Upper-level winds will push Canadian wildfire smoke into the northern U.S. Friday and Saturday. Air quality alerts are in effect Friday for the entire state of Wisconsin, parts of Minnesota and the Upper Peninsula of Michigan, so please limit time outdoors if you have respiratory issues. Expect smoke to thicken and become more widespread across North and South Dakota Saturday. Along with reductions in air quality, stay alert for poor visibility and keep an eye out for colorful sunrises and sunsets.