Severe · Flood WatchActive alert

Flood Watch issued September 9 at 3:17AM HST until September 9 at

Affecting Kona; Kohala; Big Island Interior; Big Island Summit; Big Island South; Big Island Southeast; Big Island East; Big Island North

In effect until: Sep 10, 2026, 4:00 AM

Kona; Kohala; Big Island Interior; Big Island Summit; Big Island South; Big Island Southeast; Big Island East; Big Island North

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)

A band of deeper moisture over the Big Island could produce heavy
showers through this afternoon that may lead to flooding.

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

* WHERE...The Big Island.

* 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...
- A band of deeper moisture over the Big Island could produce heavy
showers through this afternoon that may lead to flooding.

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

Flood Watch issued September 9 at 3:17AM HST until September 9 at

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