Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 821 AM EDT Sun Aug 03 2014 Valid 00Z Mon Aug 04 2014 - 00Z Mon Aug 11 2014 The 3/00Z ECENS-GEFS means and their deterministic runs were in very good agreement through day 5 with many of the features related to Hawai'i and the north central Pacific. Looks to become an active weather period--Thursday night through Friday---with an influx of tropical moisture drawn by 'Iselle' spreading across the entire island chain from east to west. The ECMWF/GFS deterministic runs closely follow the official NHC track forecast for 'Iselle'. A second disturbance, lagging behind 'Iselle', remains a consistent feature of the medium range forecast, with the deterministic 3/00Z GFS-ECMWF maintaining a consistent track---reaching 146W around mid-point day 6 (~9/12Z). The leading edge of its tropical moisture spreads across the island from east to west between 10/12Z and 11/12Z. For additional information, please consult/refer to the latest updates and bulletins from the Central Pacific Hurricane Center and National Hurricane Center. Vojtesak