316  
FGCA72 TJSJ 151630  
ESFSJU  
PRC001-003-005-007-009-011-013-015-017-019-021-023-025-027-029-031-  
033-035-037-039-041-043-045-047-049-051-053>055-057-059-061-063-065-  
067-069-071-073-075-077-079-081-083-085-087-089-091-093-095-097-099-  
101-103-105-107-109-111-113-115-117-119-121-123-125-127-129-131-133-  
135-137-139-141-143-145-147-149-151-153-VIC010-020-030-162200-  
 
HYDROLOGIC OUTLOOK  
NATIONAL WEATHER SERVICE SAN JUAN PR  
1230 PM AST THU MAY 15 2025  
 
...THERE IS A RISK FOR FLOODING ACROSS PUERTO RICO AND THE U.S.  
VIRGIN ISLANDS, PARTICULARLY FRIDAY AND SATURDAY...  
 
AN UPPER-LEVEL TROUGH MOVING ACROSS THE NORTHEAST CARIBBEAN COMBINED  
WITH ABUNDANT MOISTURE WILL RESULT IN SHOWERS AND THUNDERSTORMS  
ACROSS THE LOCAL ISLAND FRIDAY AND SATURDAY.  
 
BASED ON THE LATEST GUIDANCE, THERE IS A CHANCE TO OBSERVE PERIODS  
OF SHOWERS AND THUNDERSTORMS FRIDAY AND SATURDAY. THE AREAS EXPECTED  
TO RECEIVE THE HIGHEST RAINFALL TOTALS INCLUDE NORTHWEST, CENTRAL  
AND THE EASTERN COASTAL AREAS OF PUERTO RICO AS WELL AS VIEQUES,  
CULEBRA AND THE US VIRGIN ISLANDS. ACROSS THESE AREAS THERE IS A  
MODERATE CHANCE(40-60%) TO OBSERVE 2 TO 4 INCHES WITH LOCALLY HIGHER  
AMOUNTS OF UP TO 6 INCHES. DUE TO ALREADY SATURATED SOILS AND RIVERS  
AND TRIBUTARIES RUNNING WELL ABOVE NORMAL LEVELS, THERE IS A RISK  
FOR FLOODING ACROSS PUERTO RICO AND THE US VIRGIN ISLANDS ON FRIDAY  
AND SATURDAY.  
 
ANY PROLONGED PERIOD OF HEAVY RAINFALL WILL RESULT IN URBAN AND  
FLASH FLOODING, RIVER FLOODING AND MUDSLIDES PARTICULARLY ACROSS  
CENTRAL AND EAST PUERTO RICO WHERE RAINFALL HAS BEEN ABUNDANT OVER  
THE PAST MONTH.  
 
 
DSR  
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