This from Drew Gresik:

Here are some quick images from Sunday morning’s 2-11 on the West Side. Engine 117 and the tower arrived and found heavy fire in the rear and in the attic of a 2.5 story balloon frame. Battalion 18 quickly requested a Still & Box and 2-2-4 requested a 2-11 a short time later. The fire got into the D-side exposure building but that structure was largely saved by the companies operating on scene. Tower 14 and Squad 2 worked elevated master streams, and several handlines were utilized as well.
Drew Gresik
flames through roof of house on fire

Drew Gresik photo

flames through roof of house on fire

Drew Gresik photo

flames through roof of house on fire

Drew Gresik photo

firefighters covered with ice battling fire

Drew Gresik photo

firefighters covered with ice battling fire

Drew Gresik photo

Chicago FD Engine 117

Drew Gresik photo