Most of you are already know, the entire west coast has taken up a bad habit…..smoking!
California,Oregon and Washington State all have major fires burning right now. The smoke from a forest fire once in the Jet stream can travel for thousands of miles! The smoke is composed of tiny pieces of ash. The thickness of a smoke layer varies. Basically the thicker the cloud, the less light will get through. Until its so thick that the sun is totally blocked.
Another thing that happens with forest fire smoke are surreal sunsets! The sun goes to a deep orange, than to a orangey red, than to a reddish pink and finally to a neon pink. The contrast is very muted because of the low light conditions. Exposures can be tricky.