CNN's Chad Myers breaks down how El Niño is raising temperatures across the United States. <script type='text/javascript' src='http://z.cdn.turner.com/cnn/van/resources/scripts/van-widgets.js'></script> <div data-cnnvansinglewidget data-affiliate='gantdaily' data-videoid='weather/2015/12/11/warm-winter-chady-myers-mss-orig.cnn' data-size='auto' data-autostart='true'></div>