An at-risk 54-year-old woman was reported missing Wednesday after being last seen in South Los Angeles, prompting the issuance of an Endangered Missing Advisory. Silvia Lopez was last seen shortly before 10:20 a.m. Wednesday near Broadway and Vernon Avenue, according to the California Highway Patrol, which issued the alert on behalf of the Los Angeles Police Department. Lopez was described as a 5-foot-3-inch-tall woman weighing 230 pounds with black and gray hair and brown eyes. She was last seen wearing a gray trench coat a brown scarf, and black pants. Anyone with information about Lopez’s whereabouts was urged to call 911.