Smoke from Northwest Wildfires Overspreading the Midwest

Smoke from large wildfires across the northwestern United States has been spreading eastward with the winds aloft, and covers a large portion of the Midwest.  This satellite image from 6 pm Monday shows the smoke as milky gray shades (clouds appear as brighter white areas).  This appears most prevalent over southern South Dakota, southward into western Oklahoma; a dense area of smoke aloft also appears over much of Indiana. A thinner smoke layer is indicated in between.  While the smoke is present, sunrises and sunsets will appear more vivid than usual.

Visible satellite imagery from August 19, showing widespread smoke aloft in the Midwest

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