278  
FXHW01 KWNH 140729  
PMDHI  
 
HAWAII EXTENDED FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
228 AM EST SAT DEC 14 2024  
 
VALID 00Z SUN DEC 15 2024 - 00Z SUN DEC 22 2024  
 
UPPER RIDGING OVER HAWAII SHOULD CONTINUE TO SUPPORT MODERATE TO  
STRONG TRADE WINDS THROUGH AT LEAST THIS WEEKEND. TRADE WINDS  
SHOULD TREND WEAKER AND SHIFT IN A MORE SOUTHERLY DIRECTION AS A  
WEAK SHORTWAVE AND COLD FRONT PASS JUST NORTH OF THE MAIN ISLANDS.  
THIS MAY BRING SOME INCREASED MOISTURE AND SEA BREEZE INFLUENCED  
PRECIPITATION EARLY TO MID NEXT WEEK. BY THURSDAY, THE GUIDANCE  
CONTINUES TO SHOW A COLD FRONT AND ASSOCIATED MOISTURE BAND  
REACHING VERY CLOSE OR INTO THE MAIN ISLANDS, WITH SOME INCREASE  
IN SHOWERS EXPECTED. THERE IS SOME UNCERTAINTY STILL ON HOW FAR  
SOUTH THE COLD FRONT MAY REACH BUT A GENERAL MODEL COMPROMISE  
SHOULD WORK WELL AT THIS POINT GIVEN TYPICAL LOW PREDICTABILITY  
THIS FAR OUT IN TIME.  
 
SANTORELLI  
 
 
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