Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 756 AM EDT Sun Apr 26 2015 Valid 00Z Mon Apr 27 2015 - 00Z Mon May 04 2015 Cold front currently over the NW islands will slowly but steadily sink through the rest of the island chain today and Monday. It should get hung up over the Big Island tomorrow and then dissipate as strong surface high pressure slides eastward along 35N the rest of the week. Troughing is forecast to pass by well to the north of the 50th state next weekend though heights will lower a bit over the region. This will promote rather strong trades owing to the gradient, with scattered windward showers. Ensembles forecast PW values to hover near to below climo values from about Tuesday onward and light to modest precipitation is expected, especially in windward favored areas. Fracasso