Prognostic Meteorological Discussion
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FXHW01 KWNH 221221
PMDHI

HAWAII EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
820 AM EDT MON SEP 22 2014

VALID 00Z TUE SEP 23 2014 - 00Z TUE SEP 30 2014

LATEST MODELS AND ENSEMBLES STILL SHOW REASONABLE AGREEMENT ON
UPPER RIDGING INITIALLY NW OF HAWAII NEAR THE DATELINE TO MOVE
GRADUALLY EASTWARD ALONG 30N THROUGH MUCH OF THIS WEEK. BY
MIDWEEK, THE UPPER/SURFACE HIGH NEAR 165W AND APPROACH OF A FRONT
FROM THE NORTH AND INTO THE ISLANDS SHOULD INCREASE MOISTURE
POOLING AND ENHANCED SHOWER POTENTIAL OVER THE STATE THAT SHOULD
LINGER INTO NEXT WEEKEND. WITH ASSOCIATED DEVELOPMENT OF A
STRONGER THAN AVERAGE PRESSURE GRADIENT, TRADES SHOULD BE HIGHER
THAN AVERAGE.

JAMES

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