Prognostic Meteorological Discussion
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FXHW01 KWNH 021155
PMDHI

HAWAII EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
754 AM EDT TUE JUN 02 2015

VALID 00Z WED JUN 03 2015 - 00Z WED JUN 10 2015

DIFFUSE UPPER-LEVEL TROUGHING ACROSS THE CENTRAL PACIFIC IS
SUPPORTED BY A SURFACE TROUGH AND HIGH-AMPLITUDE FLOW IN THE GULF
OF ALASKA THROUGH MUCH OF THIS FORECAST PERIOD.

THE 2/00Z DETERMINISTIC FORECAST GUIDANCE SUGGESTED THAT THE
PERSISTENCE OF A HIGHER-AMPLITUDE WAVE PATTERN IN THE EASTERN
PACIFIC WILL EVENTUALLY SPAWN A CUTOFF 500MB CIRCULATION BEYOND
THE DAY 6 PERIOD --- AND NESTLE THIS FEATURE ALONG 25N 160W.

IF THIS CUTOFF RESEMBLES THE FEATURE CURRENTLY INVOF KAUAI---THEN
NOT MUCH OF A FORECAST CONCERN BEYOND DAY 6--- AND THE GOING
FORECAST LOOKS ON TRACK FOR HAWAI`I --- I.E. A PERSISTENT TRANQUIL
WEATHER PATTERN.

VOJTESAK



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