The hurricane is moving westward or 275/10 kt. west-northwestward motion is expected over the next day or so as Hector is steered by a deep-layer ridge to its north.
The National Weather Service says, "though it is still a bit too early to determine precise impacts on island weather for the middle of the week as much will depend on track and intensity of the system".
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.
Hurricane-force winds expected up to 30 miles from the center of the storm, while tropical storm-force winds reach up to 105 miles from the center. "However, Hector is expected to still be a major hurricane when it moves into the central Pacific basin", the National Hurricane Center said.
The hurricane is now forecast to pass the south of Hawaii on Wednesday.More news: Google Maps location sharing now includes your phone's battery life
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As of 11 a.m. today, the storm was 1,185 miles east-southeast of Hilo, with maximum sustained winds about 130 mph with higher gusts.
The Kilauea volcano has spewed lava and molten rock into neighborhoods in Hawaii's Big Island for three months.
Hector is about 1360 miles (2190 kilometers) east of South Point, Hawaii, and is forecast to cross into the central Pacific by Sunday night or early Monday.
The eruptions have displaced thousands of residents, damaged roads and destroyed hundreds of homes.