9/25/2025 3:16:00 PM until 9/26/2025 5:30:00 AM

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

FLOOD WATCH FOR KAUAI AND NIIHAU... * WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Niihau and Kauai. * WHEN...Through Friday afternoon. * IMPACTS...Flood prone roads and other low lying areas may be closed due to elevated runoff and overflowing streams. Urban areas may receive more significant flooding and property damage due to rapid runoff. * ADDITIONAL DETAILS... - A surface trough over the Kauai Channel and bring widespread showers to Kauai and Niihau before tracking west. An approaching upper low will destabilize the atmosphere across this area and bring the potential for shower enhancement along with isolated thunderstorms that will continue through the day Friday. Heavy rain lingering over the same areas on Kauai and Niihau may result in flash flooding.