The reward for helping to locate Linda Gale Reed is now $10,000.
The 65 year-old woman was last heard from Sunday evening when she spoke with her husband on the phone about 9 p.m. according to family members.
Reed's vehicle was found Monday in a wooded area just off I-55 in Gallman.
Reed's family says she doesn't have any mental health issues and wouldn't have wondered away.
Volunteers who would like to help search for Reed are asked to meet at the Copiah County Fairgrounds.
If you have any information on her whereabouts you're asked to call the Copiah County Sheriff's Department.
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Visiting first responders provided immediate assistance to the victim with beach lifeguards also responding.