Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 805 AM EDT Sat Aug 05 2017 Valid 00Z Sun Aug 06 2017 - 00Z Sun Aug 13 2017 Model and ensemble guidance agrees well with the forecast for the upcoming week. Surface ridging of varying strength will persist north of the islands, helping to maintain trades through the period. Winds should slacken a bit during the first half of the week as a mid-latitude system briefly weakens the surface ridge, then become more brisk for Thursday-Saturday as high pressure rebuilds. Expect primarily windward focused shower activity to be on the light side as precipitable water values remain below climatology. Rausch