Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 823 AM EDT Mon Jun 13 2016 Valid 00Z Tue Jun 14 2016 - 00Z Tue Jun 21 2016 Models show good agreement in sustaining the large and strong upper high/upper trough couplet northeast of the islands through the week, thus contributing to a strong and expansive region of high pressure and therefore strong trades. The trades may weaken by next weekend however, as the couplet weakens and lifts northward, favoring a weak inverted trough to form near the islands. Models are similar in the timing and strength of the weakening pattern. Precipitation will remain scattered through the week while favoring the windward areas. James