The Hawaiian Islands, particularly the Big Island, are at risk of heavy rainfall starting late Saturday night, which could lead to life-threatening flooding and mudslides, especially in steep terrain and areas recently affected by Tropical Storm Lala. Wind and wave impacts are also possible, regardless of the system's exact track and intensity. Watches may be issued for portions of the islands as early as tonight or Friday. Residents should prepare for potential hazards, including localized flooding and strong winds.