The US commercial weather forecaster AccuWeather predicted Hurricane Hector to track south of Hawaii by the middle of this week.
Hurricane Hector maintained strength as a powerful Category 3 storm in the Eastern Pacific overnight as it continued moving closer to the Central Pacific.
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.
"Slow weakening is forecast during the next few days".
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The storm was about 1,390 miles southeast of the Hawaiian islands, and it was uncertain if it would hit or just brush by the southern edge of the Big Island by Wednesday, said a meteorologist at the National Weather Service's Weather Prediction Center in College Park Maryland.
Hector is moving toward the west near 12 miles per hour, and the NHC says this general motion is expected to continue for the next few days with a slight increase in forward speed.
At this far distance, it can still change directions and avoid the Big Island of Hawaii altogether, but the high speeds of a hurricane combined with the erupting Kilauea volcano is a concern.
The United State Geological Survey did provide a bit of good news about Kilauea volcano via Twitter on Sunday.
Hurricane Hector will continue to churn out in the Pacific and could reach Hawaii as early as Wednesday although, by that time, it should start to weaken.
Since the Kilauea volcano erupted in May on the Big Island, thousands of residents have been displaced, hundreds of homes destroyed and roads damaged.