- Chicago Weather: Polar vortex brings brutal cold, Wind Chill Advisory in effect WLS-TV
- Deadly polar vortex sweeping Midwest with wind chills as low as minus 65 CBS This Morning
- Polar Vortex Clobbers Midwest With Record-Breaking Cold HuffPost
- Get used to polar vortex outbreaks, scientists say Chicago Sun-Times
- Life-threatening cold grips U.S., could hit minus 50F in Midwest Reuters
- View full coverage on Google News
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