872
FXHW01 KWNH 010728
PMDHI
HAWAII EXTENDED FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
227 AM EST SAT MAR 1 2025
VALID 00Z SUN MAR 2 2025 - 00Z SUN MAR 9 2025
THE SURFACE HIGH THAT WILL INITIALLY BE IN PLACE NORTHEAST OF
HAWAII SATURDAY WILL REDUCE ITS INFLUENCE ACROSS THE STATE GOING
INTO SUNDAY AS A COL DEVELOPS WITHIN THE SUBTROPICAL RIDGE AXIS.
A FRONTAL BOUNDARY APPEARS LIKELY TO CROSS THE NORTHWESTERN
ISLANDS EARLY IN THE WEEK, WITH THE SURFACE HIGH BUILDING NORTH OF
THE STATE NEAR 30 DEGREES NORTH. THE CORE OF THIS HIGH MAKES
STEADY EASTWARD PROGRESS THROUGH THE WEEK, WITH ANOTHER COL IN THE
RIDGE DEVELOPING NORTH OF THE STATE FOR THE END OF THE WEEK.
THERE IS GOOD OVERALL AGREEMENT IN THE ENSEMBLE MEANS REGARDING
THE SYNOPTIC SCALE PATTERN THROUGH THE FORECAST PERIOD.
THE MODEL GUIDANCE SUGGESTS THE HEAVIEST RAINFALL WITH THE COLD
FRONT MONDAY SHOULD STAY WELL NORTH OF THE ISLANDS, WITH MAINLY
TRADE WIND ENHANCED SHOWERS EXPECTED MOST DAYS AND NO MAJOR
RAINFALL EVENTS ON THE HORIZON. IN TERMS OF WINDS, MAINLY ESE
FLOW CAN BE EXPECTED THIS WEEKEND, FOLLOWED BY STRONGER EASTERLY
FLOW FOR THE FIRST HALF OF NEXT WEEK WITH THE HIGH BUILDING IN TO
THE NORTH. THIS ALSO HOLDS TRUE GOING INTO THE END OF THE WEEK,
ALTHOUGH THERE MAY BE SOME VEERING TO THE SOUTHEAST DEPENDING ON
THE TIMING AND EVOLUTION OF THE NEXT TROUGH/COL.
HAMRICK
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