150 
WHUS52 KCHS 212111
SMWCHS
AMZ364-384-212315-
/O.NEW.KCHS.MA.W.0037.260621T2111Z-260621T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Charleston SC
511 PM EDT Sun Jun 21 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 715 PM EDT.

* At 511 PM EDT, a strong thunderstorm was located 9 NM north of
  Altamaha Sound, moving east at 15 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, Grays Reef Buoy, Steel Barge Modena, K T K Buoy,
  Honey Barge, Tug Rio Apon, Tug Elmira, Buoy J, Ferry Boat Janet,
  Buoy Tender Sagebrush, C A T Buoy, Buoy B H, D R H Buoy, John Bird
  and Tug Rio Caroni.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes.

&&

LAT...LON 3128 8139 3135 8138 3135 8132 3144 8134
      3146 8130 3144 8126 3150 8122 3152 8129
      3156 8129 3159 8118 3167 8116 3169 8121
      3174 8120 3177 8112 3173 8049 3118 8062
      3128 8124 3129 8134 3128 8134 3130 8136
TIME...MOT...LOC 2111Z 264DEG 16KT 3147 8131

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...34 KTS

$$

CPM


094 
WHUS52 KJAX 212123
SMWJAX
AMZ470-472-212230-
/O.NEW.KJAX.MA.W.0099.260621T2123Z-260621T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Jacksonville FL
523 PM EDT Sun Jun 21 2026

The National Weather Service in Jacksonville has issued a

* Special Marine Warning for...
  Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60
  NM...
  Waters from Fernandina Beach to St. Augustine FL from 20 to 60
  NM...

* Until 630 PM EDT.

* At 523 PM EDT, a strong thunderstorm was located 24 nm east of
  Atlantic Beach, or 35 nm northeast of Saint Augustine, moving east
  at 20 knots.

  HAZARD...Wind gusts 34 knots or greater.

  SOURCE...Radar.

  IMPACT...Small craft could be damaged in briefly higher winds and 
           suddenly higher waves.

* Locations impacted include...
  Tournament Reef, Casablanca Reef, Buoy Hlha, Anna Reef, and Navy
  Drydock.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor immediately as gusty winds and high waves are
expected. If your vessel is caught offshore, immediately secure for
heavy weather. Ensure all crew members are wearing USCG approved Type
I life jackets and nonessential crew are below decks. Deploy jack
lines and harnesses if available. Check life saving equipment,
including batteries on handheld radios, for readiness.

&&

LAT...LON 3111 8028 3094 8032 3071 8043 3063 8043
      3009 8030 2990 8022 2991 8093 3061 8110
      3098 8105 3108 8098 3123 8094
TIME...MOT...LOC 2123Z 259DEG 19KT 3038 8094 

HAIL...0.00IN
WIND...>34KTS

$$

DUBOIS


194 
WHUS52 KCHS 212155
SMWCHS
AMZ362-364-384-212330-
/O.NEW.KCHS.MA.W.0038.260621T2155Z-260621T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Charleston SC
555 PM EDT Sun Jun 21 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...
  Coastal waters from Edisto Beach SC to Savannah GA out 20 NM...

* Until 730 PM EDT.

* At 555 PM EDT, a strong thunderstorm was located 8 NM northwest of
  Saint Catherines Sound, moving east at 15 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...
  Savannah Buoy, Buoy K C, Motherlode Barge, Channel Buoy 5, Sailboat
  Jupiter, 110 Degree Olympic Buoy, Whitewater Reef, Sea Buoy 2w,
  Hilton Head Reef, Savannah River Entrance, Wassaw Sound Buoy,
  Gaskins Bank Wreck, Gaskin Banks, C C A Buoy and Buoy L.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes.

&&

LAT...LON 3176 8112 3181 8108 3184 8112 3187 8111
      3191 8106 3189 8100 3191 8098 3193 8101
      3195 8101 3199 8096 3199 8094 3198 8093
      3201 8090 3205 8093 3211 8089 3213 8046
      3194 8047 3188 8052 3186 8047 3171 8048
TIME...MOT...LOC 2155Z 256DEG 15KT 3182 8121

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...34 KTS

$$

CPM