Violent winds tear through western U.S.

A semi-truck toppled in the wind on I-15 in Centerville, Utah on Thursday, Dec. 1, 2011.  High winds ripping through Utah have overturned several semi-trucks, knocked out power to more than 50,000 cus
A semi-truck toppled in the wind on I-15 in Centerville, Utah on Thursday, Dec. 1, 2011. High winds ripping through Utah have overturned several semi-trucks, knocked out power to more than 50,000 customers and prompted school closures.
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