600  
FXHW01 KWNH 260756  
PMDHI  
 
HAWAII EXTENDED FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
255 AM EST THU DEC 26 2024  
 
VALID 00Z FRI DEC 27 2024 - 00Z FRI JAN 03 2025  
 
OVER THE NEXT COUPLE DAYS, GENERALLY SOUTHEASTERLY FLOW WILL BE  
PRESENT ACROSS THE STATE (WITH SOME SEA/LAND BREEZES PERHAPS  
ARISING OVER THE ISLANDS) AS A SURFACE HIGH IS LOCATED TO THE  
EAST. ALOFT, A SUBTROPICAL RIDGE SHOULD LIMIT TOO MANY SHOWERS. BY  
LATE FRIDAY OR SATURDAY, THE UPPER RIDGE AXIS IS LIKELY TO BREAK  
OVER HAWAII IN RESPONSE TO A TROUGH THAT EVENTUALLY PRODUCES AN  
UPPER LOW SETTING UP SOUTHEAST OF THE STATE EARLY NEXT WEEK.  
MEANWHILE A FRONT IS FORECAST TO PUSH INTO KAUAI AND PERHAPS TO  
OAHU, PROVIDING A FOCUS FOR MODERATE TO POSSIBLY HEAVY RAIN  
SHOWERS THIS WEEKEND AS IT STALLS. BEHIND THE FRONT, A SURFACE  
HIGH WILL SET UP NORTH OF THE STATE AND ALLOW FOR TRADE WINDS TO  
RESUME EARLY NEXT WEEK. MOISTURE REMAINING IN PLACE WILL HELP  
PRODUCE SHOWERS, WHICH SHOULD FAVOR WINDWARD/MAUKA AREAS DUE TO  
THE WIND PATTERN. THE EASTERN SIDE OF THE BIG ISLAND ON  
MONDAY-TUESDAY MAY SEE THE HEAVIEST RAIN GIVEN THE PROXIMITY TO  
THE UPPER LOW TO THE EAST. SOME SHOWERS AND EASTERLY TRADES ARE  
LIKELY TO CONTINUE INTO MIDWEEK.  
 
TATE  
 
 
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