Special Marine Warning for Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM; Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM
Official alert fields
What you need to know
- Applies to
- Coastal waters from Fernandina Beach to St. Augustine FL out 20 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 Fernandina Beach to St. Augustine FL out 20 NM... Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM... * Until 445 PM EDT. * At 343 PM EDT, severe thunderstorms capable of producing...
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. 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 Fernandina Beach to St. Augustine FL out 20 NM... Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM... * Until 445 PM EDT. * At 343 PM EDT, severe thunderstorms capable of producing waterspouts were located along a line extending from near Talbot Island to near Guana River State Park, moving east at 15 knots. HAZARD...Waterspouts and wind gusts to 40 knots. 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... Atlantic Beach, Palm Valley, Jacksonville Beach, Mayport, Talbot Island, Nassau Sound Approach Buoy 6a, Saint Johns Lighted Buoy, Anna Reef, Vilano Beach, South Ponte Vedra Beach, Guana River State Park, and Saint Augustine.
Lifecycle record
Official revisions
- Alert
Special Marine Warning issued August 4 at 3:43PM EDT until August 4 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