Air quality was in the good range early in the day but low wind, high PM in the evening. Particulates were low up till 4 pm as you can see from the Sunland Park City Yard station. PM10 peaked at 6 pm with a concentration of 300 µg/m3 and PM2.5 of 76 µg/m3.
We also see a similar pattern at the NMED Anthony station.
Column aerosol was low except for a little above normal along the Rio Grande in the Rincon Valley in Sierra County.
It was a great day for contrails.
Looking at the Deming profiler we can see the entrance of the upper low with the change in wind directions in the afternoon.