026  
WHUS52 KCHS 182342  
SMWCHS  
AMZ364-384-190115-  
/O.NEW.KCHS.MA.W.0030.260618T2342Z-260619T0115Z/  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
SPECIAL MARINE WARNING  
NATIONAL WEATHER SERVICE CHARLESTON SC  
742 PM EDT THU JUN 18 2026  
 
THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A  
 
* SPECIAL MARINE WARNING FOR...  
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 60 NM...  
 
* UNTIL 915 PM EDT.  
 
* AT 742 PM EDT, A STRONG THUNDERSTORM WAS LOCATED 5 NM SOUTHEAST OF  
SAPELO CHANNELBUOY 3, MOVING NORTHEAST AT 25 KNOTS.  
 
HAZARD...WIND GUSTS TO 34 KNOTS.  
 
SOURCE...RADAR INDICATED.  
 
IMPACT...SMALL CRAFT COULD BE DAMAGED IN BRIEFLY HIGHER WINDS AND  
SUDDENLY HIGHER WAVES.  
 
* LOCATIONS IMPACTED INCLUDE...  
SAPELO BUOY S, STEEL BARGE MODENA, K T K BUOY, TUG RIO APON, C A T  
BUOY, TUG ELMIRA, BUOY TENDER SAGEBRUSH, GRAYS REEF BUOY, FERRY  
BOAT JANET, BUOY J, HONEY BARGE, BUOY B H, BUOY B L, SAPELO  
CHANNELBUOY 3 AND ST CATHERINES BUOY 3.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MOVE TO SAFE HARBOR UNTIL HAZARDOUS WEATHER PASSES.  
 

 
 
LAT...LON 3134 8140 3135 8132 3142 8135 3145 8134  
3146 8129 3144 8126 3150 8122 3152 8129  
3155 8130 3159 8118 3167 8116 3168 8121  
3173 8121 3176 8112 3181 8108 3182 8108  
3176 8041 3123 8089 3130 8136 3129 8141  
TIME...MOT...LOC 2342Z 231DEG 25KT 3149 8103  
 
MAX HAIL SIZE...0.00 IN  
MAX WIND GUST...34 KTS  
 

 
 
CPM  
 
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