The tropical cyclone is expected to track "dangerously" close to Hawaii’s islands, with residents bracing for “life threatening” weather conditions, including strong winds and flooding.
In preparation for the Category 4 storm, many residents have been stockpiling food, water and other supplies.
Schools have been closed and public sector jobs have been suspended.
After Donald Trump issued a presidential disaster declaration on Wednesday, Hawaii Governor David Ige tweeted: “Never seen such dramatic changes in forecast track as with Hurricane Lane. Urging residents to prepare for a significant impact."
The US National Weather Service has issued a hurricane warning for Hawaii's Big Island and a hurricane watch for Oahu, Maui, Molokai and Lanai.
It also said the storm could bring “damaging winds and life-threatening flash flooding”.
With sustained winds of 155 mph as it approaches the islands from the southwest, officials say Hurricane Lane is still close to a Category 5 storm.
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