The Big Island faces the highest risk, with hurricane-force winds expected to arrive as early as Friday night. Rainfall totals could reach 8-12 inches across Maui and the Big Island, with localized areas receiving up to 25 inches, leading to flash floods, mudslides, and landslides. Tropical storm winds and heavy rain are also anticipated for smaller islands, including Maui, Oahu, and Kauai. Storm surge of up to three feet and waves as high as 20 feet are forecasted, posing additional hazards to coastal areas.