Polar vortex causes extreme cold warnings across 11 states
Polar vortex causes extreme cold warnings across 11 stateshttps://wpnnradio.com/wp-content/themes/movedo/images/empty/thumbnail.jpg150150adminadminhttps://secure.gravatar.com/avatar/790df65a416873c3f0501d984b0b24a2f32bf2af0d1509085b901ade4bbb36e7?s=96&d=mm&r=g
The National Weather Service has issued extreme cold warnings for millions of Americans from the Canadian border to Texas. CBS News correspondent Nicole Valdes reports on the historic low temperatures. source
