That winter storm sweeping the country is set to pack not just a onetwo punch of snow and ice, but also dangerous cold that could last for days. Dr. . John Torres has more on how to protect yourself.Dr. . John, good evening. Jose, this weekend is going to have extremely cold temperatures and the windchill is going to be even colder in some parts of the country, -40, - 50, which means frostbite can set in very, very quickly in a matter of minutes.So, first and foremost, limit the amount of time you're outdoo ...