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 401 PM EDT, a severe thunderstorm capable of...
What the bulletin says 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.
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 401 PM EDT, a severe thunderstorm capable of producing waterspouts was located 11 nm south of Jekyll Island, or 17 nm south of St. Simons Island, moving northeast at 15 knots. HAZARD...Waterspouts and wind gusts 34 knots or greater. 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. * Locations impacted include... High Point, Buoy F, Buoy Cdh, Jekyll Island, St Simons Island Village, Saint Andrews Sound, Buoy Kby, Dungeness, Saint Marys Entrance Buoy 16, St Simons Sound Buoy 9, Cumberland Island, Whittakers Snapper Hole Reef, and St. Simons Island.
Lifecycle record
Official revisions
- Alert
Special Marine Warning issued August 28 at 4:01PM EDT until August 28 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