Air Quality for NearSys Station, 24 - 30 January 2020

Particulate matter 2.5 micron was really bad this week. Other diameters were fine. I see that I can download data for other sized particles. So now need to update my spreadsheet.

Visibility for NearSys Station, 26 January 2020

Foggy. We had poor visibility this weekend. When I launched the UAVSonde, the visibility had only increased to 30 miles.

North

West

South

East (no Boise Mountains are visible)

Air Quality for NearSys Station, 17 - 23 January 2020

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.

Air Quality for NearSys Station, 10 -16 January 2020

At last, a week of good air. What spikes we experienced were brief and minor.

All-Sky Photometer for NearSys Station, 19 January 2020

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.

Visibility for NearSys Station, 19 January 2020

We're under a minor inversion that keeps a thin layer of haze close to the ground. Through the haze, visibility is around 15 miles. Above it, the visibility is in excess of 50 miles.

North

West

South

East

Visibility for NearSys Station, 14 January 2020

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. 

North

West

South

East - the tops of the Boise Mountains are visible