Mormons line up outside the historic Salt Lake Temple for an annual conference in April 2010. George Frey/Getty Images hide caption

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Yellow: Gusts of 40 to 60 mph are likely. Orange: Gusts of 50 to 70 mph are likely. Red: Gusts of 60 to 80 mph are likely (and higher gusts have already been recorded). National Weather Service hide caption

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