Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 807 AM EDT Sat Jul 07 2018 Valid 00Z Sun Jul 08 2018 - 00Z Sun Jul 15 2018 A very broad mid/upper-level weakness is forecast by all guidance to traverse Hawaii from east to west through Tue. Surface high pressure will remain anchored across the north central Pacific, well north of the state, keeping 15-25 kt trades in place across Hawaii through the next week. The aforementioned weakness should result in a slight enhancement to typical windward shower activity, especially over the eastern islands. By the middle of next week, a slightly drier air mass should overspread the state as upper-level ridging builds overhead, reducing shower activity a bit. Ryan