Tornado Picking News Today

3:00 eastern. how does this tornado rank in overall weather history? nbc meteorologist bill karins joining us now. bill, it is obviously one of the deadliest in history. give us the context here. >> andrea, it is one of the deadliest in our life times. unless you remember the tornadoes of 1953, not many of us do, this is it. this has been an incredible event. this combined with alabama makes it historical, almost unheard of. this is what it looked like last night. this was a zoomed in radar on t...