932
FXHW01 KWNH 200743
PMDHI
HAWAII EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
242 AM EST WED DEC 20 2023
VALID 00Z THU DEC 21 2023 - 00Z THU DEC 28 2023
GUIDANCE STILL OVERALL AGREES TO MAINTAIN A PATTERN WITH INCREASED
MOISTURE AND STRENGTHENED EASTERLY TRADES THIS REGULAR WORKWEEK AS
POTENT SURFACE HIGH PRESSURE CELLS BRIDGE TO THE NORTH OF THE
STATE. THIS SHOULD FAVOR WINDWARD/MAUKA SHOWERS IN VICINITY OF A
MEAN UPPER TROUGH POSITION WHOSE INFLUENCE AND POOLING MOISTURE
SHOULD WANE THROUGH THE EXTENDED HOLIDAY WEEKEND. POTENT UPPER
TROUGH/SURFACE SYSTEM ENERGIES PROGRESSING THROUGH SPIRITED
WESTERLIES OVER THE MID-LATITUDES OF THE PACIFIC SHOULD
SUBSEQUENTLY ALLOW FOR SOME DISRUPTION OF ISLAND TRADES BY
CHRISTMAS WITH APPROACH FROM THE NORTH OF A MOISTURE/SHOWER
FOCUSING TRAILING COLD FRONT THAT WILL SLOWLY WEAKEN AND STALL,
PERHAPS JUST TO THE NORTH OF THE STATE EARLY/MID NEXT WEEK.
SCHICHTEL
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