Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 811 AM EDT Mon Jun 20 2016 Valid 00Z Tue Jun 21 2016 - 00Z Tue Jun 28 2016 A strong upper high to the north of the state near 40N/160W will strengthen over the next couple of days before weakening and shifting westward later in the week into next weekend. This will allow increased troughing to slide into the region from the northeast and should support periods of generally light rain this week with increased coverage and amounts by next weekend. Latest GFS and ECMWF runs were a bit lower with the upper heights than their ensemble means but offer reasonable solutions. Fracasso