"Forecasters are sending chills down some spines with a prediction that much of the northern half of the United States could see frigid weather next week similar to life-threatening lows the polar vortex brought to parts of the country in 2014.
Anticipation of a freezing blast began to build this week when weather maps and forecast models showed similarities between next week's system and one that developed in January 2014.
"Upper-level atmosphere configuration very similar in scale & magnitude as infamous Jan 2014 #PolarVortex popularized by me and @afreedma," meteorologist Ryan Maue said on Twitter on Tuesday alongside maps comparing the two weather systems."
Timothy Mclaughlin reports for Reuters December 9, 2016.
"Polar Vortex Redux? U.S. Forecasters Say It Could Hit Next Week"
Source: Reuters, 12/09/2016