![Chicago, USA. 30th Jan 2019. Despite the polar vortex and temperatures of 20 below zero some hardy folks ventured to Chicago's shoreline to see the unusual winter fog effect rising from the Chicago, USA. 30th Jan 2019. Despite the polar vortex and temperatures of 20 below zero some hardy folks ventured to Chicago's shoreline to see the unusual winter fog effect rising from the](https://c8.alamy.com/comp/RGMHKD/chicago-usa-30th-jan-2019-despite-the-polar-vortex-and-temperatures-of-20-below-zero-some-hardy-folks-ventured-to-chicagos-shoreline-to-see-the-unusual-winter-fog-effect-rising-from-the-not-yet-frozen-lake-michigan-credit-matthew-kaplanalamy-live-news-RGMHKD.jpg)
Chicago, USA. 30th Jan 2019. Despite the polar vortex and temperatures of 20 below zero some hardy folks ventured to Chicago's shoreline to see the unusual winter fog effect rising from the
![Frozen Lake Michigan with sheet of ice and snow during polar vortex in Chicago, Illinois Stock Photo - Alamy Frozen Lake Michigan with sheet of ice and snow during polar vortex in Chicago, Illinois Stock Photo - Alamy](https://c8.alamy.com/comp/RGYC9A/frozen-lake-michigan-with-sheet-of-ice-and-snow-during-polar-vortex-in-chicago-illinois-RGYC9A.jpg)
Frozen Lake Michigan with sheet of ice and snow during polar vortex in Chicago, Illinois Stock Photo - Alamy
![Polar vortex 2019: Chilling photos that'll freeze you solid from the weather that brought extreme cold to the Midwest United States Polar vortex 2019: Chilling photos that'll freeze you solid from the weather that brought extreme cold to the Midwest United States](https://assets3.cbsnewsstatic.com/hub/i/r/2019/01/31/e471b154-e680-4656-821b-80820a3d9c14/thumbnail/640x640/7c498b39f43471af71d1344e5d15c45c/polarvortex-rachel-wolf.jpg)