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- 77 below zero? Polar vortex yields deadly cold as thousands endure power cuts, travel issues mount in Midwest AccuWeather.com
- Polar vortex: -46C temperatures turn Chicago River to ice Guardian News
- Chicago Weather Forecast Calls For More Snow Thursday Before Temperatures Rise CBS Chicago
- How dangerous (and historic) is the Polar Vortex hitting the Midwest? | TheHill The Hill
- View full coverage on Google News
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