Parts of the plains and Midwest are under the threat of severe weather, including possible tornadoes. Jim Axelrod speaks with CBS News weather consultant David Bernard about what to expect in the ... more 
Parts of the plains and Midwest are under the threat of severe weather, including possible tornadoes. Jim Axelrod speaks with CBS News weather consultant David Bernard about what to expect in the coming days. less 
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Sat, May 18, 2013 8:15 PM EDT