On the way in to work this morning, we saw a big mushroom cloud south of downtown Dallas. The radio said there were a series of explosions going on at an industrial gas supply company. Propane and acetylene cylinders were said to be flying through the air like fireworks. The major highways nearby were shut down, including 35, which we were on at the time. We managed to get across the grass onto the access road so we weren’t trapped in the traffic for too long. We didn’t see any of the flaming shrapnel described on the radio but grey ash was drifting down all over the road and our car. In a few places the ash was blowing around like snow in gusts of wind. I got a few photos of the scene with my cell phone as we detoured around the disaster area.