The Big Island is at the highest risk, with potential rainfall of 15 to 20 inches and isolated totals up to 35 inches. Maui could see 5 to 10 inches, while Oahu and Kauai may experience 4 inches and 3 inches, respectively. Flooding is expected to be severe, particularly in areas recovering from previous storms. Hurricane-force winds exceeding 75 mph could cause structural damage and power outages. Residents in flood-prone areas are advised to evacuate, as flash flooding and landslides are possible. Emergency officials have urged caution, especially for those with medical needs or limited mobility.