Camping at Possum Kingdom Lake State Park,Texas.
It rained all night the second night I was there, and the wind blew, I had a buddy with me that stayed in his tent, kinda felt sorry for him, he ended up cold and wet. I was cozy and dry. Having the tarp over the top of it allowed me to keep the roof vent open for fresh air. Cool enough, I didn't need the a/c.