Canadian wildfires are impacting air quality in the Midwest and Northern Plains.
Smoke may cause reduced visibility and respiratory problems.
Several states, including Indiana, Illinois, and Michigan, are potentially affected.
The Canadian wildfire smoke is slowly working into the U.S. and could affect several states in the Midwest and the Northern Plains, according to AccuWeather meteorologists.
Hot air and any lingering smoke can lead to ozone issues over a broad area of the north-central region, as heat builds in from the western U.S. this week.
AccuWeather meteorologist Brandon Buckingham noted that "there will be episodes where the smoke can reach the lower levels of the atmosphere and affect visibility and air quality. That could be a safety concern for travel in extreme