417  
FZUS52 KKEY 191520  
CWFKEY  
 
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS  
NATIONAL WEATHER SERVICE KEY WEST FL  
1020 AM EST SUN JAN 19 2020  
 
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  
1020 AM EST SUN JAN 19 2020  
   
SYNOPSIS
 
A RIDGE AXIS ACROSS CENTRAL AND SOUTH FLORIDA WILL  
GRADUALLY WEAKEN THIS AFTERNOON AND TONIGHT. A COLD FRONTAL  
PASSAGE IS EXPECTED ON MONDAY, USHERING IN STRONG NORTHERLY  
BREEZES WHICH WILL LAST THROUGH TUESDAY AND WEDNESDAY. WINDS WILL  
TURN EASTERLY ON THURSDAY AS HIGH PRESSURE MOVES FROM THE OHIO  
VALLEY TO NEAR CHESAPEAKE BAY.  
 
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF  
JANUARY 16...  
 
7 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY.  
1 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS.  
1 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST.  
LESS THAN 1 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY.  
1 NM SOUTH OF SOMBRERO KEY LIGHT...OFF MARATHON.  
2 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA.  
2 NM SOUTHEAST OF MOLASSES REEF LIGHT...OFF KEY LARGO.  
2 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-  
1020 AM EST SUN JAN 19 2020  
   
THIS AFTERNOON
 
SOUTHEAST TO SOUTH WINDS AROUND 5 KNOTS. BAY  
WATERS SMOOTH.    
TONIGHT
 
VARIABLE WINDS NEAR 5 KNOTS. BAY WATERS SMOOTH.  
ISOLATED SHOWERS.    
MONDAY
 
NORTHWEST TO NORTH WINDS 5 TO 10 KNOTS, INCREASING TO  
10 TO 15 KNOTS. BAY WATERS SMOOTH TO A LIGHT CHOP, BECOMING A  
LIGHT TO MODERATE CHOP. SCATTERED SHOWERS.   
MONDAY NIGHT
 
NORTH WINDS 15 TO 20 KNOTS, INCREASING TO NEAR 20  
KNOTS. BAY WATERS CHOPPY, BECOMING ROUGH. ISOLATED SHOWERS.    
TUESDAY
 
NORTHWEST TO NORTH WINDS DECREASING TO 15 TO 20 KNOTS.  
BAY WATERS BECOMING CHOPPY.    
TUESDAY NIGHT
 
NORTHWEST TO NORTH WINDS NEAR 20 KNOTS. BAY  
WATERS ROUGH.    
WEDNESDAY
 
NORTH WINDS DECREASING TO 15 TO 20 KNOTS. BAY WATERS  
BECOMING CHOPPY.   
WEDNESDAY NIGHT
 
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS. BAY  
WATERS CHOPPY. ISOLATED SHOWERS.    
THURSDAY
 
EAST WINDS 15 TO 20 KNOTS. BAY WATERS CHOPPY.  
ISOLATED SHOWERS.    
THURSDAY NIGHT
 
EAST WINDS NEAR 20 KNOTS. BAY WATERS ROUGH.  
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-  
1020 AM EST SUN JAN 19 2020  
   
THIS AFTERNOON
 
EAST TO SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING  
SOUTHEAST TO SOUTH. SEAS AROUND 1 FOOT. NEARSHORE WATERS SMOOTH  
TO A LIGHT CHOP. ISOLATED SHOWERS.   
TONIGHT
 
EAST TO SOUTHEAST WINDS NEAR 5 KNOTS, BECOMING  
NORTHWEST TO NORTH AND INCREASING TO 10 TO 15 KNOTS EARLY IN THE  
MORNING. SEAS 1 FOOT OR LESS, BUILDING TO 1 TO 2 FEET. NEARSHORE  
WATERS SMOOTH, BECOMING A LIGHT TO MODERATE CHOP. SCATTERED  
SHOWERS.   
MONDAY
 
NORTHWEST TO NORTH WINDS 10 TO 15 KNOTS, INCREASING TO  
15 TO 20 KNOTS IN THE LATE MORNING AND AFTERNOON. SEAS 1 TO 2  
FEET, BUILDING TO 2 TO 5 FEET IN THE AFTERNOON. WEST OF THE  
MARQUESAS KEYS, SEAS 1 TO 2 FEET, BUILDING TO 5 TO 7 FEET IN THE  
AFTERNOON. NEARSHORE WATERS SMOOTH TO A LIGHT CHOP, BECOMING  
CHOPPY. SCATTERED SHOWERS.    
MONDAY NIGHT
 
NORTH WINDS NEAR 20 KNOTS. SEAS 3 TO 6 FEET,  
EXCEPT 7 TO 9 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE WATERS  
CHOPPY. ISOLATED SHOWERS.   
TUESDAY
 
NORTHWEST TO NORTH WINDS 20 TO 25 KNOTS. SEAS 2 TO  
5 FEET, EXCEPT 6 TO 8 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE  
WATERS VERY ROUGH.    
TUESDAY NIGHT
 
NORTH WINDS NEAR 25 KNOTS. SEAS 3 TO 6 FEET,  
EXCEPT 7 TO 9 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE WATERS  
VERY ROUGH.    
WEDNESDAY
 
NORTH TO NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 2 TO  
5 FEET, EXCEPT 4 TO 6 FEET WEST OF THE MARQUESAS KEYS. NEARSHORE  
WATERS CHOPPY.    
WEDNESDAY NIGHT
 
NORTH TO NORTHEAST WINDS 15 TO 20 KNOTS. SEAS  
2 TO 4 FEET. NEARSHORE WATERS CHOPPY. ISOLATED SHOWERS.    
THURSDAY
 
EAST WINDS 15 TO 20 KNOTS. SEAS 1 TO 3 FEET.  
NEARSHORE WATERS CHOPPY. ISOLATED SHOWERS.    
THURSDAY NIGHT
 
EAST WINDS NEAR 20 KNOTS. SEAS 2 TO 3 FEET.  
NEARSHORE WATERS ROUGH. SCATTERED 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-  
1020 AM EST SUN JAN 19 2020  
   
THIS AFTERNOON
 
SOUTHEAST WINDS 10 TO 15 KNOTS, BECOMING  
SOUTHEAST TO SOUTH AND DECREASING TO NEAR 10 KNOTS. SEAS 1 TO 3  
FEET, SUBSIDING TO 1 TO 2 FEET. NEARSHORE WATERS A LIGHT CHOP.  
ISOLATED SHOWERS.   
TONIGHT
 
EAST TO SOUTHEAST WINDS NEAR 5 KNOTS, BECOMING  
NORTHWEST TO NORTH AND INCREASING TO 10 TO 15 KNOTS EARLY IN THE  
MORNING. SEAS BUILDING TO 1 TO 3 FEET. NEARSHORE WATERS SMOOTH,  
BECOMING A LIGHT TO MODERATE CHOP. SCATTERED SHOWERS.   
MONDAY
 
NORTHWEST TO NORTH WINDS 10 TO 15 KNOTS, INCREASING TO  
15 TO 20 KNOTS. SEAS 1 TO 3 FEET. WEST OF COSGROVE SHOAL LIGHT,  
SEAS BUILDING TO 4 TO 7 FEET. NEARSHORE WATERS A LIGHT TO MODERATE  
CHOP, BECOMING CHOPPY. SCATTERED SHOWERS.    
MONDAY NIGHT
 
NORTH WINDS INCREASING TO NEAR 20 KNOTS. SEAS 2  
TO 4 FEET, EXCEPT 5 TO 8 FEET WEST OF COSGROVE SHOAL LIGHT.  
NEARSHORE WATERS BECOMING ROUGH. ISOLATED SHOWERS.    
TUESDAY
 
NORTHWEST TO NORTH WINDS NEAR 20 KNOTS, INCREASING TO  
20 TO 25 KNOTS. SEAS 2 TO 4 FEET, EXCEPT 5 TO 7 FEET WEST OF  
COSGROVE SHOAL LIGHT. NEARSHORE WATERS ROUGH, BECOMING VERY ROUGH.   
TUESDAY NIGHT
 
NORTH WINDS NEAR 25 KNOTS. SEAS 2 TO 4 FEET,  
EXCEPT 5 TO 7 FEET WEST OF COSGROVE SHOAL LIGHT. NEARSHORE WATERS  
EXTREMELY ROUGH.    
WEDNESDAY
 
NORTH TO NORTHEAST WINDS NEAR 20 KNOTS. SEAS 2 TO  
4 FEET, EXCEPT 5 TO 6 FEET WEST OF COSGROVE SHOAL LIGHT.  
NEARSHORE WATERS ROUGH.    
WEDNESDAY NIGHT
 
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS. SEAS 2  
TO 4 FEET. NEARSHORE WATERS CHOPPY. ISOLATED SHOWERS.    
THURSDAY
 
EAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 4 FEET.  
NEARSHORE WATERS CHOPPY. ISOLATED SHOWERS.    
THURSDAY NIGHT
 
EAST WINDS NEAR 20 KNOTS. SEAS 3 TO 5 FEET.  
NEARSHORE WATERS ROUGH. SCATTERED 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-  
1020 AM EST SUN JAN 19 2020  
   
THIS AFTERNOON
 
SOUTHEAST WINDS 10 TO 15 KNOTS, DECREASING TO  
NEAR 10 KNOTS. SEAS 3 TO 4 FEET. ISOLATED SHOWERS.   
TONIGHT
 
EAST TO SOUTHEAST WINDS 5 TO 10 KNOTS, BECOMING  
NORTHWEST TO NORTH EARLY IN THE MORNING. SEAS 2 TO 3 FEET.  
SCATTERED SHOWERS.   
MONDAY
 
NORTH WINDS INCREASING TO 15 TO 20 KNOTS. SEAS 2 TO 3  
FEET, BUILDING TO 4 TO 7 FEET IN THE AFTERNOON. SCATTERED SHOWERS.   
MONDAY NIGHT
 
NORTH WINDS NEAR 20 KNOTS. SEAS 5 TO 9 FEET.  
SCATTERED SHOWERS.    
TUESDAY
 
NORTHWEST TO NORTH WINDS 20 TO 25 KNOTS. SEAS 5 TO  
9 FEET. ISOLATED SHOWERS.    
TUESDAY NIGHT
 
NORTH WINDS NEAR 25 KNOTS. SEAS 6 TO 10 FEET.    
WEDNESDAY
 
NORTH TO NORTHEAST WINDS NEAR 20 KNOTS. SEAS 5 TO  
9 FEET, SUBSIDING TO 5 TO 7 FEET.    
WEDNESDAY NIGHT
 
NORTHEAST TO EAST WINDS 15 TO 20 KNOTS. SEAS 5  
TO 8 FEET. ISOLATED SHOWERS.    
THURSDAY
 
EAST WINDS 15 TO 20 KNOTS. SEAS 5 TO 7 FEET. ISOLATED  
SHOWERS.    
THURSDAY NIGHT
 
EAST TO SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS  
5 TO 7 FEET. SCATTERED 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-  
1020 AM EST SUN JAN 19 2020  
   
THIS AFTERNOON
 
SOUTHEAST TO SOUTH WINDS NEAR 10 KNOTS. SEAS 1  
TO 3 FEET. ISOLATED SHOWERS.    
TONIGHT
 
SOUTHEAST TO SOUTH WINDS NEAR 5 KNOTS, BECOMING  
NORTHWEST TO NORTH AND INCREASING TO NEAR 15 KNOTS EARLY IN THE  
MORNING. SEAS 1 TO 2 FEET, BUILDING TO 2 TO 4 FEET. SCATTERED  
SHOWERS.   
MONDAY
 
NORTH WINDS 15 TO 20 KNOTS, INCREASING TO NEAR 20 KNOTS.  
SEAS 2 TO 5 FEET, BUILDING TO 5 TO 8 FEET. SCATTERED SHOWERS.    
MONDAY NIGHT
 
NORTH WINDS 20 TO 25 KNOTS. SEAS 6 TO 10 FEET.    
TUESDAY
 
NORTH WINDS 20 TO 25 KNOTS. SEAS 5 TO 9 FEET. ISOLATED  
SHOWERS.    
TUESDAY NIGHT
 
NORTH WINDS NEAR 25 KNOTS. SEAS 6 TO 10 FEET.    
WEDNESDAY
 
NORTH TO NORTHEAST NEAR 20 KNOTS, DECREASING TO 15  
TO 20 KNOTS. SEAS 5 TO 8 FEET, SUBSIDING TO 4 TO 6 FEET.   
WEDNESDAY NIGHT
 
NORTHEAST WINDS 15 TO 20 KNOTS. SEAS 3 TO  
5 FEET. ISOLATED SHOWERS.    
THURSDAY
 
EAST WINDS NEAR 15 KNOTS. SEAS 2 TO 4 FEET. ISOLATED  
SHOWERS.    
THURSDAY NIGHT
 
EAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 4 FEET.  
SCATTERED SHOWERS.  
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab FL Page Main Text Page