This is one of a few time lapse photos I took at an LRT crossing downtown. This was taken just after sun set. So, there was enough light reflected from the sky to make the snow appear blue. So, "fixing" white balance to make the snow white, made the sky whiter, which I guess is ok.
One of the articulated buses Calgary Transit has, used mainly for the Bus Rapid Transit (BRT) routes. Cowboys (formerly Coyotes) is in the background.
Actually, I only saw smoke, and have no idea if there was a fire.