WHUS52 KJAX 041943 SMWJAX AMZ452-472-042045- /O.NEW.KJAX.MA.W.0166.260804T1943Z-260804T2045Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Jacksonville FL 343 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... Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM... * Until 445 PM EDT. * At 343 PM EDT, severe thunderstorms capable of producing waterspouts were located along a line extending from near Talbot Island to near Guana River State Park, moving east at 15 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... Atlantic Beach, Palm Valley, Jacksonville Beach, Mayport, Talbot Island, Nassau Sound Approach Buoy 6a, Saint Johns Lighted Buoy, Anna Reef, 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 3065 8110 3062 8091 2995 8077 2992 8137 3010 8141 3057 8146 TIME...MOT...LOC 1943Z 252DEG 17KT 3054 8140 3008 8131 WATERSPOUT...POSSIBLE HAIL...0.00IN WIND...40KTS $$ HESS