Share this postChicago Polar Vortexdailyoverview.substack.comCopy linkFacebookEmailNoteOtherChicago Polar VortexOverviewNov 29, 2021Share this postChicago Polar Vortexdailyoverview.substack.comCopy linkFacebookEmailNoteOtherShareSource imagery: ESA—Follow Daily Overview here:Web | Instagram | Facebook | Twitter