Source: https://www.washingtonpost.com/news/post-nation/wp/2017/08/28/harvey-may-force-30000-people-into-shelters-while-flooding-will-linger-officials-warn/?hpid=hp_hp-top-table-main_houstonledeall-820am%3Ahomepage%2Fstory&utm_term=.e836d42636fa