Looking at the NOAA HMS Fire and Smoke Product (left), there is a thin line of smoke emanating from the Rim fire in California and a large plume stretching from Canada to Mexico. The large plume is likely a mix of smoke as a result of the Rim fire and agricultural fires burning in the central United States. The GASP EAST animation (right) also shows increased AOD corresponding to these two smoke plumes. In addition, the Smoke and Fire Product shows a small plume in Northwest Canada due to wildfires in northern Canada.
As of 19:00 UTC, Markleeville, CA and Yankee Hill, CA tied for the highest AQI of 191 (EPA AIRNow image, bottom left). AQIs reached very unhealthy levels today as a result the Rim fire. Sinced it popped up over a week ago, it has accumulated a burnt area of 235,841 acres (courtesy of the National Interagency Fire Center). On the bright side, the Rim fire is currently 80% contained and will hopefully become fully contained soon. Air quality in the resulting region is affected, although the Yosemite National Park webcam does not seem to show much smoke. However, as of 18:15 UTC, the Point Reyes National Seashore webcam illustrates the decreased visibility as a result of the Rime fire (bottom right). In addition, moderate AQIs were seen in the Southeast.