"Preparations to protect life and property should be rushed to completion", the service added.
But Central Pacific Hurricane Center forecasters warned that a greater degree of uncertainty lies in Lane's path at that point, and the western end of the Hawaiian archipelago remained quite vulnerable.
Still, the hardiest of Hawaiian residents are keeping a sense of humor while they wait out the storm's approach...
The storm was in the Pacific about 235 miles south-southwest of the Big Island town of Kailua-Kona early Thursday.
State Governor David Ige said Big Island, already battered by the destructive force of the Kilaeau volcano, is already starting to feel Lane's first effects.
Officials opened shelters on the Big Island and on the islands of Maui, Molokai and Lanai on Wednesday.
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The shelves of a downtown Honolulu Walmart were stripped of items ranging from canned tuna to dog food as well as bottled water and coolers full of ice after warnings of possible power outages.
This is only the second major storm to come within 350 miles of those islands, the last was John back in 1994.
Locals in Hawaii are stocking up on water and petrol, with long queues reported at petrol stations in the state's capital Honolulu. "We have about nine cases of water because we're having family stay with us as well, so one case per person".
President Trump declared a state of emergency on Wednesday as meteorologists predict heavy rain may cause flooding, down trees and cut power as the slow-moving storm unleashes it's power Thursday and Friday.
"The approval of the Presidential Disaster Declaration means that Hawai'i will have quick and efficient access to federal resources in the wake of Hurricane Lane, as our communities and residents recover from any damage and losses caused by the storm".
It's not a good sign when the U.S. Navy orders all ships to leave port.
Hurricane Lane unleashed torrential rain on Hawaii Thursday morning, raising the threat of flash floods and landslides, as the strong Category 4 storm churned north toward the islands. A government report on that storm recorded six people dead and more than 100 injured.