Polar vortex: -46C temperatures turn Chicago River to ice – video report - The Guardian

1. Polar vortex: -46C temperatures turn Chicago River to ice – video report  The Guardian
2. Deadly polar vortex sweeping Midwest with wind chills as low as minus 65  CBS This Morning
3. These are the Coldest Temperatures of All Time in Chicago - And We Could Get Even Colder  NBC Chicago
4. LIVE TEMPERATURES: Chicago Weather: Polar vortex brings record cold, Wind Chill Warning in effect  WLS-TV
5. Americans warned not to go outside as Polar vortex grips Midwest with record low temperatures  The Telegraph
6. View full coverage on Google News

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