Kamuela, Hawaii — What is happening: Northern areas of the Big Island — Kamuela, Hawi, and Honokaa — are under a Tropical Storm Warning as tropical-storm-force winds bear down. Winds of 40 to 50 mph with gusts to 65 mph are forecast, with the danger window lasting until early Sunday morning. Local impacts: Gusts this strong can damage roofs, siding, porches, and sheds, snap large trees and fences, and fling unsecured objects like projectiles. Some roads could become impassable from debris, and scattered power and communications outages are likely. Shoreline spots may see localized storm-surge flooding up to 1 to 3 feet. What to do: Take shelter now — the wind threat is unfolding. Secure every outdoor object before gusts pick up. Charge phones and flashlights now in case power goes out. Source: National Weather Service Honolulu. Tropical Storm Warning issued September 25 at 4:59 AM HST.