198  
FZUS52 KKEY 240226  
CWFKEY  
 
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS  
NATIONAL WEATHER SERVICE KEY WEST FL  
1026 PM EDT MON OCT 23 2017  
 
FLORIDA BAY...HAWK CHANNEL AND STRAITS OF FLORIDA FROM OCEAN REEF TO  
SOUTH OF DRY TORTUGAS...AND THE EXTREME SOUTHEASTERN GULF OF  
MEXICO...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.  
 
GMZ005-240830-  
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS  
1026 PM EDT MON OCT 23 2017  
   
SYNOPSIS
 
HIGH PRESSURE OVER THE NORTHWEST ATLANTIC WILL  
GRADUALLY SLIDE EASTWARD TONIGHT AND TUESDAY. A COLD FRONT WILL  
MOVE EASTWARD ACROSS THE GULF OF MEXICO AND REACH THE FLORIDA KEYS  
AROUND DAYBREAK ON WEDNESDAY. STRONG NORTH BREEZES ARE EXPECTED  
ACROSS ALL COASTAL WATERS WEDNESDAY AND WEDNESDAY NIGHT. FRESH  
BREEZES WILL VEER TO THE NORTHEAST THURSDAY AND THURSDAY NIGHT.  
GENTLE TO MODERATE BREEZES ARE EXPECTED FRIDAY THROUGH SATURDAY,  
BEFORE THE NEXT COLD FRONT.  
 
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM CURRENT, AS OF  
OCTOBER 21ST,  
 
19 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY.  
6 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS.  
1 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST.  
4 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY.  
6 NM SOUTH OF SOMBRERO KEY LIGHT...OFF MARATHON.  
5 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA.  
5 NM SOUTHEAST OF MOLASSES REEF LIGHT...OFF KEY LARGO.  
5 NM EAST OF CARYSFORT REEF LIGHT...OFF OCEAN REEF.  
 
GULF STREAM INFORMATION COURTESY OF THE NAVAL OCEANOGRAPHIC OFFICE.  
 

 
 
GMZ031-240830-  
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND  
BUTTONWOOD SOUND-  
1026 PM EDT MON OCT 23 2017  
   
OVERNIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS, DECREASING TO NEAR 10  
KNOTS. BAY WATERS A LIGHT TO MODERATE CHOP. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS DEVELOPING.   
TUESDAY
 
SOUTHEAST TO SOUTH WINDS NEAR 10 KNOTS. BAY WATERS A  
LIGHT CHOP. NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS.    
TUESDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS, BECOMING SOUTHWEST TO  
WEST AND INCREASING TO NEAR 15 KNOTS EARLY IN THE MORNING. BAY  
WATERS SMOOTH TO A LIGHT CHOP, BECOMING A MODERATE CHOP. NUMEROUS  
SHOWERS AND SCATTERED THUNDERSTORMS.    
WEDNESDAY
 
NORTHWEST TO NORTH WINDS NEAR 20 KNOTS. BAY WATERS  
ROUGH. SCATTERED SHOWERS IN THE MORNING.    
WEDNESDAY NIGHT
 
NORTH WINDS 20 TO 25 KNOTS. BAY WATERS VERY  
ROUGH.   
THURSDAY
 
NORTH TO NORTHEAST WINDS 15 TO 20 KNOTS. BAY WATERS  
CHOPPY.    
THURSDAY NIGHT
 
NORTHEAST WINDS NEAR 15 KNOTS. BAY WATERS A  
MODERATE CHOP.    
FRIDAY
 
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS. BAY WATERS  
CHOPPY. ISOLATED SHOWERS.    
FRIDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. BAY WATERS CHOPPY.  
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
SATURDAY
 
EAST TO SOUTHEAST WINDS NEAR 15 KNOTS. BAY WATERS A  
MODERATE CHOP. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
SATURDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS. BAY WATERS A LIGHT  
TO MODERATE CHOP. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.  
 

 
 
GMZ032-035-240830-  
BAYSIDE AND GULF SIDE FROM CRAIG KEY TO WEST END OF SEVEN MILE  
BRIDGE-  
GULF OF MEXICO FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON  
SHOAL OUT TO 5 FATHOMS-  
1026 PM EDT MON OCT 23 2017  
   
OVERNIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 2 FEET.  
NEARSHORE WATERS A LIGHT TO MODERATE CHOP. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS DEVELOPING.    
TUESDAY
 
SOUTHEAST TO SOUTH WINDS NEAR 10 KNOTS. SEAS AROUND 1  
FOOT. NEARSHORE WATERS A LIGHT CHOP. NUMEROUS SHOWERS AND  
ISOLATED THUNDERSTORMS.    
TUESDAY NIGHT
 
SOUTH WINDS 5 TO 10 KNOTS, BECOMING NORTHWEST TO  
NORTH AND INCREASING TO 15 TO 20 KNOTS EARLY IN THE MORNING. SEAS  
1 FOOT OR LESS, BUILDING TO 2 TO 4 FEET AFTER MIDNIGHT. NEARSHORE  
WATERS SMOOTH TO A LIGHT CHOP, BECOMING CHOPPY. NUMEROUS SHOWERS  
AND SCATTERED THUNDERSTORMS.    
WEDNESDAY
 
NORTH WINDS 20 TO 25 KNOTS. SEAS 3 TO 5 FEET, AS HIGH  
AS 7 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE WATERS VERY  
ROUGH. SCATTERED SHOWERS IN THE MORNING.   
WEDNESDAY NIGHT
 
NORTH WINDS NEAR 20 KNOTS. SEAS 2 TO 5 FEET.  
NEARSHORE WATERS ROUGH.    
THURSDAY
 
NORTH TO NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 2 TO  
4 FEET. NEARSHORE WATERS CHOPPY.    
THURSDAY NIGHT
 
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4  
FEET. NEARSHORE WATERS CHOPPY.    
FRIDAY
 
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 3  
FEET. NEARSHORE WATERS CHOPPY. ISOLATED SHOWERS.    
FRIDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 3 FEET.  
NEARSHORE WATERS CHOPPY. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.    
SATURDAY
 
EAST TO SOUTHEAST WINDS NEAR 15 KNOTS. SEAS 1 TO 3  
FEET. NEARSHORE WATERS A MODERATE CHOP. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS.    
SATURDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 2 FEET.  
NEARSHORE WATERS A LIGHT TO MODERATE CHOP. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS.  
 

 
 
GMZ042>044-240830-  
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-  
1026 PM EDT MON OCT 23 2017  
   
OVERNIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 3 FEET.  
NEARSHORE WATERS A LIGHT TO MODERATE CHOP. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS DEVELOPING.    
TUESDAY
 
SOUTHEAST TO SOUTH WINDS NEAR 10 KNOTS. SEAS 1 TO 2  
FEET. NEARSHORE WATERS A LIGHT CHOP. NUMEROUS SHOWERS AND ISOLATED  
THUNDERSTORMS.    
TUESDAY NIGHT
 
SOUTHEAST TO SOUTH WINDS 10 TO 15 KNOTS,  
BECOMING WEST TO NORTHWEST AND INCREASING TO NEAR 15 KNOTS EARLY  
IN THE MORNING. SEAS 1 TO 3 FEET, BUILDING TO 2 TO 3 FEET.  
NEARSHORE WATERS A LIGHT TO MODERATE CHOP. NUMEROUS SHOWERS AND  
SCATTERED THUNDERSTORMS.    
WEDNESDAY
 
NORTH WINDS 20 TO 25 KNOTS. SEAS 3 TO 4 FEET, EXCEPT  
6 TO 7 FEET WEST OF COSGROVE SHOAL LIGHT. NEARSHORE WATERS VERY  
ROUGH. SCATTERED SHOWERS IN THE MORNING.   
WEDNESDAY NIGHT
 
NORTH WINDS NEAR 20 KNOTS. SEAS 2 TO 4 FEET.  
NEARSHORE WATERS ROUGH.    
THURSDAY
 
NORTH TO NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 2 TO  
3 FEET. NEARSHORE WATERS CHOPPY.    
THURSDAY NIGHT
 
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 3  
FEET. NEARSHORE WATERS CHOPPY.    
FRIDAY
 
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4  
FEET. NEARSHORE WATERS CHOPPY. ISOLATED SHOWERS.    
FRIDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET.  
NEARSHORE WATERS CHOPPY. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.    
SATURDAY
 
EAST TO SOUTHEAST WINDS NEAR 15 KNOTS. SEAS 2 TO 3  
FEET. NEARSHORE WATERS A MODERATE CHOP. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS.    
SATURDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 3 FEET.  
NEARSHORE WATERS A LIGHT TO MODERATE CHOP. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS.  
 

 
 
GMZ052>055-072>075-240830-  
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-  
1026 PM EDT MON OCT 23 2017  
   
OVERNIGHT
 
SOUTHEAST WINDS NEAR 15 KNOTS, DECREASING TO 10 TO  
15 KNOTS. SEAS 3 TO 4 FEET, SUBSIDING TO 2 TO 3 FEET. SCATTERED  
SHOWERS AND ISOLATED THUNDERSTORMS DEVELOPING.    
TUESDAY
 
SOUTHEAST WINDS 10 TO 15 KNOTS, DECREASING TO NEAR 10  
KNOTS. SEAS 1 TO 3 FEET. NUMEROUS SHOWERS AND ISOLATED  
THUNDERSTORMS.    
TUESDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING SOUTHWEST  
TO WEST AND INCREASING TO 15 TO 20 KNOTS EARLY IN THE MORNING.  
SEAS 2 TO 3 FEET, BUILDING TO 4 TO 6 FEET AFTER MIDNIGHT.  
NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS.    
WEDNESDAY
 
NORTHWEST TO NORTH WINDS 20 TO 25 KNOTS. SEAS  
BUILDING TO 5 TO 9 FEET. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.    
WEDNESDAY NIGHT
 
NORTH WINDS 20 TO 25 KNOTS. SEAS 5 TO 8 FEET.  
ISOLATED SHOWERS.    
THURSDAY
 
NORTH TO NORTHEAST WINDS NEAR 20 KNOTS. SEAS 5 TO 7  
FEET. ISOLATED SHOWERS.    
THURSDAY NIGHT
 
NORTHEAST WINDS NEAR 20 KNOTS. SEAS 4 TO 7  
FEET. ISOLATED SHOWERS.    
FRIDAY
 
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6  
FEET. ISOLATED SHOWERS.    
FRIDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET.  
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
SATURDAY
 
EAST TO SOUTHEAST WINDS NEAR 15 KNOTS. SEAS 3 TO 5  
FEET. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
SATURDAY NIGHT
 
EAST WINDS NEAR 15 KNOTS. SEAS 3 TO 5 FEET.  
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.  
 

 
 
GMZ033-034-240830-  
GULF WATERS FROM EAST CAPE SABLE TO CHOKOLOSKEE 20 TO 60 NM OUT  
AND BEYOND 5 FATHOMS-  
GULF OF MEXICO INCLUDING DRY TORTUGAS AND REBECCA SHOAL CHANNEL-  
1026 PM EDT MON OCT 23 2017  
   
OVERNIGHT
 
SOUTHEAST WINDS NEAR 10 KNOTS. SEAS 1 TO 3 FEET.  
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
TUESDAY
 
SOUTHEAST WINDS NEAR 10 KNOTS, BECOMING VARIABLE IN  
THE AFTERNOON. SEAS 1 TO 3 FEET. NUMEROUS SHOWERS AND ISOLATED  
THUNDERSTORMS.   
TUESDAY NIGHT
 
NORTH WINDS 10 TO 15 KNOTS, INCREASING TO 20 TO  
25 KNOTS EARLY IN THE MORNING. SEAS 1 TO 3 FEET, BUILDING TO 4 TO  
7 FEET AFTER MIDNIGHT. NUMEROUS SHOWERS AND SCATTERED  
THUNDERSTORMS.   
WEDNESDAY
 
NORTH WINDS 20 TO 25 KNOTS. SEAS 5 TO 8 FEET,  
BUILDING TO 6 TO 10 FEET. SCATTERED SHOWERS IN THE MORNING.    
WEDNESDAY NIGHT
 
NORTH WINDS NEAR 20 KNOTS. SEAS 6 TO 8 FEET,  
SUBSIDING TO 5 TO 7 FEET AFTER MIDNIGHT.    
THURSDAY
 
NORTH TO NORTHEAST WINDS 15 TO 20 KNOTS. SEAS  
SUBSIDING TO 3 TO 6 FEET.    
THURSDAY NIGHT
 
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 5  
FEET.    
FRIDAY
 
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 5  
FEET. ISOLATED SHOWERS.    
FRIDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 5 FEET.  
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
SATURDAY
 
EAST TO SOUTHEAST WINDS NEAR 15 KNOTS. SEAS 3 TO 4  
FEET. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
SATURDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS. SEAS 2 TO 3 FEET.  
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.  
 

 
 
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