857
WHUS52 KJAX 200410
SMWJAX
AMZ452-200515-
/O.NEW.KJAX.MA.W.0205.260820T0410Z-260820T0515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Jacksonville FL
1210 AM EDT Thu Aug 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...

* Until 115 AM EDT.

* At 1210 AM EDT, a strong thunderstorm was located near Jacksonville
  Beach, or 21 nm north of Saint Augustine, moving east at 5 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...
  Guana River State Park and Palm Valley.

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 3041 8106 3036 8106 3033 8105 3031 8105
      3028 8103 3025 8103 3020 8101 3018 8101
      3017 8100 3000 8098 3006 8136 3034 8139
TIME...MOT...LOC 0410Z 282DEG 6KT 3025 8129

HAIL...0.00IN
WIND...>34KTS

$$

23