441  
WGCA42 TJSJ 100945  
FLWSJU  
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED  
FLOOD WARNING  
NATIONAL WEATHER SERVICE SAN JUAN PR  
545 AM AST FRI MAY 10 2024  
 
PRC023-067-097-101600-  
/O.EXT.TJSJ.FA.W.0028.000000T0000Z-240510T1600Z/  
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
CABO ROJO PR-HORMIGUEROS PR-MAYAGUEZ PR-  
545 AM AST FRI MAY 10 2024  
   
..FLOOD WARNING NOW IN EFFECT UNTIL NOON AST TODAY
 
 
* WHAT...FLOODING CAUSED BY FLOOD WATERS FROM RIO GUANAJIBO.  
 
* WHERE...CABO ROJO, HORMIGUEROS AND MAYAGUEZ.  
 
* WHEN...UNTIL NOON AST FRIDAY.  
 
* 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. EXPECT  
MANY AREAS OF SLOW MOVING OR STANDING WATER. IT WILL TAKE SEVERAL  
HOURS FOR ALL THE WATER FROM THESE STORMS TO WORK THROUGH LOCAL  
DRAINAGE SYSTEMS IN URBAN AREAS.  
 
* ADDITIONAL DETAILS...  
- AT 542 AM AST, RIVER GAUGE REPORTS ALONG RIO GUANAJIBO AT  
HORMIGUEROS CONTINUES ABOVE ACTION STAGE (16 FEET), NOW  
AROUND 18.73 FEET. FLOOD WATERS ARE STILL AFFECTING PORTIONS  
OF ROADS PR-114 IN HORMIGUEROS. FOR THAT REASON, THE FLOOD  
WARNING HAS BEEN EXTENDED.  
- THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...  
RIO HONDO, RIO VIEJO, COASTAL WATERSHED NORTH OF RIO  
GUANAJIBO MOUTH, RIO GUANAJIBO AND RIO ROSARIO_GUANAJIBO  
WATERSHED.  
FLOODING IMPACTS WILL CONTINUE, BUT NO ADDITIONAL RAINFALL IS  
EXPECTED.  
- 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.  
 
STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME  
UNSTABLE AND UNSAFE.  
 

 
 
LAT...LON 1818 6718 1817 6717 1815 6714 1814 6713  
1813 6713 1812 6714 1814 6716 1817 6719  
 

 
 
ICP  
 
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