Vess, who was believed to be suffering from dementia or some other cognitive impairment, was last seen at 1001 Chimney Hill Drive in Apex.
Additional information on where Vess was located was not available Sunday.
Developed in 2007, Silver Alert is a system that quickly notifies the public about missing endangered adults who suffer from dementia or other cognitive impairments, such as Alzheimer's disease.
It also allows caregivers and nursing homes to report a person missing. In the past, only a family member could report an adult missing.