893  
FXHW01 KWNH 180726  
PMDHI  
 
HAWAII EXTENDED FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
326 AM EDT SUN MAY 18 2025  
 
VALID 00Z MON 19 MAY 2025 - 00Z MON 26 MAY 2025  
 
 
THIS WEEK WILL BE CHARACTERIZED BY MODERATE TO LOCALLY BREEZY  
TRADES GIVEN MIDLATITUDE SURFACE HIGH PRESSURE SYSTEMS TRACKING  
WELL NORTH OF HAWAII, MIDLEVEL LOWS AND EVENTUALLY A BROADER  
TROUGH ALOFT ALLOWING FOR A RAISED INVERSION, AND NORMAL TO ABOVE  
NORMAL MOISTURE LEVELS. THIS WILL ADD UP TO A WET TRADE WIND  
PATTERN WITH SHOWERS FAVORING WINDWARD AND MAUKA AREAS, WITH MINOR  
VARIATIONS IN MOISTURE AND WINDS FROM DAY TO DAY. SLIGHTLY DRIER  
AIR IS FORECAST AROUND TUESDAY, WHILE BY THURSDAY OR SO MOISTURE  
WILL BE INCREASED AGAIN AND BRING GREATER SHOWER COVERAGE  
ESPECIALLY TO WESTERN ISLANDS. MOISTURE LEVELS MAY RETURN CLOSER  
TO NORMAL BY NEXT WEEKEND.  
 
TATE  
 

 
 
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