The forecasted heavy rainfall and strong winds pose significant risks to Hawaii, particularly the Big Island and Maui. Flooding and mudslides are expected in areas of steep terrain, with life-threatening conditions possible. Hurricane-force winds of 74+ mph may impact the south side of the Big Island, with isolated gusts reaching 90 mph if the storm's center moves closer. Residents are advised to prepare for potential property damage, power outages, and hazardous road conditions. The storm's impacts are compounded by ongoing recovery efforts from previous hurricanes this season.