A truck driver was driving an 18-wheel tractor-trailer in heavy traffic when he encountered hard rain and wind. As the storm intensified, he slowed his speed and decided to get off the interstate to seek shelter. Traffic was backed up on the exit ramp, so he decided to drive to the next exit. As he continued driving, he saw a billboard or exit sign blow across the highway. The driver then slowed his speed further. His vehicle began to vibrate and shake, so he looked in his rearview mirror and saw the truck’s trailer rising up off the ground. Then a tornado struck the rig and lifted it off the ground.