284  
FZUS52 KKEY 170934  
CWFKEY  
 
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS  
NATIONAL WEATHER SERVICE KEY WEST FL  
434 AM EST WED JAN 17 2018  
 
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.  
 
GMZ005-171545-  
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS  
434 AM EST WED JAN 17 2018  
   
SYNOPSIS
 
HIGH PRESSURE WILL BUILD SOUTHEASTWARD FROM THE GREAT  
PLAINS WEDNESDAY, REACHING NORTH FLORIDA BY FRIDAY. HIGH PRESSURE  
WILL INTENSIFY ACROSS THE WESTERN NORTH ATLANTIC SATURDAY AND  
SATURDAY NIGHT.  
 
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF  
JANUARY 15, 2018...  
 
45 NM SOUTH OF DRY TORTUGAS LIGHT, ON LOGGERHEAD KEY.  
35 NM SOUTH OF COSGROVE SHOAL LIGHT, OFF THE MARQUESAS KEYS.  
30 NM SOUTH OF SAND KEY LIGHT, OFF KEY WEST.  
28 NM SOUTH OF LOOE KEY, OFF BIG PINE KEY.  
35 NM SOUTH OF SOMBRERO KEY LIGHT, OFF MARATHON.  
21 NM SOUTHEAST OF ALLIGATOR REEF LIGHT, OFF ISLAMORADA.  
17 NM SOUTHEAST OF MOLASSES REEF LIGHT, OFF KEY LARGO.  
14 NM EAST OF CARYSFORT REEF LIGHT, OFF OCEAN REEF.  
 
GULF STREAM INFORMATION COURTESY OF THE NAVAL OCEANOGRAPHIC OFFICE.  
 

 
 
GMZ031-171545-  
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND  
BUTTONWOOD SOUND-  
434 AM EST WED JAN 17 2018  
   
..SMALL CRAFT ADVISORY WILL BE REQUIRED EARLY THIS EVENING
 
 
   
TODAY
 
MAINLY NORTH WINDS NEAR 15 KNOTS. BAY WATERS A MODERATE  
CHOP.    
TONIGHT
 
NORTH WINDS NEAR 20 KNOTS, INCREASING TO 20 TO 25  
KNOTS. BAY WATERS BECOMING VERY ROUGH.   
THURSDAY
 
NORTH TO NORTHEAST WINDS NEAR 20 KNOTS, DECREASING  
WINDS 15 TO 20 KNOTS. BAY WATERS ROUGH, BECOMING CHOPPY.    
THURSDAY NIGHT
 
NORTHEAST WINDS NEAR 15 KNOTS. BAY WATERS A  
MODERATE CHOP.    
FRIDAY
 
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS. BAY WATERS A  
LIGHT TO MODERATE CHOP.    
FRIDAY NIGHT
 
NORTHEAST TO EAST WINDS NEAR 15 KNOTS. BAY WATERS  
A MODERATE CHOP.    
SATURDAY
 
EAST WINDS 10 TO 15 KNOTS. BAY WATERS A LIGHT TO  
MODERATE CHOP. ISOLATED SHOWERS.    
SATURDAY NIGHT
 
EAST WINDS NEAR 15 KNOTS. BAY WATERS A MODERATE  
CHOP. ISOLATED SHOWERS.    
SUNDAY
 
EAST WINDS 15 TO 20 KNOTS. BAY WATERS CHOPPY. ISOLATED  
SHOWERS.    
SUNDAY NIGHT
 
EAST WINDS NEAR 15 KNOTS. BAY WATERS A MODERATE  
CHOP. ISOLATED SHOWERS.  
 

 
 
GMZ032-035-171545-  
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-  
434 AM EST WED JAN 17 2018  
   
..SMALL CRAFT ADVISORY WILL BE REQUIRED EARLY THIS EVENING
 
 
   
TODAY
 
MAINLY NORTH WINDS NEAR 15 KNOTS. SEAS 2 TO 3 FEET.  
NEARSHORE WATERS A MODERATE CHOP.    
TONIGHT
 
NORTH WINDS NEAR 20 KNOTS EARLY, INCREASING TO 20 TO  
25 KNOTS. SEAS 3 TO 5 FEET, AS HIGH AS 7 FEET WEST OF THE  
MARQUESAS KEYS. NEARSHORE WATERS BECOMING VERY ROUGH.   
THURSDAY
 
NORTH TO NORTHEAST WINDS NEAR 20 KNOTS, DECREASING TO  
15 TO 20 KNOTS. SEAS 3 TO 5 FEET, SUBSIDING TO 2 TO 3 FEET.  
NEARSHORE WATERS ROUGH, BECOMING CHOPPY.    
THURSDAY NIGHT
 
NORTHEAST WINDS NEAR 15 KNOTS. SEAS AROUND 2 FEET.  
NEARSHORE WATERS A MODERATE CHOP.    
FRIDAY
 
NORTHEAST TO EAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 2 FEET.  
NEARSHORE WATERS A LIGHT TO MODERATE CHOP.    
FRIDAY NIGHT
 
NORTHEAST TO EAST WINDS NEAR 15 KNOTS. SEAS 1 TO 3  
FEET. NEARSHORE WATERS A MODERATE CHOP.    
SATURDAY
 
EAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 2 FEET. NEARSHORE  
WATERS A LIGHT TO MODERATE CHOP. ISOLATED SHOWERS.    
SATURDAY NIGHT AND SUNDAY
 
EAST WINDS NEAR 15 KNOTS. SEAS AROUND  
2 FEET. NEARSHORE WATERS A MODERATE CHOP. ISOLATED SHOWERS.    
SUNDAY NIGHT
 
EAST WINDS 10 TO 15 KNOTS. SEAS 1 TO 2 FEET. NEARSHORE  
WATERS A LIGHT TO MODERATE CHOP. ISOLATED SHOWERS.  
 

 
 
GMZ042>044-171545-  
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-  
434 AM EST WED JAN 17 2018  
   
..SMALL CRAFT SHOULD EXERCISE CAUTION
 
   
..SMALL CRAFT ADVISORY WILL BE REQUIRED EARLY THIS EVENING
 
 
   
TODAY
 
MAINLY NORTH WINDS 15 TO 20 KNOTS. SEAS 2 TO 3 FEET.  
NEARSHORE WATERS CHOPPY.    
TONIGHT
 
NORTH WINDS NEAR 20 KNOTS EARLY, INCREASING TO 20 TO  
25 KNOTS. SEAS 3 TO 4 FEET, BUILDING TO 3 TO 5 FEET. NEARSHORE  
WATERS VERY ROUGH.   
THURSDAY
 
NORTH TO NORTHEAST WINDS 20 TO 25 KNOTS EARLY,  
DECREASING TO 15 TO 20 KNOTS. SEAS 3 TO 5 FEET, SUBSIDING TO 2 TO  
3 FEET. NEARSHORE WATERS VERY ROUGH, BECOMING CHOPPY.    
THURSDAY NIGHT
 
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 3 FEET.  
NEARSHORE WATERS CHOPPY.    
FRIDAY
 
NORTHEAST TO EAST WINDS NEAR 15 KNOTS. SEAS 2 TO  
3 FEET. NEARSHORE WATERS A MODERATE CHOP.    
FRIDAY NIGHT
 
NORTHEAST TO EAST WINDS NEAR 15 KNOTS. SEAS 2 TO  
3 FEET. NEARSHORE WATERS A MODERATE CHOP.    
SATURDAY
 
EAST WINDS NEAR 15 KNOTS. SEAS 2 TO 3 FEET. NEARSHORE  
WATERS A MODERATE CHOP. ISOLATED SHOWERS.   
SATURDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET.  
NEARSHORE WATERS CHOPPY. ISOLATED SHOWERS.    
SUNDAY
 
EAST WINDS NEAR 20 KNOTS. SEAS 3 TO 4 FEET. NEARSHORE  
WATERS ROUGH. ISOLATED SHOWERS.    
SUNDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET.  
NEARSHORE WATERS CHOPPY. ISOLATED SHOWERS.  
 

 
 
GMZ052>055-072>075-171545-  
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-  
434 AM EST WED JAN 17 2018  
   
..SMALL CRAFT SHOULD EXERCISE CAUTION
 
   
..SMALL CRAFT ADVISORY WILL BE REQUIRED EARLY THIS EVENING
 
 
   
TODAY
 
MAINLY NORTH WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET.  
ISOLATED LIGHT SHOWERS EARLY.    
TONIGHT
 
NORTH WINDS NEAR 20 KNOTS EARLY, INCREASING TO NEAR 25  
KNOTS. SEAS 5 TO 7 FEET, BUILDING TO 6 TO 9 FEET.    
THURSDAY
 
NORTH TO NORTHEAST WINDS 20 TO 25 KNOTS EARLY,  
DECREASING TO 15 TO 20 KNOTS IN THE AFTERNOON. SEAS 6 TO 9 FEET,  
SUBSIDING TO 5 TO 8 FEET.    
THURSDAY NIGHT
 
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 7  
FEET.    
FRIDAY
 
NORTHEAST TO EAST WINDS NEAR 15 KNOTS. SEAS 3 TO 5  
FEET.   
FRIDAY NIGHT
 
NORTHEAST TO EAST WINDS NEAR 15 KNOTS. SEAS 3 TO  
5 FEET.   
SATURDAY
 
EAST WINDS NEAR 15 KNOTS. SEAS 4 TO 5 FEET. ISOLATED  
SHOWERS.    
SATURDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET.  
ISOLATED SHOWERS.    
SUNDAY
 
EAST WINDS NEAR 20 KNOTS. SEAS 4 TO 7 FEET. ISOLATED  
SHOWERS.   
SUNDAY NIGHT
 
EAST TO SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 4 TO  
6 FEET. ISOLATED SHOWERS.  
 

 
 
GMZ033-034-171545-  
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-  
434 AM EST WED JAN 17 2018  
   
..SMALL CRAFT SHOULD EXERCISE CAUTION FOR INCREASING WINDS
 
   
..SMALL CRAFT ADVISORY WILL BE REQUIRED EARLY THIS EVENING
 
 
   
TODAY
 
NORTHEAST WINDS NEAR 15 KNOTS, BECOMING NORTH AND INCREASING  
TO 15 TO 20 KNOTS. SEAS 3 TO 5 FEET.   
TONIGHT
 
NORTH WINDS 20 TO 25 KNOTS EARLY, INCREASING TO NEAR  
25 KNOTS. SEAS 4 TO 7 FEET, BUILDING TO 6 TO 9 FEET.    
THURSDAY
 
NORTH TO NORTHEAST WINDS 20 TO 25 KNOTS EARLY, DECREASING  
TO 15 TO 20 KNOTS. SEAS 5 TO 8 FEET, SUBSIDING TO 4 TO 6 FEET.    
THURSDAY NIGHT
 
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 5  
FEET.    
FRIDAY
 
NORTHEAST TO EAST WINDS NEAR 15 KNOTS. SEAS 2 TO 4  
FEET.    
FRIDAY NIGHT
 
NORTHEAST TO EAST WINDS NEAR 15 KNOTS. SEAS 2 TO 4  
FEET.    
SATURDAY
 
EAST WINDS NEAR 15 KNOTS. SEAS 2 TO 4 FEET. ISOLATED  
SHOWERS.    
SATURDAY NIGHT AND SUNDAY
 
EAST WINDS 15 TO 20 KNOTS. SEAS 3 TO  
5 FEET. ISOLATED SHOWERS.    
SUNDAY NIGHT
 
EAST WINDS NEAR 15 KNOTS. SEAS 2 TO 4 FEET.  
ISOLATED SHOWERS.  
 

 
 
APA  
 
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