CNN The Lead With Jake Tapper May 30, 2013 20:23:00
Tornado on the ground near perkins? >> yes. these are different cells associated with a dry line and the storms fired up on the dry line earlier and became individual storms with an individual updraft which sustains these. we are on the -- one of the further south ones. there are actually more storms back to the southwest which could also produce tornadoes later on as well. >> spencer, how often is there a super cell like this or different storms, different cells like these in oklahoma without a tornado that causes damage appearing in your experience? >> usually they don't cause any damage but...
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