Her three daughters, Jenny Tonkin, Heather Wensley, Susie Graham and niece Janice McKenna fronted a media conference at the Warrnambool police station on Monday afternoon.

They said it was highly usual for 84-year-old Ethel to go missing.

The Victoria Police air wing was involved in the search for Ethel at the weekend.

Warrnambool police Sergeant Blake Amos said the search was continuing and expanding.

He said the police air wing conducted a search in the Dunkeld, Glenthompson and Grampians area at the weekend.

"Glenthompson at 4.30pm last Thursday was the last known location of Ethel's mobile telephone," he said.

"There have been no movements on her bank accounts.

"We are concerned for her welfare and are requesting information from the public to help locate her."

Ethel, who is also known as Rosie, is believed to have left with her dog, Maltese shih tzu, in a grey Holden commodore with registration YGT-150.

Ethel had a hair cut on Thursday and her daughter Heather Wensley said the women at the hairdressers reported that Ethel was out of sorts.

She left home without one of her dogs and two cats, and no food was provided for the animals at her home.

Mrs Wensley said her mother had a procedure in April which had a negative impact on her health and she had not been the same since having a COVID vaccine the weekend before she went missing.

"She has not been her normal self," she said.

"She was to go to the supermarket and then straight home but we don't believe that happened. She has no connection with the Dunkeld/Glenthompson area where her mobile phone was last located.

"There was no argument or anything like that and we are just deeply concerned."

Mrs McKenna requested her aunt contact family member or the police as soon as possible.

"We just want her to come home. Please come home," she said.

South-west residents are also asked to check out-of-the-way roads for Ethel's grey Holden sedan.

Anyone with information is requested to contact the Warrnambool police station on 5560 1333 or Crime Stoppers on 1800 333 000.

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