342
FXHW01 KWNH 290756
PMDHI
HAWAII EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
356 AM EDT SAT APR 29 2023
VALID 00Z SUN APR 30 2023 - 00Z SUN MAY 07 2023
A FAVORED COMPOSITE OF WELL CLUSTERED MODEL GUIDANCE HAS BROAD
ENSEMBLE SUPPORT OVERALL IN A PATTERN WITH AVERAGE TO ABOVE
AVERAGE PREDICTABILITY. DESPITE A STALLING BOUNDARY LINGERING IN
THE VICINITY, RAIN CHANCES HAVE TRENDED DOWNWARD FOR THE REST OF
THE WEEKEND, WITH ONLY LIGHT SHOWERS ANTICIPATED. NEXT WEEK WILL
SEE A RETURN TO A PATTERN FEATURING MODERATE TRADES AS HIGH
PRESSURE BRIDGES TO THE NORTH THEN NORTHEAST OF THE STATE.
SOUTHEASTWARD DIGGING OF AN UPPER-LEVEL TROUGH AND SURFACE FRONT
FROM THE WEST-CENTRAL PACIFIC MID-LATITUDES ARE FORECAST TO OCCUR
TO THE WEST. SUBSEQUENT HIGHER PRECIPITATION CHANCES NEARBY MAY
DRIFT EASTWARD ENOUGH TO BRING SHOWERS TO KAUAI AND OAHU BY
TUESDAY-WEDNESDAY WITH A BRIEF DISRUPTION TO THE TRADES. THE
ASSOCIATED SURFACE TROUGHING/FRONTAL BOUNDARY TO THE NORTHWEST ARE
FORECAST TO WEAKEN/DISSIPATE BY LATE WEEK WITH BROAD HIGH PRESSURE
REMAINING IN PLACE TO THE NORTH AND MODERATE TRADES CONTINUING
OVER THE ISLANDS.
PUTNAM
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