Special Marine Warning for Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM
Official alert fields
What you need to know
- 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 Fernandina Beach to St. Augustine FL out 20 NM... * Until 345 PM EDT. * At 243 PM EDT, a strong thunderstorm was located near Jacksonville Beach, or 24 nm north of Saint Augustine, moving northeast...
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 Fernandina Beach to St. Augustine FL out 20 NM... * Until 345 PM EDT. * At 243 PM EDT, a strong thunderstorm was located near Jacksonville Beach, or 24 nm north of Saint Augustine, moving northeast 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... Atlantic Beach, Palm Valley, Jacksonville Beach, South Ponte Vedra Beach, Guana River State Park, and Saint Johns Lighted Buoy.
Lifecycle record
Official revisions
- Alert
Special Marine Warning issued August 21 at 2:43PM EDT until August 21 at 3:45PM 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