FOX NEWS: Polar vortex causes Chicago River to 'smoke,' freeze as subzero temperatures hit

Polar vortex causes Chicago River to 'smoke,' freeze as subzero temperatures hit



Signs of the bitter cold are all around — most notably surrounding the Chicago River, which is currently "smoking" and starting to freeze over while in the powerful polar vortex's grip.

via FOX NEWS https://fxn.ws/2WDsUsq