She was last heard from on Christmas Eve, when she talked to family members on the telephone.
At the time, she told family members she planned to go into Philadelphia on New Year's Day for the Mummers Parade.
Boone did not say exactly where in the city she was going, or if she was going with anyone.
Boone's family has tried to reach her since January 1st, without success.
Her vehicle was discovered in the parking lot of her complex.
