This from Eric Haak:
I arrived 25 minutes into this job which started just before noon on Monday in Chicago at the intersection of Thomas and Pulaski. The temperature at that time was -14 and the wind chills were varying around -35. There was not much to see as far as firefighting but with much respect to all people working outdoors in these conditions, I thought I would share some images of companies picking up.
More images from Tim Olk: