(FOX WEATHER) – Thick wildfire smoke continued to smother the skies over 100 million Americans Friday morning, but there was some relief in sight just as the big 4th of July weekend gets under way.
Washington, DC, Pittsburgh, Philadelphia, Cleveland, Detroit, Milwaukee and Atlanta all had Air Quality Index (AQI) readings over 150 early Friday morning, with readings around or just under 150 in the New York City area.
Meanwhile, air quality was significantly improved Thursday night and Friday across much of Illinois south of Chicago, Indiana, western Ohio and Kentucky after Thursday’s ferocious winds associated with a derecho cleaned out the atmosphere.
