Hawaii Extended Forecast Discussion
NWS Weather Prediction Center College Park MD
728 AM EST Wed Jan 03 2018

Valid 00Z Thu Jan 04 2018 - 00Z Thu Jan 11 2018

Latest models and ensembles reasonably agree to maintain a
relatively benign weather pattern for the Hawaiian islands for the
next week as deep layered high pressure tends to hold over the
state. Moderate mean trade flow offers below normal moisture and
limited windward rainfall potential, albeit with the best chance
to squeeze out moisture possibly occurring by the weekend for the
Big Island and vicinity as impulse energy digs overtop on the
eastern periphery of the mid-upper level ridge. There is however a
reasonably good pattern transition signal for approach of frontal
showers toward the western islands in about a week as a mid-upper
level trough amplifies and passes just to the north of the
islands.

Schichtel