Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 824 AM EDT Tue Jun 19 2018 Valid 00Z Wed Jun 20 2018 - 00Z Wed Jun 27 2018 Latest guidance is fairly consistent and agreeable with the forecast through early next week over the Hawaii domain. Through Thursday of this week the trades will be on the light side as a weakening front to the north approaches and weakens the surface pressure gradient. The weak trades will allow for some land and sea breezes. An axis of higher precipitable water values associated with the weakening front will reach the state, but the highest PWs are expected to remain south of the state in the Doldrums. A more typical trade regime with windward shower focus will become established by the latter half of the week. Behind a front passing through the mid-latitudes of the central Pacific late in the week, strong high pressure will build across the eastern half of the Pacific. This high will bring trades up to moderate-brisk levels for the weekend and into early next week. The combination of stronger trades and an upper level weakness/low approaching from the east may provide at least modest rainfall enhancement over the Big Island in the latter part of the period. Finer details of this possible upper feature have low predictability at the days 5-7 time frame but most solutions are fairly similar with the timing/strength through next Tuesday. D. Hamrick