207
FXHW01 KWNH 140832
PMDHI
HAWAII EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
432 AM EDT SUN JUN 14 2026
VALID 00Z MON 15 JUN 2026 - 00Z MON 22 JUN 2026
AS A FRONTAL BOUNDARY TO THE NORTH WEAKENS, THE PRESSURE GRADIENT
ACROSS THE CENTRAL PACIFIC WILL TIGHTEN AND TRADE WINDS WILL
STRENGTHEN TO CLOSE OUT THE WEEKEND AND TO OPEN THE FIRST HALF OF
NEXT WEEK. THE REJUVENATED TRADE WIND REGIME WILL ALSO RE-
INTRODUCE ELEVATED PW ANOMALIES. LATEST GLOBAL GUIDANCE SHOWS ONE
WEAK TROUGH APPROACHING THE BIG ISLAND THAT MAY INTRODUCE ADDED
MOISTURE FLUX OVER THE ISLAND CHAIN AROUND MID-WEEK, WHILE
ANOTHER POTENTIALLY MORE POTENT DISTURBANCE PASSES TO THE SOUTH TO
CLOSE OUT NEXT WEEK. EXPECT DAILY EPISODES OF SHOWERS AND
OCCASIONAL THUNDERSTORMS OVER THE HIGHER TERRAIN OF THE ISLAND
CHAIN THROUGH THE FIRST HALF OF THE WEEK, INCLUDING LEEWARD AREAS
GIVEN THE STRENGTH OF THE TRADES EARLY IN THE WEEK. LIGHTER TRADE
WINDS, DRIER CONDITIONS, AND SLIGHTLY HOTTER TEMPERATURES
UNDERNEATH THE STRENGTHENING RIDGE ALOFT ARE ANTICIPATED FOR THE
SECOND HALF OF NEXT WEEK AND INTO NEXT WEEKEND.
MULLINAX
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