In reply to andymac:
Scary stuff ! I had a similar experience yesterday on mam tor in the peak district . The whole world went electric blue only a few meters to one side and there was a sound like a bomb had gone off ( but miles louder ) .
I'd already been running downhill to get out of harm's way and was slightly concerned as I had a walking pole on my rucksack - and I didn't want to become a human lightning conductor .