Reminds me of travelling near a large forest fire in Australia. The sky was covered with smoke such that the middle of the day was almost dark as night. Ash fell from the sky. Pretty scary. Took hours of driving to get away from that.
We were driving east out of Montana when there were bad fires a number of years ago. The sky was lit up but looked black, and we were driving parallel to the mountain range. As the sun set behind the mountains, through the smoke the sun appeared blood red. And after it set behind the peaks, it got really dark.