The Clearlake Police Department is asking help in locating a missing, at-risk adult. Ronald Lambert was last seen in Clearlake by Old Highway 53 early Monday evening. Ronald is 5 feet 8 inches tall and 158 pounds, with blue eyes, is bald and has a long white beard. He was wearing a light-colored shirt, blue jeans, a plastic watch, a copper bracelet and a belt buckle. He requires medication. Anyone with information is asked to contact Clearlake PD.