Dangerous, hurricane-force winds were expected to hit the Big Island overnight and slam Maui Thursday afternoon, the National Weather Service said. To the north, Oahu was under a hurricane warning while Kauai remained on hurricane watch meaning it could face such conditions starting Friday morning.

"Preparations to protect life and property should be rushed to completion," the center said. "Life threatening impacts are likely in some areas as the hurricane makes its closest approach."

Governor David Ige urged residents to prepare for the worst by setting aside a 14-day supply of water, food and medicines in the event of major damage to roads and infrastructure.