138
FXHW01 KWNH 300800
PMDHI
HAWAII EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
359 AM EDT SUN APR 30 2023
VALID 00Z MON MAY 01 2023 - 00Z MON MAY 08 2023
A FAVORED COMPOSITE BLEND OF THE MODEL GUIDANCE HAS GOOD ENSEMBLE
SUPPORT OVERALL IN A PATTERN WITH AVERAGE TO ABOVE AVERAGE
PREDICTABILITY. NEXT WEEK WILL SEE A RETURN TO A PATTERN FEATURING
MODERATE TRADES OVERALL 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 EARLY IN THE
FORECAST PERIOD, BRINGING A BRIEF DISRUPTION TO THE PATTERN.
SUBSEQUENT HIGHER PRECIPITATION CHANCES NEARBY LOOK TO DRIFT
EASTWARD ENOUGH TO BRING SHOWERS TO KAUAI AND OAHU
TUESDAY-WEDNESDAY. MODEL TRENDS WILL NEED TO BE MONITORED AS SOME
OF THE GUIDANCE SHOWS THE CHANCE FOR HEAVIER, MORE PROLONGED
RAINFALL EFFECTING MORE OF THE ISLANDS. 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, BREEZY TRADES CONTINUING OVER
THE ISLANDS.
PUTNAM
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