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FXHW01 KWNH 050731

PMDHI 



Hawaii Extended Forecast Discussion

NWS Weather Prediction Center College Park MD

330 AM EDT Sun May 05 2024



Valid 00Z Mon May 06 2024 - 00Z Mon May 13 2024



Latest guidance agrees that potent surface high pressure built to

the north of Hawaii will favor breezy to locally strong island

trades through early this week. Meanwhile model guidance also

shows a mid-upper trough/low working near the state. Expect some

instability for increased showers, which would favor windward and

mauka areas given trade flow. Slightly above average moisture

anomalies may peak around Monday-Tuesday. Rainfall totals do not

appear to be significantly high. Trades may decrease through the

rest of the week as the supporting high weakens with onset of

mid-latitude upper troughing/height falls and surface frontal

approach, but will less certainty rebound next weekend with

rebuilding of post-frontal high pressure to the north of the

state.



Schichtel



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