877  
WHUS72 KKEY 191449  
MWWKEY  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE KEY WEST FL  
949 AM EST THU DEC 19 2024  
 
GMZ054-055-074-075-191600-  
/O.CAN.KKEY.MF.Y.0005.000000T0000Z-241219T1600Z/  
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 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-  
949 AM EST THU DEC 19 2024  
   
..DENSE FOG ADVISORY IS CANCELLED  
 
DENSE FOG IS NO LONGER A THREAT IN THE STRAITS OF FLORIDA.  
HOWEVER, PATCHY FOG MAY PERSIST THROUGH THE EARLY AFTERNOON.  
 
 
 
GMZ032-043-191900-  
/O.EXB.KKEY.MF.Y.0005.000000T0000Z-241219T1900Z/  
BAYSIDE AND GULF SIDE FROM CRAIG KEY TO WEST END OF SEVEN MILE  
BRIDGE-  
HAWK CHANNEL FROM CRAIG KEY TO WEST END OF SEVEN MILE BRIDGE OUT  
TO THE REEF-  
949 AM EST THU DEC 19 2024  
   
..DENSE FOG ADVISORY IN EFFECT UNTIL 2 PM EST THIS AFTERNOON  
 
* WHAT...DENSE FOG WILL REDUCE VISIBILITY TO LESS THAN 1 NM.  
 
* WHERE...HAWK CHANNEL FROM CRAIG KEY TO WEST END OF SEVEN MILE  
BRIDGE, AND BAYSIDE AND GULF SIDE FROM CRAIG KEY TO WEST END  
OF SEVEN MILE BRIDGE.  
 
* WHEN...UNTIL 2 PM EST THIS AFTERNOON.  
 
* IMPACTS...A DENSE FOG ADVISORY MEANS THAT VISIBILITIES WILL BE  
REDUCED TO ONE NAUTICAL MILE OR LESS. LOW VISIBILITY WILL MAKE  
NAVIGATION DIFFICULT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
INEXPERIENCED BOATERS SHOULD AVOID OPERATING IN THESE CONDITIONS.  
IF YOU MUST OPERATE, PROCEED WITH CAUTION. USE PROPER FOG  
SIGNALS. MAKE SURE ALL RUNNING LIGHTS ARE ON. REMEMBER TO USE  
YOUR RADAR, GPS AND COMPASS. ASSIGN A MATE TO TAKE WATCH AWAY  
FROM ENGINE NOISE TO ALLOW FOR RECEPTION OF FOG SIGNALS.  
 
 
 
 
 
GMZ033>035-044-191900-  
/O.EXT.KKEY.MF.Y.0005.000000T0000Z-241219T1900Z/  
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-  
GULF OF MEXICO FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON  
SHOAL OUT TO 5 FATHOMS-  
HAWK CHANNEL FROM WEST END OF SEVEN MILE BRIDGE TO HALFMOON SHOAL  
OUT TO THE REEF-  
949 AM EST THU DEC 19 2024  
 
...DENSE FOG ADVISORY NOW IN EFFECT UNTIL 2 PM EST THIS  
AFTERNOON...  
 
* WHAT...DENSE FOG WILL REDUCE VISIBILITY TO 1 NM OR LESS.  
 
* WHERE...GULF WATERS BEYOND 5 FATHOMS INCLUDING THE DRY  
TORTUGAS.  
 
* WHEN...UNTIL 2 PM EST THIS AFTERNOON.  
 
* IMPACTS...A DENSE FOG ADVISORY MEANS THAT VISIBILITIES WILL BE  
REDUCED TO ONE NAUTICAL MILE OR LESS. LOW VISIBILITY WILL MAKE  
NAVIGATION DIFFICULT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
INEXPERIENCED BOATERS SHOULD AVOID OPERATING IN THESE CONDITIONS.  
IF YOU MUST OPERATE, PROCEED WITH CAUTION. USE PROPER FOG  
SIGNALS. MAKE SURE ALL RUNNING LIGHTS ARE ON. REMEMBER TO USE  
YOUR RADAR, GPS AND COMPASS. ASSIGN A MATE TO TAKE WATCH AWAY  
FROM ENGINE NOISE TO ALLOW FOR RECEPTION OF FOG SIGNALS.  
 
 
 
 
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