Air Quality Alert continues
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CHICAGO - A clash of air masses on Wednesday will result in the threat of severe storms from Milwaukee and Chicago westward to Denver and the eastern Rockies. The Storm Prediction Center has placed large parts of Illinois, Wisconsin, and Colorado under a "slight" risk of severe storms - a Level 2 out of 5 on its severe storm scale.
Multiple U.S. states and Canadian provinces are experiencing poor air quality from wildfire smoke. Here's where.