I was watching the radar on TV as a line of strong storms moved through St. Louis. They were watching several areas of rotation along the leading edge. The meteorologist said something about the likelihood of the rotations becoming tornadoes increased as the line became more "linear" North to South. What does the orientation of the line of storms have to do with formation of (I think pop-up) tornadoes? Or maybe I misheard.
These storms produced a couple of tornadoes shortly after crossing into IL. Someone on here chased these storms and posted about it.
These storms produced a couple of tornadoes shortly after crossing into IL. Someone on here chased these storms and posted about it.