Looks about the same condition as a brick chimney I seen at a customer's home a few years ago that took a direct hit.
I heard once sap turning to steam was what caused the tree bark to explode.
That happened last year (August 15th or there abouts) not too far from the location Chris is posting about today except it wasn't the bark but the whole tree that exploded. Sprayed debris over a 1/4 mile, damaged 14 houses including two that ended up condemned as a result. Never heard what happened to them after that.
Damn Larry, What a memory you have!

Right on the button! I didn't realize it was that late in the year. Here was the discussion that took place. Nothing special but still a little convo.
http://www.capeweather.com/ftopict-251.htmlEdit:
Larry, forgot to ask...did you happen to see that funnel cloud out your way? It was around 12:30PM. I saw it from the Home Depot on Veterans and Skyline Blvd. Don't know how far out west it was but it appeared that it was either on the ground or in the water.