Special Marine Warning issued May 12 at 5:39PM EDT until May 12 at 6:00PM EDT by NWS Jacksonville FL
Details
For the following areas...
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM...
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM...
At 538 PM EDT, a severe thunderstorm capable of producing waterspouts
was located 26 nm east of Marineland, or 29 nm northeast of Palm
Coast, moving east at 5 knots.
HAZARD...Waterspouts, wind gusts to 40 knots, and large hail.
SOURCE...Radar indicated.
IMPACT...Waterspouts can easily overturn boats and create locally
hazardous seas. Small craft could be damaged in briefly
higher winds and suddenly higher waves. Large hail could
result in structural damage.
The severe thunderstorm will remain over mainly open waters.
Recommendations
Boaters should seek safe harbor immediately until this storm passes.
Wind gusts to 40 knots, large hail, high waves, dangerous lightning,
and heavy rain are possible with this storm. 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.