168
WHUS72 KCHS 211226
MWWCHS
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE CHARLESTON SC
726 AM EST SUN DEC 21 2025
AMZ350-212030-
/O.NEW.KCHS.MF.Y.0014.251221T1226Z-251221T1500Z/
/O.CON.KCHS.SC.Y.0072.251222T0200Z-251223T0500Z/
WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT 20 NM-
726 AM EST SUN DEC 21 2025
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO MIDNIGHT EST MONDAY NIGHT...
* WHAT...FOR THE DENSE FOG ADVISORY, DENSE FOG WILL REDUCE
VISIBILITY TO ONE HALF NAUTICAL MILE OR LESS. CONDITIONS IMPROVE
HEADING OFF THE COAST. FOR THE SMALL CRAFT ADVISORY, NORTHEAST
WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND SEAS 3 TO 6 FT
EXPECTED.
* WHERE...SOUTH SANTEE RIVER TO EDISTO BEACH OUT 20 NM.
* WHEN...FOR THE DENSE FOG ADVISORY, UNTIL 10 AM EST THIS
MORNING. FOR THE SMALL CRAFT ADVISORY, FROM 9 PM THIS EVENING
TO MIDNIGHT EST MONDAY NIGHT.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT. LOW
VISIBILITY WILL MAKE NAVIGATION DIFFICULT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
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.
AMZ352-212030-
/O.NEW.KCHS.MF.Y.0014.251221T1226Z-251221T1500Z/
/O.CON.KCHS.SC.Y.0072.251222T0500Z-251223T0500Z/
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
726 AM EST SUN DEC 21 2025
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO MIDNIGHT EST MONDAY NIGHT...
* WHAT...FOR THE DENSE FOG ADVISORY, DENSE FOG WILL REDUCE
VISIBILITY TO ONE HALF NAUTICAL MILE OR LESS. CONDITIONS IMPROVE
HEADING OFF THE COAST. FOR THE SMALL CRAFT ADVISORY, NORTHEAST
WINDS 10 TO 20 KT WITH GUSTS UP TO 25 KT AND SEAS 3 TO 6 FT
EXPECTED.
* WHERE...EDISTO BEACH TO SAVANNAH OUT 20 NM.
* WHEN...FOR THE DENSE FOG ADVISORY, UNTIL 10 AM EST THIS
MORNING. FOR THE SMALL CRAFT ADVISORY, FROM MIDNIGHT TONIGHT
TO MIDNIGHT EST MONDAY NIGHT.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT. LOW
VISIBILITY WILL MAKE NAVIGATION DIFFICULT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
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.
AMZ354-212030-
/O.NEW.KCHS.MF.Y.0014.251221T1226Z-251221T1500Z/
/O.CON.KCHS.SC.Y.0072.251222T0500Z-251223T0500Z/
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM, INCLUDING
GRAYS REEF NATIONAL MARINE SANCTUARY-
726 AM EST SUN DEC 21 2025
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO MIDNIGHT EST MONDAY NIGHT...
* WHAT...FOR THE DENSE FOG ADVISORY, DENSE FOG REDUCE VISIBILITY
TO ONE HALF NAUTICAL MILE OR LESS. CONDITIONS IMPROVE
HEADING OFF THE COAST. FOR THE SMALL CRAFT
ADVISORY, NORTHEAST WINDS 10 TO 20 KT WITH GUSTS UP TO 25 KT AND
SEAS 3 TO 6 FT EXPECTED.
* WHERE...SAVANNAH TO ALTAMAHA SOUND OUT 20 NM.
* WHEN...FOR THE DENSE FOG ADVISORY, UNTIL 10 AM EST THIS
MORNING. FOR THE SMALL CRAFT ADVISORY, FROM MIDNIGHT TONIGHT
TO MIDNIGHT EST MONDAY NIGHT.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT. LOW
VISIBILITY WILL MAKE NAVIGATION DIFFICULT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
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.
AMZ330-211500-
/O.NEW.KCHS.MF.Y.0014.251221T1226Z-251221T1500Z/
CHARLESTON HARBOR-
726 AM EST SUN DEC 21 2025
..DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM EST THIS MORNING
* WHAT...DENSE FOG WILL REDUCE VISIBILITY TO ONE HALF NAUTICAL
MILE OR LESS.
* WHERE...CHARLESTON HARBOR.
* WHEN...UNTIL 10 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.
AMZ374-212030-
/O.CON.KCHS.SC.Y.0072.251222T0200Z-251223T2300Z/
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA FROM 20 TO 60 NM-
726 AM EST SUN DEC 21 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO 6 PM EST TUESDAY...
* WHAT...EAST WINDS 15 TO 25 KT WITH GUSTS UP TO 30 KT AND SEAS
5 TO 8 FT EXPECTED.
* WHERE...SAVANNAH TO ALTAMAHA SOUND FROM 20 TO 60 NM.
* WHEN...FROM 9 PM THIS EVENING TO 6 PM EST TUESDAY.
* IMPACTS...CONDITIONS WILL BE HAZARDOUS TO SMALL CRAFT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
INEXPERIENCED MARINERS, ESPECIALLY THOSE OPERATING SMALLER
VESSELS, SHOULD AVOID NAVIGATING IN HAZARDOUS CONDITIONS.
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