655  
FXHW01 KWNH 091229  
PMDHI  
 
HAWAII EXTENDED FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
729 AM EST THU NOV 09 2017  
 
VALID 00Z FRI NOV 10 2017 - 00Z FRI NOV 17 2017  
 
IT REMAINS THE CASE THAT RECENT MODELS AND ENSEMBLES STILL  
GENERALLY AGREE THAT WEAKENING UPPER RIDGING OVER THE REGION WILL  
SHIFT WESTWARD AND BE REPLACED BY TROUGHING THIS WEEKEND INTO NEXT  
WEEK, NUDGING WESTWARD PAST 150W. THIS SUPPORTS A FAIRLY QUIET  
PATTERN THROUGH THE WEEKEND WITH GENERALLY LIGHT WINDWARD/MAUKA  
SHOWERS VIA MODEST TRADES. PRECIPITABLE WATER VALUES ARE FORECAST  
TO REMAIN NEAR TO BELOW AVERAGE UNTIL NEXT WEEK WHEN A GRADUAL  
INCREASE IS LIKELY. THIS SHOULD BRING AN INCREASE TO SHOWER  
ACTIVITY OVER THE EASTERN ISLANDS (BIG ISLAND AND MAUI) AS WELL AS  
FAVORED WINDWARD AREAS. A GUIDANCE COMPOSITE SEEMS REASONABLE.  
 
SCHICHTEL  
 

 
 
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