107  
FZUS52 KKEY 191531  
CWFKEY  
 
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS  
NATIONAL WEATHER SERVICE KEY WEST FL  
1031 AM EST SUN FEB 19 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.  
 
GMZ005-192130-  
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS  
1031 AM EST SUN FEB 19 2017  
   
SYNOPSIS
 
A RIDGE OF HIGH PRESSURE WILL REACH THE FLORIDA  
PENINSULA THIS AFTERNOON AND REMAIN NORTH OF OUR AREA THROUGH  
TUESDAY. THEREAFTER...A TROUGH OF LOW PRESSURE WILL DEVELOP OVER  
THE CENTRAL GULF OF MEXICO AND GRADUALLY APPROACH THE FLORIDA KEYS  
WATERS WEDNESDAY THROUGH THURSDAY.  
 
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM CURRENT...AS OF  
FEBRUARY EIGHTEENTH...  
 
30 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY.  
20 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS.  
23 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST.  
26 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY.  
26 NM SOUTH OF SOMBRERO KEY LIGHT...OFF MARATHON.  
14 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA.  
11 NM SOUTHEAST OF MOLASSES REEF LIGHT...OFF KEY LARGO.  
9 NM EAST OF CARYSFORT REEF LIGHT...OFF OCEAN REEF.  
 
GULF STREAM INFORMATION COURTESY OF THE NAVAL OCEANOGRAPHIC OFFICE.  
 

 
 
GMZ031-192130-  
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND  
BUTTONWOOD SOUND-  
1031 AM EST SUN FEB 19 2017  
   
THIS AFTERNOON...VARIABLE WINDS NEAR 5 KNOTS
 
BECOMING NORTHWEST  
NEAR 10 KNOTS LATE. BAY WATERS SMOOTH...BECOMING TO A LIGHT CHOP  
LATE.   
TONIGHT...NORTHWEST TO NORTH WINDS 10 TO 15 KNOTS
 
BECOMING  
NORTH TO NORTHEAST NEAR 15 KNOTS. BAY WATERS A LIGHT TO MODERATE  
CHOP...BECOMING A MODERATE CHOP.   
MONDAY AND MONDAY NIGHT
 
NORTHEAST TO EAST WINDS NEAR 15 KNOTS.  
BAY WATERS A MODERATE CHOP.    
TUESDAY
 
EAST WINDS 10 TO 15 KNOTS. BAY WATERS A LIGHT TO  
MODERATE CHOP. ISOLATED SHOWERS.    
TUESDAY NIGHT AND WEDNESDAY
 
EAST TO SOUTHEAST WINDS 10 TO 15  
KNOTS. BAY WATERS A LIGHT TO MODERATE CHOP. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS.    
WEDNESDAY NIGHT...SOUTHEAST WINDS NEAR 15 KNOTS
 
BECOMING 10  
TO 15 KNOTS LATE. BAY WATERS A MODERATE CHOP...BECOMING A LIGHT TO  
MODERATE CHOP. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.   
THURSDAY...SOUTHEAST WINDS 10 TO 15 KNOTS
 
BECOMING NEAR 10  
KNOTS LATE. BAY WATERS A LIGHT TO MODERATE CHOP...BECOMING A LIGHT  
CHOP LATE. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
THURSDAY NIGHT
 
SOUTHEAST TO SOUTH WINDS NEAR 10 KNOTS. BAY  
WATERS A LIGHT CHOP. ISOLATED SHOWERS.  
 

 
 
GMZ032-035-192130-  
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-  
1031 AM EST SUN FEB 19 2017  
   
THIS AFTERNOON...VARIABLE WINDS NEAR 5 KNOTS
 
BECOMING NORTHWEST  
NEAR 10 KNOTS LATE. SEAS 1 FOOT OR LESS. NEARSHORE WATERS  
SMOOTH...BECOMING A LIGHT CHOP.   
TONIGHT...NORTHWEST TO NORTH WINDS 10 TO 15 KNOTS
 
BECOMING  
NORTH TO NORTHEAST NEAR 15 KNOTS. SEAS AROUND 1 FOOT...BUILDING TO  
1 TO 2 FEET. NEARSHORE WATERS A LIGHT TO MODERATE CHOP...BECOMING  
A MODERATE CHOP.   
MONDAY AND MONDAY NIGHT
 
NORTHEAST TO EAST WINDS NEAR 15 KNOTS.  
SEAS 1 TO 3 FEET. NEARSHORE WATERS A MODERATE CHOP.    
TUESDAY
 
EAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 2 FEET. NEARSHORE  
WATERS A LIGHT TO MODERATE CHOP. ISOLATED SHOWERS.    
TUESDAY NIGHT AND WEDNESDAY
 
EAST TO SOUTHEAST WINDS 10 TO 15  
KNOTS. SEAS 1 TO 2 FEET. NEARSHORE WATERS A LIGHT TO MODERATE  
CHOP. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
WEDNESDAY NIGHT...EAST TO SOUTHEAST WINDS NEAR 15 KNOTS
 
BECOMING  
10 TO 15 KNOTS LATE. SEAS 2 TO 3 FEET...SUBSIDING TO AROUND 1  
FOOT. NEARSHORE WATERS CHOPPY...BECOMING A LIGHT TO MODERATE CHOP  
LATE. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.   
THURSDAY...SOUTHEAST WINDS 10 TO 15 KNOTS
 
BECOMING NEAR 10 KNOTS  
LATE. SEAS AROUND 1 FOOT. NEARSHORE WATERS A LIGHT TO MODERATE  
CHOP...BECOMING A LIGHT CHOP. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.   
THURSDAY NIGHT
 
SOUTHEAST TO SOUTH WINDS NEAR 10 KNOTS. SEAS 1  
FOOT OR LESS. NEARSHORE WATERS A LIGHT CHOP. ISOLATED SHOWERS.  
 

 
 
GMZ042>044-192130-  
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-  
1031 AM EST SUN FEB 19 2017  
   
THIS AFTERNOON...VARIABLE WINDS NEAR 5 KNOTS
 
BECOMING NORTHWEST  
NEAR 10 KNOTS LATE. SEAS AROUND 1 FOOT. NEARSHORE WATERS  
SMOOTH...BECOMING A LIGHT CHOP.   
TONIGHT
 
NORTHWEST TO NORTH WINDS INCREASING TO NEAR 15 KNOTS.  
SEAS BUILDING TO 2 TO 3 FEET. NEARSHORE WATERS BECOMING A  
MODERATE CHOP.   
MONDAY AND MONDAY NIGHT
 
NORTHEAST TO EAST WINDS NEAR 15 KNOTS  
AND GUSTY. SEAS 2 TO 3 FEET. NEARSHORE WATERS A MODERATE CHOP TO  
CHOPPY.   
TUESDAY
 
EAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 3 FEET. NEARSHORE  
WATERS A LIGHT TO MODERATE CHOP. ISOLATED SHOWERS.    
TUESDAY NIGHT AND WEDNESDAY
 
EAST TO SOUTHEAST WINDS NEAR 15  
KNOTS AND GUSTY. SEAS 2 TO 3 FEET. NEARSHORE WATERS A MODERATE  
CHOP TO CHOPPY. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
WEDNESDAY NIGHT
 
SOUTHEAST WINDS NEAR 15 KNOTS AND  
GUSTY...BECOMING 10 TO 15 KNOTS LATE. SEAS 2 TO 3 FEET...SUBSIDING  
TO 1 TO 2 FEET. NEARSHORE WATERS A MODERATE CHOP...BECOMING A  
LIGHT TO MODERATE CHOP. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.    
THURSDAY...SOUTHEAST WINDS 10 TO 15 KNOTS
 
BECOMING NEAR 5  
KNOTS LATE. SEAS 1 TO 2 FEET...SUBSIDING TO AROUND 1 FOOT.  
NEARSHORE WATERS A LIGHT TO MODERATE CHOP...BECOMING SMOOTH LATE.  
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
THURSDAY NIGHT
 
SOUTHEAST TO SOUTH WINDS NEAR 10 KNOTS. SEAS  
AROUND 1 FOOT. NEARSHORE WATERS A LIGHT CHOP. ISOLATED SHOWERS.  
 

 
 
GMZ052>055-072>075-192130-  
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-  
1031 AM EST SUN FEB 19 2017  
   
THIS AFTERNOON
 
VARIABLE WINDS NEAR 5 KNOTS BECOMING NORTHWEST  
TO NORTH NEAR 10 KNOTS LATE. SEAS 1 TO 3 FEET. ISOLATED SHOWERS.   
TONIGHT
 
NORTHWEST TO NORTH WINDS INCREASING TO NEAR 15 KNOTS.  
SEAS BUILDING TO 2 TO 4 FEET.   
MONDAY AND MONDAY NIGHT
 
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS.  
SEAS 4 TO 6 FEET.    
TUESDAY
 
EAST WINDS NEAR 15 KNOTS. SEAS 3 TO 5 FEET. ISOLATED  
SHOWERS.    
TUESDAY NIGHT AND WEDNESDAY
 
EAST TO SOUTHEAST WINDS NEAR 15 KNOTS  
AND GUSTY. SEAS 3 TO 5 FEET. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.    
WEDNESDAY NIGHT
 
SOUTHEAST WINDS 15 TO 20 KNOTS AND GUSTY. SEAS  
4 TO 6 FEET. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.   
THURSDAY...SOUTHEAST WINDS NEAR 15 KNOTS
 
BECOMING 10 TO 15 KNOTS.  
SEAS 2 TO 4 FEET...SUBSIDING TO 1 TO 3 FEET. SCATTERED SHOWERS  
AND ISOLATED THUNDERSTORMS.    
THURSDAY NIGHT
 
SOUTHEAST TO SOUTH WINDS NEAR 10 KNOTS. SEAS 1  
TO 2 FEET. ISOLATED SHOWERS.  
 

 
 
GMZ033-034-192130-  
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-  
1031 AM EST SUN FEB 19 2017  
   
THIS AFTERNOON
 
VARIABLE WINDS NEAR 5 KNOTS BECOMING NORTHWEST  
TO NORTH NEAR 10 KNOTS. SEAS 1 TO 2 FEET.    
TONIGHT...NORTHWEST TO NORTH WINDS NEAR 10 KNOTS
 
BECOMING  
NORTH TO NORTHEAST AND INCREASING TO NEAR 15 KNOTS. SEAS 1 TO 3  
FEET.    
MONDAY AND MONDAY NIGHT
 
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS.  
SEAS 1 TO 3 FEET.   
TUESDAY
 
EAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 3 FEET. ISOLATED  
SHOWERS.    
TUESDAY NIGHT AND WEDNESDAY
 
EAST TO SOUTHEAST WINDS NEAR 15  
KNOTS. SEAS 2 TO 4 FEET. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.    
WEDNESDAY NIGHT
 
SOUTHEAST WINDS NEAR 15 KNOTS. SEAS 3 TO 5.  
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.   
THURSDAY...SOUTHEAST WINDS 10 TO 15 KNOTS
 
BECOMING 5 TO 10  
KNOTS LATE. SEAS 2 TO 3 FEET. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.    
THURSDAY NIGHT
 
SOUTHEAST TO SOUTH WINDS NEAR 10 KNOTS. SEAS 1  
TO 3 FEET. ISOLATED SHOWERS.  
 

 
 
KN/DAF  
 
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