Hawaii Extended Forecast Discussion NWS Weather Prediction Center College Park MD 821 AM EDT Sun Sep 07 2014 Valid 00Z Mon Sep 08 2014 - 00Z Mon Sep 15 2014 Still no change. The global numerical guidance continues to indicate that Hawai'i will be positioned between the intertropical convergence zone and the polar westerlies for at least a next week, with only patchy deep-layer moisture affecting the state. Due to the presence of a number of eddies in the flow both to the north and south of the island chain, the trades will average lighter than normal. Rainfall also looks on the modest side this period, with many locations receiving less than a tenth of an inch--if that--for the entire week. Most of the rainfall is progged to be on the western side of the Big Island. Cisco