I based out of Lexington morning of, and waited in Columbus until afternoon to see what storms would do. Like most everyone else I was disappointed to see storms would not remain isolated. The only tornado warns were for the HP monster surging east at 45+ knots. I initially thought I might approach from the south to have a quick look at the cell that left Ord - which I cautiously did. However, I ended up shaving my margin too thin and got stuck in road construction with a delay and pilot car setup on a one lane highway. This mistake, and missing a couple radar frames, put me in harms way as the storm continued to advance ESE and build itself to the south. No matter how hard I tried, with that road network and the incredible storm speed, I was going to get cored - something I have always been careful to avoid. By clever navigation I was able to avoid the worst of it, but was still pelted with enough large stones to cause considerable damage to my vehicle. This was a hard learned lesson. I was frustrated with the season and storms that day, and let it affect my judgement. I should have headed home as soon as storms formed a squall. This is the first time in my four years chasing I have made such a mistake and I hope it is my last. Pictures to follow if I can find any that are decent in that mess.