UPDATE Saturday morning - Nadelle has been located.

EARLIER - Police are appealing for public assistance to help locate missing person Nadelle Eastwell.

The 21-year-old was last seen at the Ballarat Base Hospital yesterday at 11am.

Police and family have concerns for her welfare.

Nadelle is described as 170cm tall, with a slim build and brown hair and could be in the Ballarat, Warrnambool or Horsham areas.

Police have released an image of Nadelle in the hope that someone knows her current whereabouts.

Anyone who sees Nadelle is urged to contact Horsham police on 5382 9273.