Gregory Canyon climbing

We're working our way through Roach's guidebook... did a few more climbs Saturday in the Amphitheater. We've climbed 13 of the 25 climbs (not counting variations) in the main Amphitheater area. The last climb we attempted was a 2 or 3 pitch route up the Second Pinnacle. I was at the top of the first pitch setting up an anchor when we heard horrible thunder coming from all directions. Scary and unexpected. I was almost a full rope-length out, so lowering was not possible and rappelling was not a good option. Instead, I downclimbed the pitch, removing pro as I went. Good thing it was only a 5.2! As we hiked out it was just starting to sprinkle.