Polar vortex brings deadly cold snap to US states - BBC News
- Polar vortex brings deadly cold snap to US states BBC News
- Polar vortex: how cold will it be and what should the midwest expect? The Guardian
- Chicago weather: 'People will DIE' as flesh FREEZES in terrifying –54F polar vortex Express.co.uk
- Polar vortex wreaks havoc on Midwest and causes more than 2,700 flight cancellations Daily Mail
- Polar vortex blasts US with life-threatening cold The Guardian
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