


Prognostic Meteorological Discussion
Issued by NWS
Issued by NWS
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540 FXHW01 KWNH 300725 PMDHI Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 325 AM EDT Mon Jun 30 2025 Valid 00Z Tue 01 Jul 2025 - 00Z Tue 08 Jul 2025 Guidance overall agrees that a mean upper trough position blocked just to the northwest of the islands by upper ridging is acting to veer light to moderate island trades along with only a modest increase in moisture and showers as deep moisture holds offshore. Trades may become moderate to locally breezy mid-late week and continue to slowly strengthen into the weekend as high pressure bridges to the north of the state, but moisture remains limited. Schichtel $$