Prognostic Meteorological Discussion
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FXHW01 KWNH 291201
PMDHI

HAWAII EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
800 AM EDT MON MAY 29 2017

VALID 00Z TUE MAY 30 2017 - 00Z TUE JUN 06 2017

TRADES WILL SOON BEGIN TO STRENGTHEN AS AN EAST-WEST SURFACE RIDGE
TO THE NORTH OF THE STATE BECOMES BETTER DEFINED, WITH WINDS
LIKELY REMAINING AT MODERATE TO BRISK LEVELS THROUGH THE WEEK.  AS
HIGH PRESSURE RETREATS INTO THE EASTERN PACIFIC EXPECT TRADES TO
WEAKEN A LITTLE BY THE WEEKEND AND EARLY NEXT WEEK.  GENERALLY
WINDWARD FOCUSED SHOWER ACTIVITY SHOULD BE IN THE LIGHTER HALF OF
THE SPECTRUM AS MOST GUIDANCE SHOWS PRECIPITABLE WATER VALUES
REMAINING WITHIN ONE STANDARD DEVIATION OF NORMAL MOST OF THE
TIME.  LOCALIZED POCKETS OF GREATER MOISTURE MAY EXIST NEAR THE
BIG ISLAND AT THE START OF THE PERIOD AND OVER OTHER LOCATIONS
LATE IN THE PERIOD.  ALOFT THE SHORTWAVE/COMPACT UPPER LOW THAT
RECENTLY CROSSED THE STATE WILL DRIFT GRADUALLY TO ABOUT 150W
TUESDAY-WEDNESDAY AND THEN SHEAR OUT TO THE EAST.  HIGHER HEIGHTS
WILL PREVAIL BEHIND THIS FEATURE BUT WITH A RELATIVE LACK OF
DEFINITION.

RAUSCH

$$





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