jamie shellstad has jumped into the frigid ice water for the past seven years. she brought her kids to see what her tradition has been about until 2016. the american cancer society had taken over the boulder polar plunge and promised that it will return on new year's day in 2017. so one year from now. >> still huge crowds. that would have been a rough road today. no question. any day this past week would have been a rough day for a polar plunge. >> i know. absolutely. >>> we have been in this deep freeze about a week now. believe it or not, temperatures climbed above the freeze mark from where we have been over the holidays. tonight for those lower mountain valleys, they are really going to get cold. we are already plunging into below zero territory. about 26 below in gunnison. nine below in steamboat springs. you can see eastern colorado not quite as baa. if you live along the south platte river valley, i expect temperatures to take a plummet. we are at 20 degrees. anchorage, alaska warmer than we are! 24 in leadville. five in gunnison. and 3 in steam boat spri