Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
321 AM EDT Sat Oct 30 2021

Valid 00Z Sun Oct 31 2021 - 00Z Sun Nov 07 2021

A relatively dry and stable pattern is forecast over Hawaii
through this weekend into next week. Model guidance agrees that
light winds are expected aloft over Hawaii, while a couple of
upper-level troughs and surface low pressure systems traverse
eastward well to the north of the state (around 40-45N latitude)
through early next week. This pattern will disturb typical
easterly trade winds and produce light and variable winds instead,
generally dominated by daytime sea breezes and nighttime land
breezes. Moisture levels should remain at or somewhat below
normal, and any fronts are expected to stall and dissipate north
of the islands, so any rain showers will be focused over interior
areas where sea breezes set up. More typical easterly trades are
expected from midweek onward as surface high pressure builds in
north of the state, leading to showers for windward-facing
terrain. Early indications show an increase in moisture may occur
by next Friday and Saturday, which we will continue to monitor.

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