PacIOOS’ Regional Ocean Modeling System (ROMS) provides a 7-day, 3-hourly forecast for the region surrounding the southern half of the island of Oʻahu and parts of adjacent Penguin Bank offshore of Molokaʻi in the State of Hawaiʻi at approximately 1-km (0.6-mile) resolution. Outputs a current forecast, temperature forecast, and salinity forecast.