Police need information regarding the whereabouts of missing 55-year-old, Lynne-Esther Gill.
Ms Gill was last seen at her home in Canning Vale around 7pm on Friday, December 28.
Ms Gill is described as 155cms tall, fair skinned, with a large build, brown hair and hazel eyes.
She was last seen wearing black and white shorts and a red shirt.
Lynne-Esther is driving a red 2006 model Ford Territory
(pictured below), registration number 1CNY240, which was last seen about 10.10pm last night travelling south along Bussell Highway near Wonnerup Road in Yalyalup.
Police and family have concerns for her welfare and anyone who sees Lynne-Esther or her vehicle, is urged to call police immediately on 131 444.