Building Instability News Today : Breaking News, Live Updates & Top Stories | Vimarsana

$2.5 million. that is preliminary. the dollar figure may go up. so far the figure only includes homes. and businesses. there are also thousands of acres of farmland devastated and that will increase the economic toll from the disaster. shepard: that is just north carolina. thank you, jonathan. this stretched across a number of states in dixie and now our meteorologist. mississippi got hit good while i was there over the weekend and it moves on and on. guest: this is a cycle of severe weather and we will talk about more storms on the way. but, first, the anatomy of a tornado. what we need is warm, humid air that is tapped in from the gulf of mexico and you need this cold, dry air, that usually comes across the rockies, and that building instability, and as you get wind shear involved in the system, you get an updraft and a rotation and the downdraft and when the tornado ....

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