Canadian wildfire smoke across the North Central US
GOES-16 (GOES-East) True Color RGB images from the CSPP GeoSphere site (above) showed dense smoke from Canadian wildfires as it moved across much of the North Central US on 15 July 2023.GOES-16 Visible images with/without an overlay of the Aerosol Optical Depth (AOD) derived product is shown below — hourly Ceiling/Visibility observations indicted that the smoke reduced surface visibility to 1-3 miles at several sites. AOD values were quite high, reaching the 2.0-3.0 range in the most dense portions of the smoke pall.
A plot of lidar backscatter (source) at Madison, Wisconsin (below) showed that dense smoke extended to altitudes around 4.0-4.5 km (13,000-15,000 feet) during much of the day. A few notable Pilot Reports regarding the smoke are shown below: