Police say a Bannockburn mum-of-five hasn't accessed any of her bank accounts since disappearing on Friday.

The police air-wing joined the search for Lorrin Whitehead today, hovering over areas near her home, where she was last seen.

Police search and rescue teams have been scouring local grassland and waterways.

Leading Senior Constable Craig Malthouse is concerned the 43 year-old may have run into trouble, as she left behind her medication.

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Police say her disappearance is out of character.

Lorrin’s eldest daughter Amelia says her family is holding out hope, her mum will be found safe and well.

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