it moving that way. >> they're difficult to predict, and this one is unusual for the fact that it was in december. why do you chase tornados, considering all this danger? >> well, we do it because, one thing is as you can tell in the video, there's no balances. there's really no emergency responders on site there. if you happen to be in a spot like that when it happens, you can help. you're the first person there to help. another reason is the more you know about it, we live in jop n joplin, missouri which is where 2011, actually, the most destructive tornado in recent history was there. when you live somewhere like that and you have friends and family there, the more you can learn and know, the more you can help them stay safe as well. especially if you're not home. >> yeah. you've grown up with these things. dan smith on the phone with us near tallahassee, florida, talking to us about what he witnessed while in mississippi. our meteorologist, pedram