U.S. Air Quality

Moderate to unhealthy ozone levels in California and Arizona, Moderate PM2.5 levels in California, Texas and Northeast

Today clouds were covering most of the US as we can see in Aqua MODIS image (top,left) making it almost impossible to visualize any event on the ground. PM2.5 levels were mostly good (top, right) with exception of California, Texas and the Northeast (from Pennsylvania to Maine) which presented moderate levels through most of the day.
Ozone levels were moderate to unhealthy (code orange) in California and Arizona (bottom, left) throughout the day. In the boundary East Montana/West North Dakota and also in Wyoming ozone reached moderate levels in the late afternoon.
NOAA HMS team reported smoke plumes coming from Central America and spreading out to Gulf of Mexico and North Pacific (bottom, right).