237  
FXHW01 KWNH 220717  
PMDHI  
 
HAWAII EXTENDED FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
316 AM EDT SAT JUN 22 2024  
 
VALID 00Z SUN JUN 23 2024 - 00Z SUN JUN 30 2024  
 
LATEST GUIDANCE CONTINUES TO SHOW A TYPICAL EASTERLY TRADE WIND  
PATTERN THROUGH THE NEXT SEVEN DAYS, SUPPORTED BY HIGH PRESSURE  
MEANDERING TO THE NORTH OF THE STATE. EXPECT BRISK TO STRONG WINDS  
THROUGH THE WEEKEND, FOLLOWED BY SOMEWHAT LOWER WIND SPEEDS NEXT  
WEEK AS THE UPPER HIGH SHIFTS A LITTLE TO THE NORTHWEST OF HAWAII  
AND UPPER TROUGHING APPROACHES FROM THE EAST. PRECIPITABLE WATER  
VALUES SHOULD REMAIN MOSTLY BELOW NORMAL, HELPING TO KEEP  
PRIMARILY WINDWARD/MOUNTAIN FOCUSED SHOWERS ON THE LIGHTER SIDE  
MOST OF THE TIME. MODELS SHOW GOOD OVERALL AGREEMENT ON THIS  
PATTERN, BUT SOME CONTINUED TIMING UNCERTAINTY WITH THE UPPER  
TROUGH/LOW EAST OF HAWAII. THE 00Z GFS IS ON THE FASTER SIDE,  
TRACKING THE UPPER LOW THROUGH HAWAII LATER IN THE WEEK, WHILE THE  
ECMWF, CMC, AND THE ENSEMBLE MEANS SUPPORT SOMETHING SLOWER AND  
MORE TO THE EAST. EITHER WAY, NOT MUCH IS EXPECTED IN TERMS OF  
SENSIBLE WEATHER FROM THIS FEATURE BESIDES OVERALL LIGHTER/WEAK  
WIND SPEEDS.  
 
SANTORELLI  
 

 
 
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