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More than 9,000 and counting have gathered at the downtown evacuation center at the George R. Brown Convention Center on Tuesday, Aug. 29, 2017 in Houston, Texas. (Robert Gauthier/Los Angeles Times)

More than 9,000 and counting have gathered at the downtown evacuation center at the George R. Brown Convention Center on Tuesday, Aug. 29, 2017 in Houston, Texas. (Robert Gauthier/Los Angeles Times)