Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
817 AM EDT Fri Jun 30 2017

Valid 00Z Sat Jul 01 2017 - 00Z Sat Jul 08 2017

It remains the case that a favored composite of reasonably well
clustered models and ensembles continue to show an upper trough
moving westward today into next week just north/over Hawai'i as an
upper high develops to the north and northwest of the region. Just
prior to the upper trough's approach, a surge in precipitable
water is swinging through the area from the northeast. The upper
trough itself will maintain elevated PW values well into next
week. In this pattern, expect some light to modest rains as
enhanced over windward terrain by trade flow that increases after
the weekend as surface high pressure builds to the north of the
state.

Schichtel