Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 726 AM EST Tue Jan 02 2018 Valid 00Z Wed Jan 03 2018 - 00Z Wed Jan 10 2018 Guidance reasonably agrees in maintaining 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 over the weekend over the Big Island and vicinity as impulse energy digs overtop on the eastern periphery of the mid-upper level ridge. Schichtel