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. There are very light plumes in the Southeast region. These fires have been burning steadily for the past few days, with light plumage. The nearby Mississippi Valley region also has widespread light fire activity. The image below, courtesy GASP MODIS (Terra satellite), shows the AOD image 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 raised values in the Pacific Southwest, specifically in southern Nevada, may be due to dust. The fires in the Southeast are not increasing the AOD as much, which means they are not emitting immense amounts of smoke.
The first image below shows the animation for EPA AIRNOW AQI values for the country. Most of these raised values in the northeast are due to sulfates. The raised values in the southeast are due to the fires.The next image, which shows the NOAA dust forecast shows that this dust will be moving eastward throughout the week. This is the image of the 7PM EDT model and the values are 1 hour Surface dust (ug/m3).