Severe · Flood WatchActive alert

Flood Watch issued September 8 at 3:28AM HST until September 8 at

Affecting Niihau; Kauai Southwest; Kauai Mountains; Kauai North; Kauai East; Kauai South

In effect until: Sep 9, 2026, 4:00 AM

Niihau; Kauai Southwest; Kauai Mountains; Kauai North; Kauai East; Kauai South

Possible impact zone; conditions develop through 4:00 AM.

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

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Read the original bulletin (official text)

Trailing moisture along the eastern flank of Hurricane Lowell will
bring periods of heavy rain to the main Hawaiian Islands through this
afternoon.

* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.

* WHERE...Kauai and Niihau.

* WHEN...Through this 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...
- Trailing moisture associated with Hurricane Lowell will bring
periods of heavy rain to Kauai and Niihau through this afternoon
where significant rainfall has already fallen. These periods of
heavy rain can quickly lead to additional flash flooding.

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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™

Flood Watch issued September 8 at 3:28AM HST until September 8 at

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