Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
717 AM EST Sat Nov 17 2018

Valid 00Z Sun Nov 18 2018 - 00Z Sun Nov 25 2018

A frontal boundary sinking south of the Islands on Sunday will
keep showers and thunderstorms, with locally heavy rainfall
possible, in the forecast through the rest of the weekend. Expect
showers to be most numerous across windward locations of Maui and
the Big Island on Sunday and into Monday. Following this frontal
passage, surface high pressure builds in north of the state which
should keep trade winds breezy through much of the next week.
Models and ensembles indicate another cold front/upper level
trough may approach the islands from the west towards the end of
next week, resulting in increased precipitable water values and
precipitation chances.

Santorelli