Thank you for the photos, Erin. The antenna looks like the Winegard FV-30BB.
It looks like the lower loop is out of position, but it is probably just the angle that the photo was taken. If the camera was facing NE, then the horizontal reflector rods at the rear of the antenna should be facing the camera and the X UHF elements should be facing NE. Interestingly, the instructions for the antenna don't tell you which is the front of the antenna, but by convention an antenna photo by the manufacturer shows the front.
http://www.winegard.com/help/images/8/80/2452285.pdf
I see a large metal vent in front of the antenna, an object and tree beyond the vent, and possibly the antenna is below the peak of the roof; not an ideal site.
The street photo shows a large building in the signal path if my guess of your location is correct. If my guess is way off, maybe you can correct me in a PM, and I will redo the image with the green signal lines.
When I looked at your report, I also thought overload, but I agree with Steve; objects in the signal path.