Patricia Ybarra, 68, from Mesa, AZ was discovered missing around 3:30 p.m., said Detective Steve Berry.
Patricia was at her home opn Southern Avenue and Sossaman Road and then went missing. Ybarra has advanced dementia.
Police are asking the public to look out for her, because she will not ask for help, and to call the police if you see her.
Ybarra is described as a Hispanic female with gray hair and brown eyes, 5’4″ inches tall, and weighs about 150 pounds.
She was last seen wearing lime green pants and a gray shirt. Her hair was in two braids.