Severe Future Possible Flood Watch Flood Watch issued September 16 at 4:03PM HST until September 18 at 6:00AM HST by NWS Honolulu HI Sep 16, 6:00 PM → Sep 18, 6:00 AM Remnant moisture from former Tropical Storm Norbert will bringperiods of moderate to heavy showers to the Hawaiian Islands tonightthrough Friday morning. WHAT: Flash flooding caused by excessive rainfall is possible. WHERE: All main Hawaiian Islands. WHEN: Through late Thursday night. IMPACTS: Flood prone roads and other low lying areas may be closeddue to elevated runoff and overflowing streams. Urban areas mayreceive more significant flooding and property damage due to rapidrunoff. ADDITIONAL DETAILS: - A band of remnant moisture from Norbert will move east across theislands tonight into Friday, bringing moderate to locally heavyshowers. There is a slight chance of thunderstorms on Thursday aswell, which could produce briefly higher rain rates, increasingthe risk of flash flooding. + Read More You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. Updated: Sep 16, 7:10 PM Source: NWS Alert