there was a multivortex tornado. when we're talking about more than one funnel there, that can cause very chaotic destruction and spotty from place to place as well. this stayed on the ground for a long period of time and moved through the downtown center and continued through many of the suburbs as well. so, it was a large destructive tornado on doppler radar. we could see what we see a debris ball, which is a strong signature, that things like those trees -- there you can see it, that bright pink ball you can see near the center of your screen. that tells us there are things like roofs and wood and trees all getting thrown up well into the atmosphere. in fact, you know, could be up there several thousand feet. so, when you see a signature like that, you know how serious this situation is. to go through a populated area like this, just so sad and so devastating. now, there's very little communication. a lot of people are having