397  
WGCA82 TJSJ 010425  
FLSSJU  
 
FLOOD ADVISORY  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1225 AM AST TUE SEP 1 2026  
 
PRC015-095-109-010435-  
/O.CAN.TJSJ.FA.Y.0224.000000T0000Z-260901T0630Z/  
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
ARROYO PR-MAUNABO PR-PATILLAS PR-  
1225 AM AST TUE SEP 1 2026  
   
..FLOOD ADVISORY IS CANCELLED
 
 
THE FLOOD ADVISORY IS CANCELLED FOR A PORTION OF PUERTO RICO,  
INCLUDING THE FOLLOWING AREAS, ARROYO, MAUNABO AND PATILLAS.  
 
THE THREAT FOR WIDESPREAD FLOODING HAS INCREASED OVER THE AREA.  
THEREFORE THE FLOOD ADVISORY HAS BEEN REPLACED BY A FLASH FLOOD  
WARNING. PLEASE REFER TO THAT BULLETIN FOR MORE INFORMATION.  
 

 
 
LAT...LON 1802 6620 1803 6617 1805 6617 1804 6613  
1809 6613 1810 6606 1806 6609 1803 6608  
1802 6609 1797 6607 1797 6609 1793 6615  
1794 6615 1793 6617 1795 6617 1795 6618  
1793 6621 1794 6620  
 

 
 
PRC057-010630-  
/O.CON.TJSJ.FA.Y.0224.000000T0000Z-260901T0630Z/  
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/  
GUAYAMA PR-  
1225 AM AST TUE SEP 1 2026  
 
...FLOOD ADVISORY REMAINS IN EFFECT UNTIL 230 AM AST EARLY THIS  
MORNING...  
 
* WHAT...URBAN AREA AND SMALL STREAM FLOODING CAUSED BY EXCESSIVE  
RAINFALL CONTINUES.  
 
* WHERE...GUAYAMA COUNTY IN PUERTO RICO...  
 
* WHEN...UNTIL 230 AM AST.  
 
* IMPACTS...MINOR FLOODING IN LOW-LYING AND POOR DRAINAGE AREAS.  
DANGEROUS FLOWS OVER LOW-WATER CROSSINGS.  
 
* ADDITIONAL DETAILS...  
- AT 1224 AM AST, DOPPLER RADAR INDICATED HEAVY RAIN DUE TO  
THUNDERSTORMS. THIS WILL CAUSE URBAN AND SMALL STREAM FLOODING.  
BETWEEN 2 AND 3 INCHES OF RAIN HAVE FALLEN.  
- ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE EXPECTED OVER  
THE AREA. THIS ADDITIONAL RAIN WILL RESULT IN MINOR FLOODING.  
 
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.  
 

 
 
LAT...LON 1802 6620 1803 6617 1805 6617 1804 6613  
1809 6613 1810 6606 1806 6609 1803 6608  
1802 6609 1797 6607 1797 6609 1793 6615  
1794 6615 1793 6617 1795 6617 1795 6618  
1793 6621 1794 6620  
 

 
 
YZR  
 
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