Prognostic Meteorological Discussion
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059
FXHW01 KWNH 230707
PMDHI

Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
307 AM EDT Sat Aug 23 2025

Valid 00Z Sun 24 Aug 2025 - 00Z Sun 31 Aug 2025

A typical trade wind pattern, moderately breezy at times, will
prevail with upper ridging waxing and waning near Hawaii for the
next week. Upper troughing digs into the Papahanaumokuakea Marine
National Monument Sunday and Monday before ridging builds back in
aloft to the northwest. While a couple easterly waves are noted
over the next couple of days that could brush by the Island of
Hawai`i, the ITCZ remains safely south of the main Hawaiian
Islands. The overall pattern supports a typical pattern 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.

Roth

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