The air quality was fine earlier this week (except for a spike), but went way south towards the end. Probably from people using their fire places. The most worrisome particular matter is those with a diameter of 2.5 microns.
We had some haze today. But since there were no clouds, the sky brightness didn't drop out. At the same time, the sky never got very bright for a cloudless day. We experienced a thin layer of cirrus clouds only.
Overcast day, but the visibility did reach 50 miles towards the east where the peaks of the Boise Mountains rose above the cloud tops. To the south, peaks 30 miles away were not visible as the peaks of the Owyhee Mountains didn't clear the clouds.
Most of the snow from the previous day had melted by this afternoon.
East - the tops of the Boise Mountains are visible
We had good air quality this week except for a bit of time on the 4th and 8th. Otherwise, the air quality was in the green all week. One reason was because of our wind. An inversion was unable to establish itself.
I used my thermal imager to collect occasional temperature readings of the Snake River. The location was on the edge of Homedale, ID, about a
1.5 miles from NearSys Station. Below is the chart I created from those readings.
I suspect that the speed of the river effected some of these readings. But it can still be seen when the river peaked in temperature.
Our air quality was good for the end of the year. What smoke and particulate matter we had was most likely from wood-burning stoves and fireplaces. The most dangerous particles, PM 2.5 hardly went above 50, the level where they become a concern.