Brendan,
Yes, I am sure that what caused the problems. I just happened to be looking out the back door as the lighting struck the ground next to my fence. The bolt was about 2 feet in diameter and there was a ball of fire on the ground about 3 - 4 feet in diameter just rolling around. All was over in 10 - 15 seconds and is still burned in my mind. It all went down about 200 ft from the observatory too.??
Niel