897   
FXHW01 KWNH 270745  
PMDHI   
  
HAWAII EXTENDED FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
345 AM EDT TUE AUG 27 2024  
  
VALID 00Z WED AUG 28 2024 - 00Z WED SEP 04 2024  
  
...CONTINUING TO MONITOR POTENTIAL EFFECTS OF WEAKENING HURRICANE  
GILMA LATER IN THE WEEK...  
  
GUIDANCE IS CONSISTENT THROUGH WEDNESDAY, SHOWING MODERATE TO  
BRISK TRADES AND WINDWARD/MOUNTAIN SHOWER FOCUS ALONG WITH A DIP  
IN RAINFALL TUESDAY AS A BAND OF DRIER AIR PASSES THROUGH,  
FOLLOWED BY A REBOUND WEDNESDAY AS MOISTURE AHEAD OF HURRICANE  
GILMA REACHES THE AREA.  AS GILMA APPROACHES THE STATE IN A  
MUCH-WEAKENED FORM LATE THIS WEEK, THERE IS STILL SOME TRACK AND  
TIMING SPREAD FOR THE REMAINING SURFACE REFLECTION AND ASSOCIATED  
MOISTURE. THE OVERALL CONSENSUS HAS BEEN CONSISTENT OVER THE PAST  
DAY FOR A TRACK JUST NORTH OF THE MAIN ISLANDS, WHILE LATEST  
SOLUTIONS SUPPORT PROGRESSION A LITTLE FASTER THAN THE 00Z GFS.   
GILMA'S PASSAGE WILL DISRUPT THE TRADES TEMPORARILY WHILE  
MAINTAINING ABOVE-CLIMATOLOGY PRECIPITABLE WATER VALUES INTO LATE  
WEEK.  BEHIND GILMA, T.S. HECTOR SHOULD HAVE MINIMAL IMPACT ON THE  
STATE ASIDE FROM A REMNANT BAND OF MOISTURE PASSING THROUGH AROUND  
LATE WEEKEND.  HIGH PRESSURE TO THE NORTHEAST SHOULD HELP TO  
ESTABLISH MODERATE TO BRISK TRADES ONCE AGAIN BY SUNDAY-TUESDAY.   
GUIDANCE AGREES ON PWATS DECLINING AFTER SUNDAY WHILE UPPER  
RIDGING BECOMES MORE PREVALENT, SUPPORTING A LIGHTER TREND FOR  
SHOWERS.  
  
RAUSCH  
  
  
 
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