Severe · Flood WatchActive alert

Flood Watch issued September 7 at 3:12AM HST until September 8 at

Affecting Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Lanai Mauka; Kahoolawe; Maui Windward West; Maui Leeward West; Haleakala Summit; Kona; Kohala; Big Island Interior; Big Island Summit; East Honolulu; Honolulu Metro; Ewa Plain; Koolau Windward; Koolau Leeward; Molokai Windward; Molokai Southeast; Molokai North; Molokai West; Molokai Leeward South; Lanai Windward; Lanai Leeward; Lanai South; Maui Central Valley North; Maui Central Valley South; Windward Haleakala; Kipahulu; South Maui/Upcountry; South Haleakala; Big Island South; Big Island Southeast; Big Island East; Big Island North

In effect until: Sep 8, 2026, 3:15 AM

Waianae Coast; Oahu North Shore; Olomana; Central Oahu; Waianae Mountains; Lanai Mauka; Kahoolawe; Maui Windward West; Maui Leeward West; Haleakala Summit; Kona; Kohala; Big Island Interior; Big Island Summit; East Honolulu; Honolulu Metro; Ewa Plain; Koolau Windward; Koolau Leeward; Molokai Windward; Molokai Southeast; Molokai North; Molokai West; Molokai Leeward South; Lanai Windward; Lanai Leeward; Lanai South; Maui Central Valley North; Maui Central Valley South; Windward Haleakala; Kipahulu; South Maui/Upcountry; South Haleakala; Big Island South; Big Island Southeast; Big Island East; Big Island North

Possible impact zone; conditions develop through 3:15 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)

Moisture along the eastern flank of Hurricane Lowell will bring
periods of heavy rain to the main Hawaiian Islands through Tuesday.

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

* WHERE...Oahu, Maui County, Big Island

* WHEN...Through Tuesday 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...
- Moisture along the eastern flank of Hurricane Lowell will bring
periods of heavy rain to the main Hawaiian islands through
Tuesday.

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

Flood Watch issued September 7 at 3:12AM HST until September 8 at

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