May 20: Why are skies smoky in Colorado on Saturday?

DENVER (KDVR) — Denver and the Front Range continued to suffer from poor air quality and smoky skies from Canadian wildfires Saturday.

Denver had the No. 4 worst air quality in the world among major cities as of 9 a.m. Saturday.

The Colorado Department of Public Health & Environment issued an “action day for particulates” for parts of the Front Range including Denver, Boulder and Fort Collins until at least 4 p.m. This means that either current air quality is unhealthy, or conditions are expected to worsen later in the day into the next.

The NWS also issued an action day and requested that people avoid driving gas or diesel vehicles, as additional pollution can worsen the air quality…