458  
WGCA42 TJSJ 162154  
FLWSJU  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
FLOOD WARNING  
NATIONAL WEATHER SERVICE SAN JUAN PR  
554 PM AST THU APR 16 2026  
 
PRC069-151-162345-  
/O.NEW.TJSJ.FA.W.0012.260416T2154Z-260416T2345Z/  
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
HUMACAO PR-YABUCOA PR-  
554 PM AST THU APR 16 2026  
   
..FLOOD WARNING IN EFFECT UNTIL 745 PM AST THIS EVENING  
   
..REPLACES FLOOD ADVISORY  
 
* WHAT...FLOODING CAUSED BY EXCESSIVE RAINFALL IS EXPECTED.  
 
* WHERE...HUMACAO AND YABUCOA.  
 
* WHEN...UNTIL 745 PM AST.  
 
* IMPACTS...FLOODING OF RIVERS, CREEKS, STREAMS, AND OTHER LOW-LYING  
AND FLOOD-PRONE LOCATIONS IS IMMINENT OR OCCURRING. LOW-WATER  
CROSSINGS ARE INUNDATED WITH WATER AND MAY NOT BE PASSABLE.  
 
* ADDITIONAL DETAILS...  
- AT 548 PM AST, DOPPLER RADAR INDICATED HEAVY RAIN DUE TO  
THUNDERSTORMS. FLOODING IS ONGOING OR EXPECTED TO BEGIN  
SHORTLY IN THE WARNED AREA. BETWEEN 2 AND 6 INCHES OF RAIN  
HAVE FALLEN.  
- ADDITIONAL RAINFALL AMOUNTS UP TO 2 INCHES ARE POSSIBLE IN  
THE WARNED AREA. SENSORS YBUP4 AND GCRP4 IN RIO GUAYANES,  
YABUCOA, CONTINUE TO REPORT THAT THE RIVER IS IN ACTION STAGE  
WITH THEM REPORTING 18.27 FT AND 24.73 FT, RESPECTIVELY.  
EMERGENCY MANAGERS IN HUMACAO REPORTED THAT FLOODING WAS  
AFFECTING A COUPLE OF NEIGHBORHOODS.  
- SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...  
HUMACAO, YABUCOA, MARTORELL, LA FERMINA, ANTON RUIZ, PUNTA  
SANTIAGO, PLAYITA, CANDELERO ARRIBA, COMUNAS, EL NEGRO, ROSA  
SANCHEZ AND BAJANDAS.  
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD  
DEATHS OCCUR IN VEHICLES.  
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE  
DANGERS OF FLOODING.  
 
PLEASE REPORT OBSERVED FLOODING TO LOCAL EMERGENCY SERVICES OR LAW  
ENFORCEMENT AND REQUEST THEY PASS THIS INFORMATION TO THE NATIONAL  
WEATHER SERVICE WHEN YOU CAN DO SO SAFELY.  
 
 
 
LAT...LON 1817 6586 1818 6584 1820 6582 1821 6579  
1820 6576 1818 6577 1818 6574 1813 6578  
1806 6580 1805 6584 1801 6583 1806 6598  
1806 6600 1808 6600 1809 6599 1809 6594  
1811 6593 1812 6593 1813 6591 1812 6588  
 
 
 
MRR  
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