145
FXHW01 KWNH 010740
PMDHI
HAWAII EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
339 AM EDT SAT JUL 01 2023
VALID 00Z SUN JUL 02 2023 - 00Z SUN JUL 09 2023
LATEST MODELS AND MEANS CONTINUE TO SHOW SIMILAR IDEAS FOR THE
PATTERN THROUGH THE END OF NEXT WEEK. TRADES OF VARYING STRENGTH
WILL PREVAIL DURING THE FORECAST PERIOD, FOCUSING SHOWERS OVER
WINDWARD/MOUNTAIN AREAS, WHILE BELOW AVERAGE PRECIPITABLE WATER
VALUES WILL LIKELY KEEP MOST RAINFALL TOTALS ON THE LIGHTER SIDE.
THE COMBINATION OF A WEAK WAVE PASSING THROUGH AND A SLIGHT BREAK
IN SURFACE RIDGING NORTH OF THE STATE SHOULD LEAD TO MODERATE
TRADES THROUGH THE WEEKEND. THEN EASTERN PACIFIC HIGH PRESSURE
WILL BUILD SOUTHWESTWARD AND STRENGTHEN THE TRADES SOMEWHAT
EARLY-MID WEEK OR SO. THE HIGH SHOULD WEAKEN A LITTLE BY THE END
OF THE WEEK, PERHAPS LOWERING WIND SPEEDS SLIGHTLY. AS FOR FLOW
ALOFT, GUIDANCE IS A LITTLE MORE AGREEABLE NOW IN SHOWING A
WEAKNESS OVER THE ISLANDS THIS WEEKEND INTO MONDAY BRIDGING
SEPARATE AREAS OF LOWER HEIGHTS TO THE WEST AND EAST, FOLLOWED BY
A NORTHWARD SHIFT OF THIS WEAKNESS AS RIDGING NUDGES IN FROM THE
SOUTH. THERE IS STILL SOME SPREAD FOR SPECIFICS ALOFT BY NEXT
FRIDAY-SATURDAY THOUGH.
RAUSCH
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