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Over 5,500 told to evacuate flooding in Hawaii as officials warn 120-year-old dam could fail

More than 4,000 residents were ordered to evacuate due to heavy rains pushing the nearly 120-year-old Wahiawa Dam beyond critical levels, risking life-threatening flash flooding downstream.

  • On Monday, a surprise "rain bomb" dumped 6 inches of rain per hour on Manoa Valley, east of downtown Honolulu, sweeping away parked cars and flooding neighborhoods. Honolulu Mayor Rick Blangiardi called it "classic rain bomb," noting skies were sunny earlier that day.
  • This deluge marks the latest incident in a series of storms pummeling Hawaii over the past two weeks. Residents along Oahu's North Shore were cleaning up from the worst flooding to hit the state in two decades when Monday's storm struck.
  • Gov. Josh Green estimated the storm toll could top $1 billion, including damage to airports, schools, roads, homes and a Maui hospital in Kula. He submitted a major disaster declaration request to the Trump administration on Tuesday.
  • Evacuation orders covered 5,500 people north of Honolulu, with some residents fleeing on surfboards as water reached waist or chest high. Molly Pierce, a spokesperson for the Oahu Emergency Management Agency, called the system "extremely unusual."
  • Forecaster Cole Evans noted that lingering instability from the "Kona low" system could yield more rain, though it should not pose further risks of Monday-level bursts. Agriculture Stewardship Hawaii reported farms across the state suffered more than $17 million in damages.
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Center

Hawaii digs out from another round of flooding after a surprise downpour, in photos

Crews on Tuesday began evaluating damage from a surprise downpour that sent floodwaters raging through a neighborhood near downtown Honolulu — the latest bout in a series of storms and flooding that have pummeled the state over the past two…

Center

More than 2,000 people were still without power Sunday afternoon after Hawaii suffered its worst flooding in more than 20 years, as heavy rains lashed the islands.

·Pennsylvania, United States
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Right

Historic Hawaii Floods Leave 2K People Without Power

·Washington, United States
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Spectrum Local News broke the news in United States on Friday, March 20, 2026.
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