Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 805 AM EDT Mon Aug 03 2015 Valid 00Z Tue Aug 04 2015 - 00Z Tue Aug 11 2015 Hurricane Guillermo will be the dominant focus this forecast period. Expect Guillermo to weaken to tropical storm status soon and then continue to weaken gradually as it heads toward the islands over the next couple days. Wed-Thu is the primary time frame in which the area should experience any enhanced winds/rainfall. Based on the 0900 UTC forecast from the Central Pacific Hurricane Center (CPHC), Guillermo should track just north of the islands likely keeping heaviest rainfall to the north as well. Still the potential exists for heavy rainfall at some locations and only a slight change in track could yield significantly greater impacts. Consult latest CPHC products for complete information regarding Guillermo. With the passage of Guillermo, surface high pressure to the northeast/north of the state along 35-40N latitude will bring moderate to brisk trades from Fri into early next week. Windward focused rainfall should generally be light to locally moderate. Aside from typical detail differences that have low predictability, models and ensemble means show good agreement with the overall pattern at the surface and aloft Fri-Mon. Rausch