NOAA NWS / CAPTURE HISTORY
Special Marine Warning issued October 10 at 3:45AM EDT until October 10 at 4:45AM EDT by NWS Jacksonville FL
Latest captured source record. This is an archive, not a current warning service.
Open the detailed event record ↗- First tracked
- 2026-10-10 07:59:51.478Z
- Last seen in a feed
- 2026-10-10 08:44:51.528Z
- Source classification
- Severe · Source alert
- Issuer / area
- NWS Jacksonville FL · Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM
- Certainty / urgency
- Likely / Immediate
- Message expiry (not hazard end)
- 2026-10-10T08:45:00.000Z
- Forecast onset / end
- 2026-10-10T07:45:00.000Z / 2026-10-10T08:45:00.000Z
Special Marine Warning · Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM. Severe; likely; urgency: immediate.
Archived official description
SMWJAX The National Weather Service in Jacksonville has issued a * Special Marine Warning for... Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM... * Until 445 AM EDT. * At 345 AM EDT, a strong thunderstorm was located 21 nm southeast of Tug Rio Caroni, or 21 nm south of R2 Tower, moving north at 50 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * The strong thunderstorm will remain over mainly open waters.
Instructions in this archived message
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.
How the record changed
Only changes captured by this journal are listed; this is not the authority’s complete history. Timestamps distinguish publication from our capture. Missing messages are never treated as cancellations.
newly tracked · Captured 2026-10-10 07:59:51.478Z
Special Marine Warning issued October 10 at 3:45AM EDT until October 10 at 4:45AM EDT by NWS Jacksonville FL
Special Marine Warning · Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM. Severe; likely; urgency: immediate.
Source issued/updated 2026-10-10T07:45:00.000Z · Source alert
Source for this capture ↗