phildaant, click on any entry in the table of your TVFool report to get the path profile used between transmitter and you. And, yes, it's because you're hard up against the south side of the hill.
To be accurate as possible, use the maps
option to create your report. What you get is a Google map with a red icon for the receive location. Be sure it's in the right place (you can zoom in and drag it around). Next, experiment with the antenna height value. Everytime you click away from that box, the predictions update. To create a report to share, be sure to click the "make radar plot" button.