Still Air Hazards
Between the Idaho and Washington border still, at least 72 hours before the air moves. Sept. 15, 2020, the particulates have dropped just below 200, at least in these towns. The fires still burn.
The sun drops toward the horizon and its light is colored by a longer length in the smoke. Last night the air was so thick with smoke, you could not see the sun go down. The red end of the spectrum is evident, by Friday some blue?