HONOLULU (HawaiiNewsNow) - The 5:00 A.M. Tuesday update from the National Hurricane Center says Iselle has maintained Category 3 strength. Winds are steady at 125 miles per hour with gusts to 155 mph. The storm is located 1,067 miles ESE of Hilo, Hawaii. Iselle is still a major hurricane on a track headed toward the Hawaiian Islands. Iselle is moving west at 8 miles per hour. It is forecast to turn west-northwest and pick up forward speed later today and Wednesday.The latest forecast track from the National Hurricane Center brings Iselle to the Big Island as a tropical storm on Thursday. The outer fringes of the storm may be felt in the Puna District as early as noon Thursday. The center of the storm is forecast to come ashore near Hilo about 6:00 P.M. that day. A tropical storm can have winds from 39-74 mph. The forecasting responsibilities for Iselle are being handed from the National Hurricane Center to the Central Pacific Hurricane Center. The next advisory is due at 11:00 A.M. Hawaii time.No forecast is certain, but you should prepare for the possibility of heavy rain, flooding, strong winds, power outages, large surf and coastal surge.Iselle is the ninth named tropical cyclone in the Eastern Pacific this hurricane season. We are only two months into the six month season, which runs through November 30.