Radar from the National Weather Service shows bands of heavy rain over the Hawaiian Islands. 

A slow-moving storm is battering Hawaii with heavy rain, flash flooding and damaging winds, knocking out power for more than 100,000 Hawaiian Electric customers, including parts of Waikiki. Some streets are also underwater.On Friday, flooding concerns intensified on Oahu when the city Department of Emergency Management warned that a dam could fail, potentially resulting in “catastrophic flooding,” according to its emergency alert. The dam was nearing 83 feet, while the maximum level........

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