The threat of violent tornadoes in parts of the U.S. proved deadly as well as destructive as whipping winds moved east into the Mississippi Valley and Deep South on Saturday, with at least six people killed and scores of homes decimated.

A cross-country storm will explode in strength as it moves over the central United States Friday, delivering extreme weather to millions through the weekend, including the<a class="excerpt-read-more"

The threat of tornadoes is moving east into the Mississippi Valley and Deep South a day after a massive storm system moving across the country unleashed winds that damaged buildings, whipped up dust s