HONOLULU: Hawaii officials urged people in hard-hit areas to evacuate Saturday due to the state’s worst flooding in more than 20 years, after heavy rains fell on soil already saturated by downpours from a winter storm a week ago with still more expected over the weekend. Muddy floodwaters smothered vast stretches of Oahu’s North Shore, a community world-renowned for its big-wave surfing. Raging waters lifted homes and cars and prompted evacuation orders for 5,500 people north of Honolulu, though they were later lifted. Authorities cautioned that a 120-year-old dam could fail.

Officials warn some residents could be trapped by rising waters as Wahiawā dam on Oahu ‘may collapse at any time’

Gov. Josh Green said the cost of the storm could top $1 billion, including damage to airports, schools, roads, people's homes and a Maui hospital in Kula.