Polar vortex-related Arctic outbreak to put U.S., Europe in deep freeze - Axios

Polar vortex-related Arctic outbreak to put U.S., Europe in deep freeze  AxiosTemperatures Plummet Due to Arctic Blast To Kick Off The New Year  The Weather ChannelThis month may be the coldest January since 2011: Cold front coming to the Upstate  Greenville NewsCold Snap Is Forecast to Grip Much of the United States  The New York Times