MILWAUKEE -- Did you notice a yellowish hue to the sky? What was going on with the sun and the sky? According to the National Weather Service, it's from massive forest fires in central and northern Canada.
Northwest winds carried and spread the plumes of smokes across the upper Midwest. The smoke is far up in the atmosphere and you may not even be able to smell it, but it is causing the yellowish hue to the sky, according to the National Weather Service.