WHUS52 KJAX 041918

SMWJAX

AMZ452-041945-

/O.NEW.KJAX.MA.W.0165.260804T1918Z-260804T1945Z/



BULLETIN - IMMEDIATE BROADCAST REQUESTED

Special Marine Warning

National Weather Service Jacksonville FL

318 PM EDT Tue Aug 4 2026



The National Weather Service in Jacksonville has issued a



* Special Marine Warning for...

  Coastal waters from Fernandina Beach to St. Augustine FL out 20

  NM...



* Until 345 PM EDT.



* At 318 PM EDT, severe thunderstorms capable of producing

  waterspouts were located along a line extending from Talbot Island

  to 10 nm west of Saint Augustine, moving northeast at 15 knots.



  HAZARD...Waterspouts and wind gusts 34 knots or greater.



  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...

  Atlantic Beach, Palm Valley, Jacksonville Beach, Mayport, Talbot

  Island, Nassau Sound Approach Buoy 6a, Saint Johns Lighted Buoy,

  Vilano Beach, South Ponte Vedra Beach, 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 3044 8149 3053 8150 3060 8110 3051 8108

      2991 8108 2991 8128 2986 8127 2986 8131

      2990 8130 2989 8128 2991 8129 2991 8131

      2987 8131 2985 8136 3010 8141 3022 8147

      3034 8148 3038 8151

TIME...MOT...LOC 1918Z 244DEG 15KT 3048 8146 2991 8150 



WATERSPOUT...POSSIBLE

HAIL...0.00IN

WIND...>34KTS



$$



HESS