Out in the DaveCave(tm) and someone on the Tesla list sent a link to this video:
From the shooters comment:
Uploaded by BrianLuenser on May 11, 2011 This is the aftermath of a pretty brutal thunderstorm in Fort Worth Texas on May 10, 2011. It was taken from my balcony on the 34th floor of a building in Fort Worth. Though I thought we were at war or was terrorism, it was a massive series of power transformers blowing. As I took it with my 70-200 2.8L IS lens, it is farther away than it looks. (it is 5 miles away) That is why there are not explosion sounds. This was a very well documented event. I was on my balcony to take lightning pictures (Yes, not smart) and this started happening in front of me. I turned my camera (Canon 5d MkII) to video mode and let it roll.