547  
WHUS72 KCHS 050936  
MWWCHS  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE CHARLESTON SC  
436 AM EST THU MAR 5 2026  
 
AMZ330-051400-  
/O.EXA.KCHS.MF.Y.0010.000000T0000Z-260305T1400Z/  
CHARLESTON HARBOR-  
436 AM EST THU MAR 5 2026  
   
..DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EST THIS MORNING
 
 
* WHAT...DENSE FOG WILL REDUCE VISIBILITY TO 1/4 NM OR LESS.  
 
* WHERE...CHARLESTON HARBOR.  
 
* WHEN...UNTIL 9 AM EST THIS MORNING.  
 
* IMPACTS...LOW VISIBILITY WILL MAKE NAVIGATION DIFFICULT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
IF YOU MUST NAVIGATE, PROCEED WITH CAUTION. USE PROPER FOG  
SIGNALS. MAKE SURE ALL RUNNING LIGHTS ARE ON. REMEMBER TO USE  
YOUR RADAR AND COMPASS.  
 

 
 

 
 
AMZ350-051400-  
/O.CON.KCHS.MF.Y.0010.000000T0000Z-260305T1400Z/  
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-  
436 AM EST THU MAR 5 2026  
 
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM EST THIS  
MORNING...  
 
* WHAT...DENSE FOG WILL REDUCE VISIBILITY TO 1/4 NM OR LESS.  
 
* WHERE...SOUTH SANTEE RIVER TO EDISTO BEACH OUT 20 NM.  
 
* WHEN...UNTIL 9 AM EST THIS MORNING.  
 
* IMPACTS...LOW VISIBILITY WILL MAKE NAVIGATION DIFFICULT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
IF YOU MUST NAVIGATE, PROCEED WITH CAUTION. USE PROPER FOG  
SIGNALS. MAKE SURE ALL RUNNING LIGHTS ARE ON. REMEMBER TO USE  
YOUR RADAR AND COMPASS.  
 

 
 

 
 
AMZ352-051400-  
/O.CON.KCHS.MF.Y.0010.000000T0000Z-260305T1400Z/  
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-  
436 AM EST THU MAR 5 2026  
 
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM EST THIS  
MORNING...  
 
* WHAT...DENSE FOG WILL REDUCE VISIBILITY TO 1/4 NM OR LESS.  
 
* WHERE...EDISTO BEACH TO SAVANNAH OUT 20 NM.  
 
* WHEN...UNTIL 9 AM EST THIS MORNING.  
 
* IMPACTS...LOW VISIBILITY WILL MAKE NAVIGATION DIFFICULT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
IF YOU MUST NAVIGATE, PROCEED WITH CAUTION. USE PROPER FOG  
SIGNALS. MAKE SURE ALL RUNNING LIGHTS ARE ON. REMEMBER TO USE  
YOUR RADAR AND COMPASS.  
 

 
 

 
 
AMZ354-051400-  
/O.CON.KCHS.MF.Y.0010.000000T0000Z-260305T1400Z/  
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING  
GRAYS REEF NATIONAL MARINE SANCTUARY-  
436 AM EST THU MAR 5 2026  
 
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM EST THIS  
MORNING...  
 
* WHAT...DENSE FOG WILL REDUCE VISIBILITY TO 1/4 NM OR LESS.  
 
* WHERE...SAVANNAH TO ALTAMAHA SOUND OUT 20 NM.  
 
* WHEN...UNTIL 9 AM EST THIS MORNING.  
 
* IMPACTS...LOW VISIBILITY WILL MAKE NAVIGATION DIFFICULT.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
IF YOU MUST NAVIGATE, PROCEED WITH CAUTION. USE PROPER FOG  
SIGNALS. MAKE SURE ALL RUNNING LIGHTS ARE ON. REMEMBER TO USE  
YOUR RADAR AND COMPASS.  
 

 
 

 
 
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