NWS Jacksonville FLMA.W 0238October 4, 2026
Special Marine Warning: 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 Fernan
The National Weather Service office in Jacksonville 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 and 1 more, which was in force until 9:30 p.m. local time on October 4. It was the 238th special marine warning the NWS office in Jacksonville issued in 2026.
ExpiredWarning
In force for 1.6 hours; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Jacksonville FL
- Area
- 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 and 1 more
- Level
- Warning
- Issued
- 7:53 p.m. EDT, October 4, 2026
- Expires
- 9:30 p.m. EDT, October 4, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Immediate
- VTEC event
- KJAX MA.W 0238
- Official source
- National Weather Service: the notice at its source
NWS notices, October 2026The latest from the National Weather Service
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
For the following 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... 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... At 753 PM EDT, Strong to severe thunderstorms capable of producing waterspouts and gusty winds were located along a line extending from 7 nm south of Tug Rio Caroni to 32 nm east of Amelia City to 18 nm east of Atlantic Beach, moving east at 10 knots. HAZARD...Waterspouts and wind gusts 34 knots or greater. SOURCE...Radar indicated. 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... Buoy Hlha and Anna Reef.
What the agency told people to do
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.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.