Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 825 AM EDT Wed Oct 12 2016 Valid 00Z Thu Oct 13 2016 - 00Z Thu Oct 20 2016 Ensembles show good agreement on the upper high initially centered along 30N near the Dateline to drift eastward this week and then southeastward over Hawai'i by next week. Surface high will be reinforced from the northwest this weekend and push eastward past 150W next week. This should increase trades a bit for a period this weekend. Deep moisture will stay south of the area so a typical trade pattern will support generally light windward showers. A tropical wave may approach the region from the east next week on Tuesday or Wednesday. The ECMWF ensembles were a bit wetter than the GEFS members with generally higher precipitable water values. Fracasso