Police deployed drones, the canine unit, water police and divers to the Attadale area after Bowden was reported missing. She was last seen driving a silver Mitsubishi Lancer sedan on Saturday morning. The car was later located abandoned on Burke Drive, prompting a search of the nearby river.
A police spokesperson said officers held concerns for her welfare. Police are asking local residents to review any CCTV, dash cam or home security footage that may show Bowden or her vehicle, and to contact police.
Bowden is described as having fair skin, a medium build, long brown hair and green eyes. It is not known what clothing she was wearing when she was last seen. The search is ongoing.