My wakeup HR was 49 (I consider 48 as my normal), and I felt fine while I dressed and stretched. I was on the Parkway at 8:20 am, and I enjoyed my run. I felt stronger than I had earlier in the week, and I ran a bit faster, still running at my comfortable pace. I drank 16 ounces of water and 8 ounces of Gatorade during the run. When I returned, my urine was a light yellow, ok but a bit darker than I would like.
The shade temperature was 70 (F) when I left. I forgot to check it when I returned, but right now (2 hours later) it is 94 (F). It was probably in the low 80s (F) when I returned.