Thomas Roberts has the latest on the flash flooding in Utah, and how the crisis developed so quickly. Plus a look at the devastating fires in the West.Sept. 15, 2015
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Major winter storm developing from West Coast to Plains
01:49
Non-stop snow pounds California's Sierra Nevada, closing down freeways
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Search underway for missing helicopter carrying 5 Marines
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California rains expected into the night as falling trees kill 2 people
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Weather as a wildcard: Frigid Iowa cold holds potential for discouraging caucus participants
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Frigid temperatures could impact Iowa caucus turnout