I came home from Spokane (WA) to find my neighborhood engulfed in smoke. Fires are fairly common (one every year or so) in this area. There is a lot of forested land south of me, with a large part of that in a National Reserve. The day before yesterday, there was another fire, this one on Turnbull Reservation, also not far from me.
There are two main train tracks running east and west, at the end of my property, so lots of potential for sparks off the tracks, which start a lot of fires each year. If you look closely, you will see a train back by the forest.
And this is the smoky beauty it created this morning!