Aug 21, 2017
With an upper trough in the area acting on abundant low-level tropical moisture, heavy showers and thunderstorms developed from the Big Island to Kauai. Most of the rain caused ponding on roadways, and small stream and drainage ditch flooding. On Kauai, the soaking precipitation produced flash flooding as Kuhio Highway in Hanalei became impassable, and county officials were forced to close the Hanalei Bridge. There were no reports of significant property damage or injuries.
Source: NOAA National Weather Service Storm Events Database (event 711097). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Kauai County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.