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Hurricane Iselle nearing Big Island as a Category 1 storm

Updated: 
August 6, 2014 - 11:27pm

At 8 p.m. HST on Wednesday, the center of Hurricane Iselle was located at 18.0N 148.4W:

445 miles ESE of Hilo

510 miles ESE of Kailua-Kona

480 miles E of South Point

560 miles ESE of Kahului

610 miles ESE of Kaunakakai

585 miles ESE of Lanai City

660 miles ESE of Honolulu

755 miles ESE of Lihue

805 miles ESE of Niihau

Hurricane Iselle continues to pack 90 mph winds Wednesday night as the Category 1 storm makes its way toward the Hawaiian Islands.

Iselle is expected to hit the Big Island starting Thursday afternoon and a hurricane warning remains for Hawaii’s largest island its surrounding waters, according to the Central Pacific Hurricane Center and National Weather Service in Honolulu.

Hurricane Iselle was forecast to arrive on the Big Island Thursday as a strong tropical storm or low Category 1 hurricane packing at least 60 to 70 mph sustained winds, gusts to 80 mph, and 5 to 8 inches of rainfall. High surf ahead of Iselle is slated to hit windward shores Wednesday night, and Hurricane Julio could bring more wind and rain on Sunday.

Iselle is predicted to bring widespread flooding beginning Thursday afternoon and continuing through Friday. The National Weather Service placed the island under a tropical storm watch and the entire island chain under a flash flood watch effective from 4 a.m. Thursday to 6 a.m. Saturday.

Big Island schools will be closed Thursday and Friday, and select schools to be used as shelters closed early at 2 p.m. Wednesday. Residents are urged to prepare for power outages, potential mudslides and flash flooding. They should also secure loose objects in their yards and have supplies of food, water and other essentials on hand as the state faces potentially the worst weather in more than two decades.

Located 405 miles east of Hilo Wednesday at 8 p.m., Iselle was circulating 90 mph winds and tracking west-northwest at 18 mph. The Big Island is directly in its projected path. The system was expected to weaken as it moves into increased vertical wind shear and drier air east of the islands. Hurricane force winds extend 30 miles from the center, and tropical storm force winds extend 115 miles in radius.

Forecast models at the Central Pacific Hurricane Center call for a 87 percent chance of tropical storm force winds in Hilo, a 79 percent chance for Kona and a 64 percent chance for South Point. Tropical storm force winds range from 39 to 73 mph. Hilo has a 16 percent chance and Kona has a 12 percent likelihood of hurricane force winds from the system.

Julio, a Category 1 hurricane, could deliver a second punch Sunday. There is a lot of uncertainty about its exact course and the amount of rainfall and wind it will bring, NWS meteorologist Eric Lau said. Julio was located 1,455 miles southwest of the southern tip of Baja California and tracking west at 16 mph, with 85 mph sustained winds. It was expected to continue strengthening over the next couple of days.

Residents in coastal areas and areas prone to surf and surge impact are advised to take precautions. All residents are encouraged to remain off the roadways and to anticipate possible power outages and interruptions in telephone and other communication systems