The 68-year-old woman police are trying to find may be suffering from dementia-related symptoms, Blackfalds RCMP said on Monday afternoon.
RCMP have been trying to locate Roze Burk and her dog after they went missing on Thursday evening from the Deer Park Co-op in Red Deer.
Police said Burk has not been diagnosed by medical professionals with dementia.
She was wearing jeans, a pink shirt and long-sleeved grey jacket. She is described as Caucasian, 1.67 metres (five feet six inches) tall, 54 kg (119 pounds), with blue eyes and white hair. She usually wears eye glasses.
Burk, a resident of Red Deer County, was last seen by a friend at the Deer Park Co-op. She is believed to be driving a 2008 grey Ford Escape SUV, bearing Alberta licence plate GCA091.
Burk is believed to be with her West Highland terrier dog, which has shaggy white hair.
Blackfalds RCMP are asking anyone with any information that might help to find Burk to call their at 403-885-3333 or your local police. Information can also be submitted online to www.tipsubmit.com or call Crime Stoppers, 1-800-222-8477.