we'll just keep chasing. there are tornadoes that are too strong for us to intercept. those we'll try to avoid. bill: i think it's interesting you say when it gets to the metro areas folks like yourself have to back off because there is so much debris in that area is that right? >> for research for interest septembering the tornadoes directly, a tornado filled with debris is not one that we'd want to be inside. we'd want to be in a tornado that is in the middle of nowhere, not harming anyone, doesn't have that debris. we are trying to better understand the wind circulations inside tornadoes. to do that when you have debris filing in there it could easily roll our vehicle that attaches to the ground and is covered with armor to protect us from it but when it's going through a dfw area, for example, i mean that is just -- it's unfortunate and there is all kinds of debris flying through the tornadoes. bill: what can do you with the information you're gathering, reed? >> right now we are in the early phase of trying to understand how strong the wind speeds get, especially right near the