weighted down with heavy rainfall. they can cause jams. we'll come back to this video in a moment. as you know all know, watching chad meyers or other meteorologists here at cnn, this is our radar image. even on local levels you heard of the hook echo. this is el reno here. this is to the south. they don't really want to get positioned in this area where they'll have heavy rain. then you get into the hail core. they don't want that. we've seen too many windshields shattered. many times the radar will show us debris. it's cuddle a debris ball. they want to stay down here in the clear, staying to the southeast, getting a visual, watching it move off to the east-northeast. they want to stay away from this area here. this enhanced v. many storm chasers give the term the bear trip to this. the video shows it best. we'll tuck to the storm chases that you see in the video. debris is hitting them. the tornado is well off to the left of their screen. this is the in-flow valve, the