I was hog hunting in Wilson ok. A strange burst of wind hit me. This wind was blowing in a circle,and making a strange humming sound. Much like a high powered electric motor. I would have thought it was a natural occurance had it not been for the humming. This wind was blowing at 30-40 mph in a circular pattern. I know this because I could see the tops of the trees bending in a circular pattern. This noise stayed over my head for about two minutes,before moving away. I watched the tree's blow in a circular pattern for about one hundred yards as it moved away. My feelings and reaction were of terror. I was armed with a rifle and a handgun and was terrified. Somthing flew over my head I could not see. I'm certain of it.