https://phys.org/news/2018-08-hector-weakens-category-hurricane.html

Hurricane-force winds extend outward up to 30 miles (45 km) from the center and tropical-storm-force winds extend outward up to 90 miles (150 km).

The forecast track brings the center of Hector roughly 165 miles south of the Big Island as a strong category 2 hurricane on Wednesday, and given the proximity of the storm to the island, the Tropical Storm Watch remains in effect. Swells generated by Hector are expected to reach southeast and east facing shores of the Big Island and eastern Maui late today, likely becoming large and dangerous by late tonight and Wednesday. In addition, tropical storm force winds are possible across Hawaii County late tonight and Wednesday.

                                                            
                                    
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