Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
413 AM EST Wed Jan 7 2026

Valid 00Z Thu 08 Jan 2026 - 00Z Thu 15 Jan 2026

Trades will be weakening early in the forecast period as the high
to the northeast of the Island...initially near approximately 38N
146W...pushes east and a weak frontal boundary approaches the
Island from the north. PW values should remain generally above
average through Fri from a combination of the remnant moisture
from the recent Kona low and moisture along the above mentioned
weak frontal boundary pressing southward just north of the Island
late week into this weekend.

This weak front will dissipate Sat with continued weaker than
average trades. A stronger front will push southeast across the
Islands, except for the Big Island, Mon into early Tue in
response to an amplifying mid to upper level trof north of Hawaii
across the central Pacific. Enhanced frontal precip possible along
and ahead of this front late Mon into Tue.

Trades should strengthen in the wake of this stronger front Tue
and then veer to a more east southeasterly direction Wed as yet
another upstream front pushes southeast across the central Pac.

Oravec