The Coast Guard was conducting search and rescue efforts for residents whose homes may have been washed away by the floods, Hawaii's governor said.

The city has issued an evacuation order for the Waialua and Haleiwa areas due to “extremely dangerous flooding” and rising water levels at the Wahiawa Dam.

: 11:10 a.m. All of Oahu is now covered by the National Weather Service’s updated flash flood warning until 2 p.m. today, and a flash flood emergency is ongoing for northern areas of the

Muddy floodwaters smothered vast stretches of Oʻahu's North Shore on Friday, lifting homes and cars and prompting evacuation orders for 5,500 people. Meanwhile, authorities were cautioning that a 120-year-old dam upstream in Central Oʻahu could fail.

With Hawaii’s regulated dams tested by back-to-back storms, officials said Friday they continue to function as intended though some came close to overtopping.

Honolulu emergency officials warned residents Friday morning that failure of the Wahiawā Dam was imminent, putting up to 2,500 lives in jeopardy as people were already evacuating

Amid massive flooding concentrated on Oahu’s North Shore Friday, a warning of potentially deadly catastrophic danger went out in the morning over concern that the Wahiawa Dam might fail.