WHCA52 TJSJ 121810

SMWSJU

AMZ741-742-745-121845-

/O.NEW.TJSJ.MA.W.0023.260912T1810Z-260912T1845Z/



BULLETIN - IMMEDIATE BROADCAST REQUESTED

Special Marine Warning

National Weather Service San Juan PR

210 PM AST Sat Sep 12 2026



The National Weather Service in San Juan has issued a



* Special Marine Warning for...

  Mona Passage Southward to 17N...

  Coastal Waters of Northwestern Puerto Rico out 10 NM...

  Coastal Waters of Southwestern Puerto Rico out 10 NM...



* Until 245 PM AST.



* At 210 PM AST, a severe thunderstorm capable of producing

  waterspouts was located just offshore northern Cabo Rojo and

  Mayaguez, moving west at 5 knots.



  HAZARD...Waterspouts and wind gusts to 34 knots.



  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.



* Locations impacted include...

  Mainly open waters of Mona Passage Southward to 17N, Coastal Waters

  of Northwestern Puerto Rico out 10 NM and Coastal Waters of

  Southwestern Puerto Rico out 10 NM.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Move to safe harbor until hazardous weather passes.



Boaters should seek safe harbor immediately until this storm passes.

Wind gusts 34 knots or greater, high waves, dangerous lightning, and

heavy rain are possible with this storm.



Thunderstorms can produce sudden waterspouts. Waterspouts can easily

overturn boats and create locally hazardous seas. Seek safe harbor

immediately.



&&



LAT...LON 1830 6740 1826 6718 1823 6717 1822 6716

      1820 6715 1817 6718 1816 6717 1817 6719

      1815 6718 1813 6719 1810 6718 1809 6720

      1807 6720 1807 6718 1806 6720 1805 6720

      1804 6721 1803 6720 1799 6739

TIME...MOT...LOC 1809Z 86DEG 5KT 1813 6723



WATERSPOUT...POSSIBLE

MAX HAIL SIZE...0.00 IN

MAX WIND GUST...34 KTS



$$



CVB