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 major concentration of fires is in the Southeast, Pacific Northwest, and Western Canada. There are also sparse fires in the Great Lakes Region. Although there is a large concentration of fires, there is little smoke being picked up by HMS. There is a small smoke plume on the Pacific ocean in western California. The second image below, courtesy MODIS Terra, shows the retrieved AOD 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. There is an AOD enhancement in the Great Lakes region.
The first image, courtesy NAAPS, is a model run which shows an increase in sulfates in the eastern portion of the country over the next few days. The next animation is from EPA AIRNOW for the Great Lakes Region. The highest forecasted values today were in Cleveland-Akron Ohio and Pittsburgh, PA. This region is currently sandwiched between two high pressure systems (to the north and south) these moderate conditions may persist until the systems move out later in the week.
The first image below is the MPLNET UMBC MPL time series for today. Notice they layer between 2-4 km during the day. The back trajectory (courtesy HYSPLit and Google Earth) in the next image shows that this may have come from some of the sparse fires in the Ohio River Valley.