957  
FXHW01 KWNH 030741  
PMDHI  
 
HAWAII EXTENDED FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
340 AM EDT TUE OCT 03 2023  
 
VALID 00Z WED OCT 04 2023 - 00Z WED OCT 11 2023  
 
A LAND AND SEA BREEZE PATTERN WILL BE IN PLACE OVER HAWAII FOR THE  
NEXT FEW DAYS, AS TRADES DIMINISH AS A RESULT OF A WEAK PRESSURE  
GRADIENT DUE TO A SURFACE LOW WELL NORTH OF THE STATE PUSHING A  
FRONT ACROSS THE PACIFIC AND HOVERING NORTH NEAR THE ISLANDS.  
CLOUDS AND ANY SHOWERS THAT FORM WILL FAVOR THAT LAND/SEA BREEZE  
PATTERN THROUGH TUESDAY AND WEDNESDAY. THE FRONT LOOKS TO STALL  
AND DISSIPATE JUST NORTH OF HAWAII AROUND WEDNESDAY  
NIGHT/THURSDAY, WITH THE BAND OF MOISTURE AHEAD OF IT PERHAPS  
MAKING IT INTO THE NORTHWESTERN ISLANDS, BUT ANY ENHANCED RAIN  
LOOKS TO STAY NORTH. BY LATER IN THE WEEK, A SURFACE HIGH IS  
FORECAST TO FORM NORTHWEST OF THE STATE AND EXTEND ITS RIDGE  
TOWARD HAWAII, WITH ITS PRESSURE GRADIENT SUFFICIENT TO REFORM  
EASTERLY TRADES. A HYBRID TRADE/SEA BREEZE PATTERN LOOKS POSSIBLE  
ON THURSDAY BEFORE A MORE TYPICAL TRADE WIND PATTERN FORMS ON  
FRIDAY AND SHOULD PERSIST THROUGH THE WEEKEND INTO EARLY NEXT  
WEEK, WITH ANY SHOWERS FOCUSED ON WINDWARD/MAUKA AREAS.  
 
TATE  
 

 
 
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