930
WHCA52 TJSJ 161003
SMWSJU
AMZ733-741-161045-
/O.NEW.TJSJ.MA.W.0047.251016T1003Z-251016T1045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service San Juan PR
603 AM AST Thu Oct 16 2025

The National Weather Service in San Juan has issued a

* Special Marine Warning for...
  Caribbean Waters of Puerto Rico from 10 NM to 17N, including the
  Coastal Waters of Saint Croix...
  Mona Passage Southward to 17N...

* Until 645 AM AST.

* At 601 AM AST, a severe thunderstorm capable of producing
  waterspouts was located over the northern part of Mona Passage,
  moving northeast at 15 knots.

  HAZARD...Waterspouts and wind gusts 34 knots or greater.

  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.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor immediately as gusty winds and high waves are
expected.

Frequent lightning is occurring with this storm. If caught on the
open water stay below deck if possible, keep away from ungrounded
metal objects.

Report severe weather to the Coast Guard or the National Weather
Service.

&&

LAT...LON 1848 6799 1850 6783 1850 6743 1844 6742
      1840 6744 1832 6744 1825 6740 1791 6739
      1785 6737 1795 6800 1809 6800 1809 6801
TIME...MOT...LOC 1001Z 229DEG 14KT 1832 6786

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

$$

CVB