James Story Moon is believed to have a cognitive impairment. He was last seen at 912 Lacy Lane, authorities said.
Moon is white, with short, gray hair and hazel eyes. He is about 5 feet 7 inches tall and 190 pounds.
He might be driving a white 2008 Mercury Marquis with New Jersey license plate number WKC-18U. Authorities believe he might be driving to 909 Morningside Drive in Swartswood Lake, N.J.
Anyone with information on Moon's whereabouts is asked to call the Wake County Sheriff's Office at 919-856-6911.
Developed in 2007, Silver Alert is a system to quickly notify 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.