Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 708 AM EST Sat Feb 13 2016 Valid 00Z Sun Feb 14 2016 - 00Z Sun Feb 21 2016 Latest guidance continues to show good agreement with the forecast of significant features for the next week. From Sat into Sun the state will be between the southwestern periphery of strong eastern Pacific high pressure and a front approaching from the northwest, leading to easterly winds near the Big Island and southeasterly winds elsewhere. The approaching front should weaken as it passes through during the first half of the week. An associated band of moisture with precipitable water values in the 1.00 to slightly greater than 1.25 inch range will likely help to provide some increase in rainfall. Meanwhile high pressure building in well northwest of the islands will support strong northeasterly winds that will provide some terrain enhancement of rainfall as well. There should be a drier trend by the latter half of the week as northwesterly flow aloft pushes an axis of sheared mid level energy and leading moisture southward. Perhaps related to subtle differences aloft by Thu-Sat, latest ECMWF runs do not bring PWATs quite as low as the 00z/06z GFS. Winds will trend somewhat lighter during Thu-Sat as the high to the northwest of the area steadily weakens. Rausch