Meanwhile, Subtropical Storm Debby formed far out over the north Atlantic, but it was expected to be a short-lived storm.
A Tropical Storm Watch is in effect for Big Island interior, summits, north, east and south, including Kohala and Kona. According to the National Hurricane Center, "small but powerful" Hector continues to churn away in the eastern Pacific as a Category 3 storm with maximum sustained winds of 120 miles per hour.
Hector also posed no immediate threat to land, but forecasters said people in Hawaii should monitor the storm's progress as it was projected to pass just south of the islands by midweek. It was moving north at 16 miles per hour with maximum sustained winds of 40 miles per hour. The storm traffic for the rest of the season, which ends officially on November 30, won't be almost as robust, Philip Klotzbach, hurricane specialist at Colorado State University, which pioneered long-range tropical storm forecasting, said last week.
NHC noted that nearby Tropical Storm John is going to have an adverse effect on Ileana.
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Hector's center will track about 150 miles south of the Big Island today, then continuing westward, remaining well south of the rest of the Hawaiian Islands through Thursday.
John was centered about 340 miles (545 kilometers) southwest of the Mexican port of Manzanillo early Monday afternoon, with maximum sustained winds of 70 mph (110 kph).
West of Mexico, Hurricane John was forecast to strengthen into a major hurricane while heading to the northwest parallel to the shore. Local experts continue to remind residents to be prepared and keep their eye on the regular local forecasts, as well as wider Atlantic weather forecasts available on a range of media.