From t County of Hawaii Civil Defense:
The National Weather Service has issued a Flash Flood Warning for Hawaii Island effective through 12:30PM this afternoon. Heavy rain fall is expected in various areas of West Hawaii from South Kona through North Kohala. Many of these areas have experienced significant rainfall over the past days and may be prone to flooding.
Due to heavy runoff and flooding, Highway 11 near the Whittington Beach Park in Kau is closed to all traffic. The road closure extends from Punaluu to Naalehu. Motorists are advised to avoid the area and to use alternate routes if possible. All other major highways and roadways are open at this time, however motorists are advised to drive carefully and to be prepared for hazardous conditions to include ponding and runoff, and to anticipate traffic delays.
The Flash Flood Watch for Hawaii Island remains in effect. Due to unstable weather conditions and very moist air across the state, the flash flood watch will remain in effect through 6:00 p.m. tonight.