338  
FXHW01 KWNH 030718  
PMDHI  
 
HAWAII EXTENDED FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
317 AM EDT MON APR 03 2023  
 
VALID 00Z TUE APR 04 2023 - 00Z TUE APR 11 2023  
 
LATEST GUIDANCE REASONABLY AGREES THAT HIGH PRESSURE CENTERED TO  
THE NORTHWEST OF THE ISLANDS WILL BRIDGE BACK TO THE NORTH OF THE  
STATE TO SUPPORT DEVELOPMENT OF MODERATE TO BREEZY TRADES OVER THE  
STATE THROUGH MID-LATE WEEK AS UPPER TROUGHING SETTLES OVER THE  
STATE. WHILE SOME SHOWERS SHOULD LINGER IN THE SHORT TERM OVER THE  
WESTERN ISLANDS WITHIN A PLUME OF DEEPER MOISTURE, THE PATTERN  
TRANSITION WILL TEND TO FOCUS SHOWERS/DOWNPOURS OVER FAVORED  
WINDWARD TERRAIN STATEWIDE. TRADE SUPPORTING RIDGING TO THE NORTH  
OF THE STATE SHOULD WEAKEN THIS WEEKEND. A FAVORED COMPOSITE OF  
REASONABLY WELL CLUSTERED MODEL AND ENSEMBLE GUIDANCE INDICATES  
THAT SIGNIFICANT UPPER TROUGH AMPLIFICATION OVER THE MID-UPPER  
LATITUDES OF THE CENTRAL PACIFIC WOULD THEN FORCE A  
SHOWER/THUNDERSTORM FOCUSING COLD FRONT TOWARD THE STATE WHOSE  
LEAD FLOW RESPONSE MAY SUPPORT RETURN TROPICAL MOISTURE FLOW UP  
INTO THE STATE TO BETTER FUEL SHOWERS INTO EARLY NEXT WEEK,  
POSSIBLY FOLLOWED BY AN UPTICK OF TRADES.  
 
SCHICHTEL  
 

 
 
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