686  
WWPQ82 PGUM 050623  
SPSPQ2  
 
SPECIAL WEATHER STATEMENT  
NATIONAL WEATHER SERVICE TIYAN GU  
423 PM CHST THU JUN 5 2025  
 
FMZ037-PWZ002>006-060800-  
YAP-MELEKEOK-AIRAI-KOROR-PELELIU-ANGAUR-  
423 PM CHST THU JUN 5 2025  
 
...DEVELOPING MONSOON SURGE AND DISTURBANCE TO BRING HEAVY DOWNPOURS  
AND GUSTY WINDS THE REST OF THE WEEK...  
 
AN UNSETTLED WEATHER PATTERN REMAINS IN STORE FOR PALAU AND YAP FOR  
THE REST OF THE WEEK. A TROPICAL DISTURBANCE, KNOWN AS JTWC'S INVEST  
92W IS CENTERED JUST NORTHWEST YAP PROPER, AND IS EXPECTED TO FURTHER  
CONSOLIDATE WELL NORTHWEST OF YAP AND PALAU OVER THE NEXT FEW DAYS. A  
SERIES OF SOUTHWESTERLY MONSOON SURGES WILL CONTINUE TO PUMMEL BOTH  
PALAU AND YAP AS WELL.  
 
MODEL GUIDANCE HAS INDICATED SIGNIFICANT STALLING IN DEVELOPMENT  
ASSOCIATED WITH INVEST 92W, WITH LITTLE LIKELIHOOD OF DEVELOPING INTO  
A SIGNIFICANT TROPICAL CYCLONE OVER THE NEXT 24 HOURS AS IT CONTINUES  
TO MOVE AWAY FROM THE MAIN ISLANDS OF PALAU AND YAP. EVEN SO, THE  
SOUTHWESTERLY MONSOON TROUGH AND ASSOCIATED SURGES WILL CONTINUE TO  
BRING SIGNIFICANT RAINFALL AND THUNDER TO PALAU AND YAP OVER THE NEXT  
FEW DAYS. DUE TO THE LACKLUSTER NATURE OF THE CURRENT STAGE OF THE  
MONSOON AND THE AFOREMENTIONED POTENTIAL DISTURBANCE, VARIABILITY IN  
AREAS OF CONVECTIVE DEVELOPMENT MAY PRODUCE PERIODS OF LITTLE TO NO  
WEATHER FOLLOWED BY SPORADIC HEAVY SHOWERS AND THUNDERSTORMS. IN  
ADDITION, HIGH UNCERTAINTY REMAINS REGARDING RAINFALL AMOUNTS, BUT  
THE TREND CONTINUES TO INDICATE AN ADDITIONAL 3 TO 5 INCHES AT  
PALAU, AND ANOTHER 4 TO 6 INCHES AT YAP OVER THE NEXT 48 HOURS. AT  
THIS TIME, LANDSLIDES CONTINUE TO BE UNLIKELY; HOWEVER, IF SOILS  
BECOME SATURATED, ANY ADDITIONAL RAINFALL MAY QUICKLY BECOME RUNOFF  
AND INCREASE MUDSLIDE RISKS, ESPECIALLY AT PALAU.  
 
WHILE TRADE SWELLS HAVE WEAKENED, LOCALIZED WIND WAVES AND A  
DEVELOPING SOUTHWEST SWELL WILL PRODUCE CHOPPY SEAS IN PALAU AND YAP  
COASTAL WATERS OVER MUCH OF THE WEEK. SURF WILL CONTINUE TO INCREASE  
ALONG SOUTH AND WEST FACING REEFS OF PALAU AND YAP, BUT ARE NOT  
LIKELY TO BECOME HAZARDOUS AT THIS TIME.  
 
RESIDENTS AND MARINERS SHOULD MONITOR THE LATEST FORECASTS FOR THE  
REGION AT WEATHER.GOV/GUM/PUBLICFORECASTS AND ANY INFORMATION SHARED  
BY WSO PALAU AND WSO YAP FOR THEIR LOCAL REGIONS.  
 

 
 
MONTVILA  
 
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