I am in nashville visiting my mom. Her apartment is on 2nd ave. At appx. 430 am we woke up hearing gunshots, like someone was firing into the air. I looked out of my window and saw an rv parked down there. At around 515 a loud speaker coming from the rv started announcing for people to get out and away from the area. It played the message over and over for nearly half an hour, finally it said, you have 15 minutes to get away. I got my family out of our building. We drove across to titan stadium and parked and waited. After about 20 minutes we started driving across the bridge when the explosion went up. The fireball went up as high as the bat building. Crazy. I would have been a great spot on the wall as my apt was right above the RV.