#NWS #flood #nwsflashflood #FlashFloodWarning Flash Flood Warning for Oahu in Honolulu, HI #HIwx At 331 PM HST, radar indicated diminishing rain over Oahu. Rain is now falling at a rate of 1 inch per hour or less. Significant rises have been observed on area streams including Waikane, Waiahole, and the Kaukonahua Stream at Wahiawa Dam and Waialua. Kamehameha Highway is closed at the Waikane Stream due to flooding. Finally, water is inundating Otake Camp which is now being evacuated due to additional water coming over the Wahiawa Reservoir spillway. Additional heavy showers will move over the island this evening. HAZARD...Heavy rain producing life threatening flash flooding. SOURCE...Emergency management. IMPACT...Significant and life threatening flooding in drainages, streams, rivers, roads, properties, and other low lying areas. Multiple public road closures expected, as well as landslides in steep terrain. Some locations that will experience flash flooding include... The island of Oahu.