Comments & ID Thoughts
This definitely looks like some kind of Orb Weaver. It was about the size of a full grown Argiope aurantia (Black and Yellow Garden Spider). According to a USA Today article, "Spider species makes 1st U.S. appearance in Georgia", this very well might be an East Asian Joro spider. I spotted it up in a tree, while I was on a ladder. It was getting dark and the wind was blowing. It was hard to capture a decent image.