I'd say it mostly had to do with weather. There was rain around the area all evening & at many times it got dangerously close. I know I left way later than I normally do because I was watching the weather & trying to make a decision. Even though I almost didn't go, I did & I was glad. I just wish we could get the car counts (especially the 358's) back up.
I started driving up to the Grove at the time that I normally do, and there was no rain until I got up to E-Town.
As I was driving west of E-Town, it started pouring hard so I turned around and headed back home.
I checked on the Forum to see if there was any info about the weather in the Grove area.
There were a few responses that it wasn't raining up there so I headed back up.
At one point during the night, a few light rain drops were coming down at the track.
If you looked towards Turn 2, there were a lot of dark clouds and flashes of lightning from time-to-time.