693
WHUS52 KJAX 121909
SMWJAX
AMZ450-452-454-470-472-474-122015-
/O.NEW.KJAX.MA.W.0190.260812T1909Z-260812T2015Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
309 PM EDT WED AUG 12 2026
THE NATIONAL WEATHER SERVICE IN JACKSONVILLE HAS ISSUED A
* SPECIAL MARINE WARNING FOR...
COASTAL WATERS FROM ALTAMAHA SOUND TO FERNANDINA BEACH FL OUT 20
NM...
COASTAL WATERS FROM FERNANDINA BEACH TO ST. AUGUSTINE FL OUT 20
NM...
COASTAL WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL OUT 20 NM...
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...
WATERS FROM ST. AUGUSTINE TO FLAGLER BEACH FL FROM 20 TO 60 NM...
* UNTIL 415 PM EDT.
* AT 309 PM EDT, SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
WATERSPOUTS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR ALTAMAHA
SOUND TO VILANO BEACH, MOVING SOUTHEAST AT 20 KNOTS.
HAZARD...WATERSPOUTS AND WIND GUSTS TO 40 KNOTS.
SOURCE...RADAR.
IMPACT...WATERSPOUTS CAN EASILY OVERTURN BOATS AND CREATE LOCALLY
HAZARDOUS SEAS. SMALL CRAFT COULD BE DAMAGED IN BRIEFLY
HIGHER WINDS AND SUDDENLY HIGHER WAVES.
* LOCATIONS IMPACTED INCLUDE...
DOROTHY LOUISE BARGE, CASABLANCA REEF, BUOY HLHA, HIGH POINT,
NASSAU SOUND APPROACH BUOY 6A, BUOY F, VILANO BEACH, ST SIMONS
ISLAND VILLAGE, PALM VALLEY, NINE MILE REEF, SAINT AUGUSTINE, ST.
SIMONS ISLAND, CRESCENT BEACH, TALBOT ISLAND, SAINT ANDREWS SOUND,
SAINT JOHNS LIGHTED BUOY, DUNGENESS, ST SIMONS SOUND BUOY 9, NAVY
DRYDOCK, AND ATLANTIC BEACH.
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.
THUNDERSTORMS CAN PRODUCE SUDDEN WATERSPOUTS. WATERSPOUTS CAN EASILY
OVERTURN BOATS AND CREATE LOCALLY HAZARDOUS SEAS. SEEK SAFE HARBOR
IMMEDIATELY. 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 3128 8138 3130 8134 3130 8131 3118 8063
3019 8044 2956 8051 2971 8128 2981 8135
3010 8141 3022 8147 3038 8151 3051 8150
3055 8156 3066 8153 3067 8157 3127 8157
3121 8149 3130 8147
TIME...MOT...LOC 1909Z 320DEG 19KT 3123 8128 2993 8129
WATERSPOUT...POSSIBLE
HAIL...0.00IN
WIND...40KTS
HESS
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