{"url_path":"/weather/alerts/2.49.0.1.840.0.3c12b9c3da88d0ce648fe44ea341d84dbc88ceb3.001.1","section_key":"alert","section_title":"Special Marine Warning issued July 11 at 6:32PM EDT until July 11 at 7:30PM EDT by NWS Jacksonville FL","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-07-11","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.3c12b9c3da88d0ce648fe44ea341d84dbc88ceb3.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Jacksonville FL"},"word_count":244,"has_tables":false,"body_markdown":"# Special Marine Warning: Special Marine Warning issued July 11 at 6:32PM EDT until July 11 at 7:30PM EDT by NWS Jacksonville FL\n\n**Severity:** Severe\n**Certainty:** Likely\n**Urgency:** Immediate\n**Areas:** Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM; Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM\n**Issued by:** NWS Jacksonville FL\n**Sent:** 2026-07-11T18:32:00-04:00\n**Effective:** 2026-07-11T18:32:00-04:00\n**Expires:** 2026-07-11T19:30:00-04:00\n\n## Description\nSMWJAX\n\nThe National Weather Service in Jacksonville has issued a\n\n* Special Marine Warning for...\nCoastal waters from Altamaha Sound to Fernandina Beach FL out 20\nNM...\nCoastal waters from Fernandina Beach to St. Augustine FL out 20\nNM...\n\n* Until 730 PM EDT.\n\n* At 632 PM EDT, strong thunderstorms were located along a line\nextending from near Amelia City to near Jacksonville Beach, moving\neast at 5 knots.\n\nHAZARD...Wind gusts to 40 knots.\n\nSOURCE...Radar.\n\nIMPACT...Small craft could be damaged in briefly higher winds and\nsuddenly higher waves.\n\n* Locations impacted include...\nAtlantic Beach, Palm Valley, Jacksonville Beach, Mayport, Talbot\nIsland, Nassau Sound Approach Buoy 6a, Saint Johns Lighted Buoy,\nDungeness, Saint Marys Entrance Buoy 16, Amelia City, and\nWhittakers Snapper Hole Reef.\n\n## Instructions\nMove to safe harbor immediately as gusty winds and high waves are\nexpected. If your vessel is caught offshore, immediately secure for\nheavy weather. Ensure all crew members are wearing USCG approved Type\nI life jackets and nonessential crew are below decks. Deploy jack\nlines and harnesses if available. Check life saving equipment,\nincluding batteries on handheld radios, for readiness."}