A high surf warning has been issued for east-facing shores of Hawaii Island for 12-13 foot waves.
Big Island officials are taking precautions in advance of the storm nearing the state.
The County of Hawai'i reports that the county is preparing for the arrival of Hurricane Hector in the Central Pacific region later this week.
Hurricane Hector regained strength in the eastern Pacific late on Sunday and swelled into a Category 4 storm again with sustained 140 miles per hour winds as it stayed on target to possibly hit Hawaii by midweek, officials said.
Forecasters note that hurricane-force winds extend up to 35 miles from the center of the storm, and tropical-storm-force winds extend outward up to 105 miles. The ridge is forecast to strengthen north of the Hawaiian Islands by mid-week which should cause the hurricane to move on a general westward track throughout most of the remainder of the forecast period. "Now is a good time for everyone in the Hawaiian Islands to ensure that they have their hurricane plan in place", it said. The strongest winds are expected downslope from mountains, across elevated terrain, over headlands and through gaps, the NHC said.
Mayor Harry Kim says officials are preparing for whatever nature brings.
Civil Defense will keep the community informed through regular updates. The storm could make a direct hit near Hawaii's Kilauea volcano, which has been spewing lava and molten rock since it erupted May 3.
The Hawaiian Islands include Kauai, Oahu, Molokai, Lanai, Maui, and the island of Hawaii, which is often referred to as the Big Island.
So far, Kilauea's eruption has been ongoing for 93 days straight and more than two dozen volcanic fissures have opened up.
CNN meteorologist Haley Brink said it was too early to tell if the hurricane would trigger an eruption of Kilauea.