# HEADLINE
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FLOOD WATCH REMAINS IN EFFECT THROUGH LATE TONIGHT
# SUMMARY
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.A trough moving over the state is bringing abundant tropical moisture expected to last though this evening. Heavy rain and isolated thunderstorms are expected to produce flash flooding, and while the greatest flood threat will be focused over Oahu and Maui County, all islands are at risk.
# DETAILS
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WHAT
Flash flooding caused by excessive rainfall continues to be possible.
WHERE
All main Hawaiian Islands.
WHEN
Through late tonight.
IMPACTS
Significant flooding may occur due to the overflow of streams and drainages. Roads in several areas may be closed, along with property damage in urban or low lying spots due to runoff. Landslides may also occur in areas with steep terrain.
ADDITIONAL DETAILS
- Heavy showers and isolated thunderstorms with intense rain rates may develop at any time through tonight as a trough continues moving over the state. While the greatest flood threat will be focused over Oahu and Maui County, all islands are at risk.
ISSUED AT
Wednesday, October 28, 2026 at 2:56 AM HST
ISSUED BY
National Weather Service Honolulu HI
HEADER
Flood Watch
# PRECAUTIONARY/PREPAREDNESS ACTIONS
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You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
# AREAS AFFECTED
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Kahoolawe, Kauai East, Kona, Koolau Windward, Lanai Leeward, Molokai North, South Haleakala, Big Island East, Big Island Interior, Big Island North, Big Island South, Big Island Southeast, Big Island Summits, Central Oahu, East Honolulu, Ewa Plain, Haleakala Summit, Honolulu Metro, Kauai Mountains, Kauai North, Kauai South, Kauai Southwest, Kipahulu, Kohala, Koolau Leeward, Lanai Mauka, Lanai South, Lanai Windward, Maui Central Valley North, Maui Central Valley South, Maui Leeward West, Maui Windward West, Molokai Leeward South, Molokai Southeast, Molokai West, Molokai Windward, Niihau, Oahu North Shore, Olomana, South Maui/Upcountry, Waianae Coast, Waianae Mountains, Windward Haleakala