140
WHUS52 KJAX 202142
SMWJAX
AMZ452-454-202230-
/O.NEW.KJAX.MA.W.0142.260720T2142Z-260720T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Jacksonville FL
542 PM EDT Mon Jul 20 2026

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...
  Coastal waters from St. Augustine to Flagler Beach FL out 20 NM...

* Until 630 PM EDT.

* At 542 PM EDT, a severe thunderstorm capable of producing
  waterspouts was located near Marineland, or 10 nm north of Palm
  Coast, moving north at 20 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...
  Nine Mile Reef, Saint Augustine, Saint Augustine Beach, Crescent
  Beach, Beverly Beach, Butler Beach, Vilano Beach, Marineland, South
  Ponte Vedra Beach, and Palm Coast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes. 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.

&&

LAT...LON 2955 8124 2963 8125 2965 8128 2973 8128
      2981 8135 3005 8140 3000 8099 2949 8109
TIME...MOT...LOC 2142Z 179DEG 18KT 2971 8118

WATERSPOUT...POSSIBLE
HAIL...0.00IN
WIND...40KTS

$$

HESS