Hawaii Under Flood Watch as Heavy Rains Threaten Islands Again

The entire state is under a flood watch as another large storm system moves in, the fourth such storm in the past month.

Apr. 12, 2026 at 7:05pm

A sweeping, atmospheric landscape painting in muted tones of gray, blue, and green, with a dramatic, stormy sky dominating the frame and obscuring any distinct physical structures or landmarks below.As another major storm system threatens to unleash torrential rains and flash flooding across the Hawaiian islands, the region's vulnerable landscape braces for the overwhelming power of nature.Kahuku Today

The National Weather Service has issued a flood watch for the entire state of Hawaii, warning that heavy rains and shower activity are expected to move across the islands early this morning and persist for several hours, potentially accumulating several inches of rainfall. With the ground already saturated from last week's storm, the risk of flash flooding is high. Several emergency shelters remain open across Oahu, and city officials have closed various facilities and parks as a precaution.

Why it matters

Hawaii has been battered by a series of intense storm systems in recent weeks, leading to widespread flooding, power outages, and damage. This latest storm system threatens to exacerbate an already dire situation, with the potential for more flash flooding, road closures, and disruptions to daily life across the islands.

The details

The National Weather Service predicts that the heaviest band of showers will develop over Oahu and potentially much of Molokai, though the band may also anchor over the Kaiwi Channel between the two islands. Showers are expected to persist for numerous hours, potentially accumulating several inches of rain. With the ground already saturated from last week's storm, the risk of flash flooding is high. Six emergency shelters remain open across Oahu, and city officials have closed various facilities and parks as a precaution.

  • The flood watch is in effect today through 6 p.m. Monday.
  • The heaviest band of showers is expected to develop early this morning.
  • Shelters will remain open through at least Tuesday.
  • Hanauma Bay Nature Preserve is expected to reopen on Wednesday, conditions permitting.

The players

National Weather Service

The federal agency responsible for weather forecasting and issuing warnings.

City and County of Honolulu

The local government responsible for managing emergency response and public services in Honolulu.

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What’s next

The city's call center will remain open from 8 a.m. to 10 p.m. today to assist residents and visitors with information on storm recovery and response. Residents are encouraged to sign up for HNL Alert to receive updates on road closures, city services, and recovery resources.

The takeaway

This latest storm system threatens to exacerbate an already difficult situation in Hawaii, with the potential for more flash flooding, road closures, and disruptions to daily life. The repeated battering of intense storms has highlighted the need for improved infrastructure and emergency preparedness to protect the islands and their residents.