Hurricane "Olivia," the 15th named storm of the 2018 Pacific hurricane season, is intensifying as it tracks toward Hawaii. Little change in strength is forecast through late Monday (HST), with gradual weakening possible starting sometime Tuesday, September 11. It is important to not focus on the exact forecast track and intensity when planning for Olivia, NHC said. Persons on all of the main Hawaiian Islands should continue preparing for the likelihood of direct impacts from this system Monday and early Tuesday, September 10 and 11. Those impacts could include intense flooding rainfall, damaging winds, large and dangerous surf, and storm surge.