If you have been experiencing itchy eyes or more sneezing on this Thursday it is likely caused by the thick haze over Denver and the entire state.

Winds from the northwest are blowing cool dry air—but also wildfire smoke—into the Midwest from Canada Smoke from wildfires blazing across Canada is once again wafting over huge portions of the Midwest and worsening air quality,

The smoke is expected to remain over the northern and central Plains of the United States for the next couple of days, according to meteorologists.