Smoke in the North, Sulfate in the East
Regions of Moderate AQI
across the Plains, Southeast, and
Pacific Southwest, as well as additional smaller spots in
the Mid-Atlantic, Northeast, and Pacific Northwest are
visible in the EPA AQI
loop below left. Also visible are
areas Unhealthy for Sensitive Groups in North Dakota and
The NRL NAAPS forecast predicts sulfate over the Northeast,
Mid-Atlantic, and Southeast, which may account for the
higher AQIs in those portions of the country.
The smoke that's been drifting south from Canada over the
past several days is still over the Great Lakes and
northern Plains, as seen in the HMS imagery below left.
The smoke also shows up as elevated AOD
in the MODIS
Terra image below right, although clouds cover much
of the area of interest. This could be the cause of
the lower air quality in and around the upper Plains.
Smoke from another source is visible in the MODIS
Terra image from Google Earth, below, showing what
looks like smoke pouring out of the forests near the
Mills Canyon and Rock Hill fires in central Washington
Posted by Daniel Orozco at July 10, 2014 10:33 PM