275  
FXHW01 KWNH 300707  
PMDHI  
 
HAWAII EXTENDED FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
307 AM EDT THU OCT 30 2025  
 
VALID 00Z FRI 31 OCT 2025 - 00Z FRI 07 NOV 2025  
 
UPPER RIDGING LOOKS TO BUILD BACK IN NORTH/OVER HAWAII THROUGH  
SATURDAY. BY SUNDAY, A DEEPER SHORTWAVE WILL SWING A COLD FRONT  
TOWARDS THE ISLANDS EARLY NEXT WEEK WITH INCREASED SHOWERS AND  
WINDS. THERE IS STILL UNCERTAINTY IN WHETHER A WEAK CUTOFF LOW  
LINGERS OVER THE STATE INTO MIDWEEK NEXT WEEK OR IT'S JUST A  
GENERAL WEAKNESS IN THE RIDGE. THE GFS SOLUTION OF A WEAK LOW  
WEST/SOUTHWEST OF HAWAII WOULD BRING IN MORE MOISTURE AND HEAVIER  
RAINFALL POTENTIAL BUT AT THIS POINT SEEMS TO BE THE OUTLIER  
SOLUTION. THIS POTENTIAL IS WORTH MONITORING AS GUIDANCE HAS BEEN  
VARIABLE THE PAST FEW RUNS. AT THE VERY LEAST, SOME INCREASED  
SHOWERY ACTIVITY IS EXPECTED BY THE MIDDLE TO LATTER PART OF NEXT  
WEEK.  
 
SANTORELLI  
 
 
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