTHWEST 5 TO 10 KNOTS AFTER MIDNIGHT. SEAS AROUND 2 FEET,  
SUBSIDING TO AROUND 1 FOOT. NEARSHORE WATERS SMOOTH TO A LIGHT TO  
MODERATE CHOP, BECOMING SMOOTH TO A LIGHT CHOP. ISOLATED SHOWERS.   
WEDNESDAY
 
NORTH WINDS 5 TO 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. PATCHY FOG IN THE MORNING.    
WEDNESDAY NIGHT
 
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS,  
INCREASING TO 10 TO 15 KNOTS. SEAS 1 TO 2 FEET, EXCEPT BUILDING TO  
2 TO 3 FEET WEST OF COSGROVE SHOAL LIGHT. NEARSHORE WATERS A  
LIGHT CHOP, BECOMING A LIGHT TO MODERATE CHOP.   
THURSDAY
 
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS. SEAS 1 TO  
2 FEET. WEST OF COSGROVE SHOAL LIGHT, SEAS 2 TO 3 FEET, SUBSIDING  
TO AROUND 2 FEET. NEARSHORE WATERS A LIGHT TO MODERATE CHOP.   
THURSDAY NIGHT
 
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS. SEAS  
AROUND 2 FEET. NEARSHORE WATERS A LIGHT TO MODERATE CHOP.    
FRIDAY
 
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS, DECREASING TO  
NEAR 10 KNOTS. SEAS SUBSIDING TO 1 TO 2 FEET. NEARSHORE WATERS A  
LIGHT TO MODERATE CHOP, BECOMING A LIGHT CHOP.   
FRIDAY NIGHT
 
SOUTHEAST WINDS NEAR 10 KNOTS. SEAS 1 TO 2 FEET.  
NEARSHORE WATERS A LIGHT CHOP. ISOLATED SHOWERS.    
SATURDAY
 
SOUTHEAST TO SOUTH WINDS NEAR 10 KNOTS. SEAS 1 TO 2  
FEET. NEARSHORE WATERS A LIGHT CHOP. ISOLATED SHOWERS.    
SATURDAY NIGHT
 
SOUTHEAST WINDS NEAR 10 KNOTS, BECOMING SOUTH  
10 TO 15 KNOTS. SEAS 1 TO 2 FEET, BUILDING TO AROUND 2 FEET.  
NEARSHORE WATERS A LIGHT CHOP, BECOMING A LIGHT TO MODERATE CHOP.  
ISOLATED SHOWERS.   
SUNDAY
 
SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.  
NEARSHORE WATERS A LIGHT TO MODERATE CHOP. SCATTERED SHOWERS.    
SUNDAY NIGHT
 
WEST TO NORTHWEST WINDS 10 TO 15 KNOTS. SEAS 1 TO  
2 FEET, EXCEPT 2 TO 3 FEET WEST OF COSGROVE SHOAL LIGHT.  
NEARSHORE WATERS A LIGHT TO MODERATE CHOP. SCATTERED SHOWERS.  
 

 
 
GMZ052>055-072>075-030930-  
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-  
425 PM EST TUE DEC 2 2025  
   
TONIGHT
 
SOUTHWEST TO WEST WINDS 10 TO 15 KNOTS EARLY, BECOMING  
WEST NEAR 10 KNOTS IN THE EVENING, THEN BECOMING WEST TO NORTHWEST  
5 TO 10 KNOTS. SEAS 2 TO 3 FEET, SUBSIDING TO 1 TO 2 FEET. WAVE  
DETAIL: SOUTHWEST TO WEST 2 FEET AT 4 SECONDS. ISOLATED SHOWERS.    
WEDNESDAY
 
NORTH WINDS 5 TO 10 KNOTS. SEAS 1 TO 2 FEET. WAVE  
DETAIL: NORTHWEST TO NORTH 1 FOOT AT 4 SECONDS. ISOLATED SHOWERS.   
WEDNESDAY NIGHT
 
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS,  
INCREASING TO 10 TO 15 KNOTS. SEAS BUILDING TO 2 TO 3 FEET. WAVE  
DETAIL: NORTH TO NORTHEAST 2 FEET AT 3 SECONDS AND WEST TO  
NORTHWEST 2 FEET AT 6 SECONDS.    
THURSDAY
 
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO  
3 FEET.    
THURSDAY NIGHT
 
NORTHEAST TO EAST WINDS NEAR 15 KNOTS. SEAS 2  
TO 4 FEET.    
FRIDAY
 
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO  
3 FEET.    
FRIDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.  
ISOLATED SHOWERS.    
SATURDAY
 
SOUTHEAST WINDS NEAR 10 KNOTS. SEAS AROUND 2 FEET,  
SUBSIDING TO 1 TO 2 FEET. ISOLATED SHOWERS.    
SATURDAY NIGHT
 
EAST TO SOUTHEAST WINDS NEAR 10 KNOTS, BECOMING  
SOUTH 10 TO 15 KNOTS. SEAS 1 TO 3 FEET. SCATTERED SHOWERS.    
SUNDAY
 
SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.  
SCATTERED SHOWERS.    
SUNDAY NIGHT
 
WEST TO NORTHWEST WINDS 10 TO 15 KNOTS. SEAS 2 TO  
3 FEET. SCATTERED SHOWERS.  
 

 
 
GMZ033-034-030930-  
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-  
425 PM EST TUE DEC 2 2025  
   
TONIGHT
 
SOUTHWEST TO WEST WINDS NEAR 10 KNOTS, BECOMING WEST TO  
NORTHWEST 5 TO 10 KNOTS. SEAS 1 TO 2 FEET. WAVE DETAIL: SOUTHWEST  
2 FEET AT 4 SECONDS. ISOLATED SHOWERS.    
WEDNESDAY
 
NORTH TO NORTHEAST WINDS NEAR 10 KNOTS. SEAS BUILDING  
TO AROUND 2 FEET. WAVE DETAIL: WEST TO NORTHWEST 2 FEET AT 6  
SECONDS. ISOLATED SHOWERS.    
WEDNESDAY NIGHT
 
NORTH TO NORTHEAST WINDS 10 TO 15 KNOTS. SEAS  
2 TO 3 FEET. WAVE DETAIL: NORTHWEST 3 FEET AT 6 SECONDS.    
THURSDAY
 
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS, BRIEFLY  
DECREASING TO 5 TO 10 KNOTS IN THE AFTERNOON. SEAS 2 TO 3 FEET,  
SUBSIDING TO 1 TO 2 FEET.   
THURSDAY NIGHT
 
NORTHEAST TO EAST WINDS NEAR 10 KNOTS,  
INCREASING TO 10 TO 15 KNOTS. SEAS 1 TO 2 FEET, BUILDING TO AROUND  
2 FEET.   
FRIDAY
 
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS, DECREASING TO  
NEAR 10 KNOTS. SEAS SUBSIDING TO 1 TO 2 FEET.    
FRIDAY NIGHT
 
SOUTHEAST WINDS 5 TO 10 KNOTS. SEAS 1 TO 2 FEET,  
SUBSIDING TO AROUND 1 FOOT. ISOLATED SHOWERS.    
SATURDAY
 
SOUTHEAST TO SOUTH WINDS 5 TO 10 KNOTS. SEAS AROUND  
1 FOOT. ISOLATED SHOWERS.    
SATURDAY NIGHT
 
SOUTHEAST TO SOUTH WINDS NEAR 10 KNOTS,  
BECOMING SOUTH 10 TO 15 KNOTS. SEAS 1 TO 2 FEET. SCATTERED  
SHOWERS.    
SUNDAY
 
SOUTHWEST WINDS 10 TO 15 KNOTS. SEAS BUILDING TO 2 TO 3  
FEET. SCATTERED SHOWERS.    
SUNDAY NIGHT
 
WEST TO NORTHWEST WINDS 10 TO 15 KNOTS, INCREASING  
TO NEAR 15 KNOTS. SEAS 2 TO 3 FEET. ISOLATED SHOWERS.  
 

 
 
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