Air quality alert extended for Chicago area due to Canadian wildfire smoke

CHICAGO (WLS) -- An air quality alert was extended through Wednesday by the National Weather Service for the Chicago area.

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Chopper 7 captured as smoke from Canadian wildfires created smoky skies on Tuesday morning.

The alert is in effect until Wednesday at 10:37 p.m. in the Chicago area.

Northwest Indiana will likely continue see smoky skies, ABC7's Tracy Butler said.

Children and adults with pulmonary or respiratory disease such as asthma, are asked to limit their time outside as a precaution.