CNN CNN Newsroom May 30, 2013 19:16:00
Almost a square box hanging down. it's round, but you get it from afar, it just looks like a part that lowers to the ground. somewhere out of that is where the tornado would form. right now, the weather service still does not have a tornado warning on that chickasha storm. 10,000, 15,000 feet high, but because no one lives up there, they are not warning people because of that. they do not believe the tornado is touching or reaching for the ground just yet. that's what's called the low-level circulation. when that low-level circulation tightens up or becomes a spin, that's when the warning will...