lying areas to leave their homes and many heeded the warning, streaming away in long lines of cars all day Saturday and draining gas stations dry. "We've deployed a lot of resources. We've pre-positioned medical, water, food, other kinds of supplies," Homeland Security Secretary Michael Chertoff told ABC's "This Week." "But people have to be braced for a very serious storm." In Pensacola, emergency officials told residents who decided to ride the storm out at home to write their names in waterproof ink across their chests in case they were killed and needed to be identified, WFOR television reported. "Well I figured I could ride it out but the latest news is a bit grim," Jimmy Redd said as he abandoned his home and trudged through gusty squalls to the Pensacola civic center, which was serving as a shelter for 2,500 people. --More 2338 Local Time 2038 GMT