U.S. Air Quality

Moderate AQI over the Nation; Smoke in West and Mississippi Valley

Poor air quality was detected today over the nation. Moderate levels were read pretty much over all the EPA station (top left). Although some regions reached the moderate levels for short time, the mid-Atlantic region, the plain states and the northwest regions detected these levels throughout the entire day. In particular, unhealthy levels for sensitive groups were measured in Washington, Idaho and Oregon due to the fires in Washington. According to HMS, an area of thin to density remnant smoke was visible moving southwest from western Washington/southern British Columbia into the Pacific Ocean. Remnant smoke is believed to originate from fires burning in Idaho and Washington (top right).
Modis true color image continue to show the fires and the smoke plumes in Washington and Idaho (bottom left). Finally, thin-density remnant smoke was present across Quebec and Ontario extending mostly southward through the Great Lakes Region and Mississippi Valley into the Gulf of Mexico, likely due to numerous agricultural burns and possibly the Minnie wildfire in Minnesota (bottom right).