782
WHUS52 KJAX 121815
SMWJAX
AMZ450-452-470-472-121915-
/O.NEW.KJAX.MA.W.0188.260812T1815Z-260812T1915Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SPECIAL MARINE WARNING
NATIONAL WEATHER SERVICE JACKSONVILLE FL
215 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...
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 315 PM EDT.
* AT 214 PM EDT, SEVERE THUNDERSTORMS CAPABLE OF PRODUCING
WATERSPOUTS WERE LOCATED ALONG A LINE EXTENDING FROM NEAR AMELIA
CITY TO NEAR GUANA RIVER STATE PARK, MOVING EAST AT 10 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, ATLANTIC BEACH, MAYPORT,
NASSAU SOUND APPROACH BUOY 6A, ANNA REEF, VILANO BEACH, AMELIA
CITY, SOUTH PONTE VEDRA BEACH, PALM VALLEY, JACKSONVILLE BEACH,
TALBOT ISLAND, BUOY KBY, SAINT JOHNS LIGHTED BUOY, DUNGENESS, SAINT
MARYS ENTRANCE BUOY 16, WHITTAKERS SNAPPER HOLE REEF, GUANA RIVER
STATE PARK, AND SAINT AUGUSTINE.
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 3082 8153 3075 8084 2990 8050 2991 8128
2988 8127 2987 8130 2990 8130 2989 8128
2991 8129 2991 8131 2987 8131 2988 8132
2987 8136 3010 8141 3022 8147 3034 8148
3038 8151 3045 8149
TIME...MOT...LOC 1814Z 255DEG 12KT 3066 8143 3010 8137
WATERSPOUT...POSSIBLE
HAIL...0.00IN
WIND...40KTS
HESS
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