Detailed text transcripts for TV channel - MSNBC - 20150525:12:49:00
Horrible day. a tornado starts with a supercell, a rotating thunderstorm. on these tornados there is one thing that clearly stands out, especially when we look at radar. it's called a hook echo. that's an appendage on the southern flank of the storm. we know these storms aren't flat. they're vertical 40 50, 60,000 feet. let's pull this thing up and look at it. when you look at this big rotating thunderstorm and as massive as it is look at what's going on down here. look at that tornado. so just a small part but the most violent part of that supercell is right there in that tornado. so let's li...