Severe · Flood WatchActive alert

Flood Watch issued October 8 at 1:42AM HST until October 8 at

Affecting Niihau; Kauai Southwest; Kauai Mountains; Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Kauai North; Kauai East; Kauai South; East Honolulu; Honolulu Metro; Ewa Plain; Koolau Windward; Koolau Leeward

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

Niihau; Kauai Southwest; Kauai Mountains; Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Kauai North; Kauai East; Kauai South; East Honolulu; Honolulu Metro; Ewa Plain; Koolau Windward; Koolau Leeward

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.

See it on the live map View official source

Read the original bulletin (official text)

A deepening area of low pressure north of the Hawaiian Islands will
draw deep tropical moisture northward, resulting in a threat for
heavy rain over Kauai and Oahu today.

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...Oahu, 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...
- Heavy showers and isolated thunderstorms will continue through
today as deep tropical moisture is drawn northward over the
state. Training of heavy showers containing intense rain rates
will be possible.

Free. In your language.

Get the next alert for your area before it matters.

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

Flood Watch issued October 8 at 1:42AM HST until October 8 at

Get the next alert for your area before it matters.

Get alerts in your language