390
FXHW01 KWNH 220727
PMDHI

Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
227 AM EST Sat Nov 22 2025

Valid 00Z Sun 23 Nov 2025 - 00Z Sun 30 Nov 2025

The main surface high is expected to be positioned northeast of
Hawaii going into the weekend, with mainly easterly trade wind
flow expected that will initially be breezy, and then winds
generally become lighter by Sunday as the pressure gradient
lessens as a col develops in the subtropical high. There will
likely be a weak inverted surface trough near the state through
the weekend, with perhaps some areas of enhanced shower activity
based on the latest model guidance, which is generally in good
agreement on this overall scenario.

Looking ahead to next week, a relatively strong cold front
approaches from the northwest and may affect the western Islands
with some increase in shower activity, but not as heavy when
compared to yesterday`s model guidance. Otherwise, mainly trade
wind showers can be expected most days for the favored terrain.

Hamrick

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