


Prognostic Meteorological Discussion
Issued by NWS
Issued by NWS
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959 FXHW01 KWNH 170734 PMDHI Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 334 AM EDT Sun Aug 17 2025 Valid 00Z Mon 18 Aug 2025 - 00Z Mon 25 Aug 2025 A typical trade wind pattern, moderately breezy at times, will prevail with upper ridging over/north of Hawaii. The guidance shows good agreement on this set up which looks to hold for at least the next week. Generally, drier than normal moisture values are expected, with not much in the way of rainfall over the next week except for the typical windward and mauka areas. Santorelli $$