Prognostic Meteorological Discussion
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FXHW01 KWNH 191230
PMDHI

HAWAII EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
829 AM EDT SAT AUG 19 2017

VALID 00Z SUN AUG 20 2017 - 00Z SUN AUG 27 2017

MODELS AND ENSEMBLES REASONABLY AGREE THAT AN INVERTED UPPER
TROUGH WILL SLIDE SLOWLY WESTWARD OVER THE ISLANDS OVER THE NEXT
COUPLE OF DAYS. WEAKENED TRADES SHOULD PROVIDE TROPICAL MOSITURE
AND THE POTENTIAL FOR SOME ENHANCED SHOWER ACTIVITY.

HIGH PRESSURE BUILDING TO THE NORTH OF THE STATE FAVORS INCREASING
TRADE FLOW BY TUESDAY THAT SHOULD HOLD THROUGHOUT THE REST OF THE
WEEK. THIS PATTERN WILL OFFER DECREASING MOISTURE WITH LINGERING
RAINFALL MAINLY CONFINED TO WINDWARD TERRAIN.

SCHICHTEL

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