Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 335 AM EDT Wed Sep 02 2020 Valid 00Z Thu Sep 03 2020 - 00Z Thu Sep 10 2020 The model guidance agreement during the course of the medium range period remains average to above average and features high pressure north of Hawaii strengthening somewhat into this weekend. This should allow for an increase to the trade winds this weekend into early next week. Shower activity will favor windward areas. By early to mid next week, easterly trade flow is well established and overall no significant rainfall is expected at this time. Taylor