043  
FZUS52 KKEY 200750  
CWFKEY  
 
COASTAL WATERS FORECAST FOR THE FLORIDA KEYS  
NATIONAL WEATHER SERVICE KEY WEST FL  
350 AM EDT SUN MAY 20 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.  
 
GMZ005-201430-  
SYNOPSIS FOR KEYS COASTAL WATERS FROM OCEAN REEF TO DRY TORTUGAS  
350 AM EDT SUN MAY 20 2018  
   
SYNOPSIS
 
A WEAK TROUGH WILL MOVE SLOWLY NORTHWESTWARD INTO THE  
EASTERN GULF OF MEXICO TODAY THROUGH MONDAY. A RIDGE OF HIGH  
SURFACE PRESSURE WILL BUILD ACROSS THE SOUTHEASTERN UNITED STATES  
MONDAY NIGHT THROUGH WEDNESDAY.  
 
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM CURRENT, AS OF  
MAY 19TH, 2018.  
 
29 NM SOUTH OF DRY TORTUGAS LIGHT, ON LOGGERHEAD KEY.  
9 NM SOUTH OF COSGROVE SHOAL LIGHT, OFF THE MARQUESAS KEYS.  
8 NM SOUTH OF SAND KEY LIGHT, OFF KEY WEST.  
12 NM SOUTH OF LOOE KEY, OFF BIG PINE KEY.  
14 NM SOUTH OF SOMBRERO KEY LIGHT, OFF MARATHON.  
15 NM SOUTHEAST OF ALLIGATOR REEF LIGHT, OFF ISLAMORADA.  
11 NM SOUTHEAST OF MOLASSES REEF LIGHT, OFF KEY LARGO.  
7 NM EAST OF CARYSFORT REEF LIGHT, OFF OCEAN REEF.  
 
GULF STREAM INFORMATION COURTESY OF THE NAVAL OCEANOGRAPHIC  
OFFICE.  
 

 
 
GMZ031-201430-  
FLORIDA BAY INCLUDING BARNES SOUND, BLACKWATER SOUND, AND  
BUTTONWOOD SOUND-  
350 AM EDT SUN MAY 20 2018  
   
..SMALL CRAFT SHOULD EXERCISE CAUTION
 
 
   
TODAY
 
SOUTHEAST WINDS 15 TO 20 KNOTS. BAY WATERS CHOPPY.  
WIDESPREAD SHOWERS AND ISOLATED THUNDERSTORMS.    
TONIGHT
 
SOUTHEAST WINDS NEAR 15 KNOTS. BAY WATERS A MODERATE  
CHOP. NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS.    
MONDAY AND MONDAY NIGHT
 
SOUTHEAST WINDS 15 TO 20 KNOTS. BAY  
WATERS CHOPPY. NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS.    
TUESDAY
 
SOUTHEAST WINDS NEAR 15 KNOTS. BAY WATERS A MODERATE  
CHOP. NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS.    
TUESDAY NIGHT
 
SOUTHEAST WINDS 10 TO 15 KNOTS. BAY WATERS A  
LIGHT TO MODERATE CHOP. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.    
WEDNESDAY AND WEDNESDAY NIGHT
 
EAST TO SOUTHEAST WINDS NEAR 10  
KNOTS. BAY WATERS A LIGHT CHOP. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.   
THURSDAY
 
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS. BAY WATERS A  
LIGHT TO MODERATE CHOP. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.    
THURSDAY NIGHT
 
EAST TO SOUTHEAST WINDS NEAR 15 KNOTS. BAY  
WATERS A MODERATE CHOP. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.  
 

 
 
GMZ032-035-201430-  
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-  
350 AM EDT SUN MAY 20 2018  
   
..SMALL CRAFT SHOULD EXERCISE CAUTION
 
 
   
TODAY
 
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 2 TO 3 FEET.  
NEARSHORE WATERS CHOPPY. WIDESPREAD SHOWERS AND ISOLATED  
THUNDERSTORMS.    
TONIGHT THROUGH TUESDAY
 
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 2  
TO 3 FEET. NEARSHORE WATERS CHOPPY. NUMEROUS SHOWERS AND ISOLATED  
THUNDERSTORMS.    
TUESDAY NIGHT
 
SOUTHEAST WINDS NEAR 15 KNOTS. SEAS AROUND 2  
FEET. NEARSHORE WATERS A MODERATE CHOP. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS.    
WEDNESDAY AND WEDNESDAY NIGHT
 
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.   
THURSDAY
 
EAST TO SOUTHEAST WINDS NEAR 15 KNOTS. SEAS AROUND 2  
FEET. NEARSHORE WATERS A MODERATE CHOP. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS.    
THURSDAY NIGHT
 
EAST TO SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 2  
TO 3 FEET. NEARSHORE WATERS CHOPPY. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.  
 

 
 
GMZ042>044-201430-  
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-  
350 AM EDT SUN MAY 20 2018  
   
..SMALL CRAFT SHOULD EXERCISE CAUTION
 
 
   
TODAY
 
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 2 TO4 FEET.  
NEARSHORE WATERS CHOPPY. WIDESPREAD SHOWERS AND ISOLATED  
THUNDERSTORMS.    
TONIGHT THROUGH TUESDAY
 
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 2  
TO 4 FEET. NEARSHORE WATERS CHOPPY. NUMEROUS SHOWERS AND ISOLATED  
THUNDERSTORMS.    
TUESDAY NIGHT
 
SOUTHEAST WINDS NEAR 15 KNOTS. SEAS 2 TO 3 FEET.  
NEARSHORE WATERS A MODERATE CHOP. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.    
WEDNESDAY AND WEDNESDAY NIGHT
 
EAST TO SOUTHEAST WINDS 10 TO 15  
KNOTS. SEAS AROUND 2 FEET. NEARSHORE WATERS A LIGHT TO MODERATE  
CHOP. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
THURSDAY
 
EAST TO SOUTHEAST WINDS NEAR 15 KNOTS. SEAS 2 TO 3  
FEET. NEARSHORE WATERS A MODERATE CHOP. SCATTERED SHOWERS AND  
ISOLATED THUNDERSTORMS.    
THURSDAY NIGHT
 
EAST TO SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 2  
TO 4 FEET. NEARSHORE WATERS CHOPPY. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.  
 

 
 
GMZ052>055-072>075-201430-  
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-  
350 AM EDT SUN MAY 20 2018  
   
..SMALL CRAFT ADVISORY IN EFFECT
 
 
   
TODAY
 
SOUTHEAST WINDS NEAR 20 KNOTS. SEAS 5 TO 7 FEET.  
WIDESPREAD SHOWERS AND ISOLATED THUNDERSTORMS.    
TONIGHT THROUGH TUESDAY
 
SOUTHEAST WINDS NEAR 20 KNOTS. SEAS 5  
TO 7 FEET. NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS.    
TUESDAY NIGHT
 
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 4 TO 6 FEET.  
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
WEDNESDAY
 
EAST TO SOUTHEAST WINDS NEAR 15 KNOTS. SEAS 3 TO 5  
FEET. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
WEDNESDAY NIGHT
 
EAST TO SOUTHEAST WINDS 10 TO 15 KNOTS. SEAS 2  
TO 4 FEET. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
THURSDAY
 
EAST TO SOUTHEAST WINDS NEAR 15 KNOTS. SEAS 3 TO 5  
FEET. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
THURSDAY NIGHT
 
EAST TO SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 4  
TO 6 FEET. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.  
 

 
 
GMZ033-034-201430-  
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-  
350 AM EDT SUN MAY 20 2018  
   
..SMALL CRAFT SHOULD EXERCISE CAUTION
 
 
   
TODAY
 
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 3 TO 5 FEET.  
WIDESPREAD SHOWERS AND ISOLATED THUNDERSTORMS.    
TONIGHT THROUGH TUESDAY
 
SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 3  
TO 5 FEET. NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS.    
TUESDAY NIGHT
 
SOUTHEAST WINDS NEAR 15 KNOTS. SEAS 2 TO 4 FEET.  
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
WEDNESDAY AND WEDNESDAY NIGHT
 
EAST TO SOUTHEAST WINDS 10 TO 15  
KNOTS. SEAS 2 TO 3 FEET. SCATTERED SHOWERS AND ISOLATED  
THUNDERSTORMS.    
THURSDAY
 
EAST TO SOUTHEAST WINDS NEAR 15 KNOTS. SEAS 2 TO 4  
FEET. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.    
THURSDAY NIGHT
 
EAST TO SOUTHEAST WINDS 15 TO 20 KNOTS. SEAS 3  
TO 5 FEET. SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS.  
 

 
 
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