029
FXHW01 KWNH 210717
PMDHI

Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
317 AM EDT Thu Aug 21 2025

Valid 00Z Fri 22 Aug 2025 - 00Z Fri 29 Aug 2025

A typical trade wind pattern, moderately breezy at times, will
prevail with upper ridging over Hawaii for the next week. By early
to mid next week, troughing may creep into the northernmost
islands but any associated precipitation should stay north. The
trough should retreat back north with upper ridging again
expanding across the state by later next week. The overall pattern
supports a typical summertime pattern over Hawaii with drier
conditions and not much in the way of rainfall except for typical
windward and mauka areas. Guidance shows good agreement on the
overall setup through the period.

Santorelli


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