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 +1 more
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, 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
- 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... Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM......
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... 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... * Until 215 PM EDT. * At 116 PM EDT, strong thunderstorms were located along a line extending from Amelia City to near Guana River State Park, moving east at 20 knots. HAZARD...Wind gusts 34 knots or greater. SOURCE...Radar. IMPACT...Small craft could be damaged in briefly higher winds and suddenly higher waves. * Locations impacted include... Dorothy Louise Barge, Casablanca Reef, Atlantic Beach, Mayport, Nassau Sound Approach Buoy 6a, Anna Reef, Vilano Beach, Amelia City, South Ponte Vedra Beach, Palm Valley, Jacksonville Beach, Talbot Island, Buoy Kby, Saint Johns Lighted Buoy, Dungeness, Saint Marys Entrance Buoy 16, Whittakers Snapper Hole Reef, Guana River State Park, and Saint Augustine.
Lifecycle record
Official revisions
- Alert
Special Marine Warning issued August 12 at 1:16PM EDT until August 12 at 2:15PM 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