WHUS52 KJAX 112156 SMWJAX AMZ452-472-112245- /O.NEW.KJAX.MA.W.0039.260511T2156Z-260511T2245Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Special Marine Warning National Weather Service Jacksonville FL 556 PM EDT Mon May 11 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 645 PM EDT. * At 556 PM EDT, a severe thunderstorm capable of producing waterspouts was located 17 nm east of Palm Valley, or 25 nm northeast of Saint Augustine, moving northeast at 20 knots. HAZARD...Waterspouts, wind gusts to 40 knots, and large hail. 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. Large hail could result in structural damage. * Locations impacted include... Casablanca Reef and Anna Reef. PRECAUTIONARY/PREPAREDNESS ACTIONS... Boaters should seek safe harbor immediately until this storm passes. Wind gusts to 40 knots, large hail, high waves, dangerous lightning, and heavy rain are possible with this storm. 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 3017 8109 3030 8118 3058 8085 3042 8069 3024 8066 TIME...MOT...LOC 2156Z 240DEG 20KT 3027 8106 WATERSPOUT...POSSIBLE HAIL...>.75IN WIND...40KTS $$ HESS