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
Official alert fields
What you need to know
- Applies to
- Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM, Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM
- Effective
- Ended
- Official severity
- Severe
- Official urgency
- Immediate
- Official certainty
- Likely
What is happening
SMWJAX The National Weather Service in Jacksonville has 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... * Until 445 PM EDT. * At 347 PM EDT, a strong thunderstorm was located over...
What the bulletin says to do
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.
Full official description
Bulletin details
SMWJAX The National Weather Service in Jacksonville has 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... * Until 445 PM EDT. * At 347 PM EDT, a strong thunderstorm was located over Amelia City, or 33 nm south of St. Simons Island, moving northeast at 10 knots. HAZARD...Wind gusts 34 knots or greater and small hail. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Dungeness, Saint Marys Entrance Buoy 16, Amelia City, Buoy Kby, and Whittakers Snapper Hole Reef.
Lifecycle record
Official revisions
- Alert
Special Marine Warning issued August 10 at 3:47PM EDT until August 10 at 4:45PM EDT by NWS Jacksonville FL
Official revision
Source and limitations
Publisher: Weather Alert Watch. Primary source: NWS Jacksonville FL. This page reorganizes official fields and does not add a forecast or expand the affected area.
- CAP status
- Actual
- Message type
- Alert
- Last collected