The first image below, courtesy NOAA HMS, shows the fire locations across the United States. The red dots correspond to active fires, and the grey areas are plumes. The largest plumes are continuously stretching from the Northwest to the Northeast regions of the country. The highest concentration of fires continues to be in the Pacific Northwest, specifically in Idaho, Washington and Montana. Many posts about the current air quality in these states have already occurred. There is also some fire activity with little smoke in the Mississippi Valley. The image below, courtesy GASP EAST, shows the AOD image at 21:45 UTC for the country today. You can see that most of these raised values correspond to more optically thick areas, which correspond to the fires and smoke debris throughout the nation.
The image below shows the CALIPSO lidar 532 Total Attenuated Backscatter image with an overpass over the Northwest region, emphasizing the PM 2.5 amounts and altitudes. There are large amounts of aerosols in the first few kilometers that are due to the wildfires in those coordinates. The large thick layer from the surface to 3 km centered around (50.00,-110.00) is right in the center of a Idahoa plume. The various debris around (25,-118) is through the southwest U.S. The second true-color image was taken by the Enhanced Thematic Mapper Plus (ETM+) aboard the Landsat 7 satellite on September 12, 2001, at roughly 11:30 a.m. Eastern Daylight Savings Time following the WTC bombings.
We remember those who lost their lives 11 years ago in the attacks and try to thank those who gave their lives trying to save them.