030  
FLCA42 TJSJ 300818  
HWOSJU  
 
HAZARDOUS WEATHER OUTLOOK  
NATIONAL WEATHER SERVICE SAN JUAN PR  
418 AM AST THU MAY 30 2024  
 
AMZ711>745-PRZ001>013-310830-  
SAN JUAN AND VICINITY-NORTHEAST-SOUTHEAST-EASTERN INTERIOR-  
NORTH CENTRAL-CENTRAL INTERIOR-PONCE AND VICINITY-NORTHWEST-  
WESTERN INTERIOR-MAYAGUEZ AND VICINITY-SOUTHWEST-CULEBRA-VIEQUES-  
THE NEARSHORE AND OFF SHORE ATLANTIC AND CARIBBEAN COASTAL WATERS-  
418 AM AST THU MAY 30 2024  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF PUERTO RICO.  
   
DAY ONE
 
TODAY AND TONIGHT  
   
LIGHTNING
 
ISOLATED TO SCATTERED THUNDERSTORMS POSSIBLE ACROSS  
NORTHWESTERN PUERTO RICO. BE AWARE OF THUNDERSTORMS IN YOUR AREA  
AND BE PREPARED TO TAKE SHELTER.  
   
EXCESSIVE RAINFALL
 
FLOODING OF URBAN AREAS, ROADS, SMALL  
STREAMS, AND WASHES. ISOLATED FLASH FLOODS POSSIBLE.  
   
EXCESSIVE HEAT
 
HEAT INDEX 108-111 DEGREES EXPECTED ACROSS  
THE WEST TO NORTHEASTERN SECTIONS OF PUERTO RICO. HEAT EXHAUSTION  
LIKELY WITH PROLONGED EXPOSURE. HEAT STROKE POSSIBLE.  
   
DAYS TWO THROUGH SEVEN
 
FRIDAY THROUGH WEDNESDAY  
 
HOT AND MUGGY CONDITIONS WILL PERSIST FOR THE NEXT SEVERAL DAYS.  
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS MAY CAUSE PONDING OF  
WATER IN ROADS AND POOR DRAINAGE AREAS EACH AFTERNOON MAINLY  
ACROSS NORTHWESTERN PUERTO RICO. A MASS OF DRIER AIR, WITH  
MODERATE CONCENTRATION OF SAHARAN DUST WILL PERSIST ACROSS THE  
LOCAL REGION THROUGH SUNDAY.  
   
SPOTTER INFORMATION STATEMENT
 
 
SPOTTER ACTIVATION WILL NOT BE NEEDED.  
 

 
 
AMZ716-726-VIZ001-002-310830-  
ST. THOMAS ST. JOHN ADJACENT ISLANDS-ST CROIX-  
NEARSHORE ATLANTIC AND ADJACENT CARIBBEAN COASTAL WATERS-  
418 AM AST THU MAY 30 2024  
 
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF USVI.  
   
DAY ONE
 
TODAY AND TONIGHT  
   
LIGHTNING
 
ISOLATED TO SCATTERED THUNDERSTORMS POSSIBLE ACROSS  
THE U.S. VIRGIN ISLANDS. BE AWARE OF THUNDERSTORMS IN YOUR AREA  
AND BE PREPARED TO TAKE SHELTER.  
   
EXCESSIVE HEAT
 
HEAT INDEX 108-111 DEGREES EXPECTED ACROSS  
ST. CROIX. HEAT EXHAUSTION LIKELY WITH PROLONGED EXPOSURE. HEAT  
STROKE POSSIBLE.  
 
   
RIP CURRENTS
 
LIFE-THREATENING RIP CURRENTS ARE POSSIBLE IN THE  
SURF ZONE PARTICULARLY IN ST. CROIX  
   
DAYS TWO THROUGH SEVEN
 
FRIDAY THROUGH WEDNESDAY  
 
HOT AND MUGGY CONDITIONS WILL PERSIST FOR THE NEXT SEVERAL DAYS.  
SCATTERED TO ISOLATED SHOWERS WILL AFFECT THE LOCAL ISLANDS,  
MAINLY DURING THE MORNING HOURS EACH DAY. A MASS OF DRIER AIR,  
WITH MODERATE CONCENTRATION OF SAHARAN DUST WILL PERSIST ACROSS  
THE LOCAL REGION THROUGH SUNDAY.  
   
SPOTTER INFORMATION STATEMENT
 
 
SPOTTER ACTIVATION WILL NOT BE NEEDED.  
 

 
 
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