CDPHE Air Pollution Control Division

Elevated levels of ozone are possible on Monday and Tuesday in the northern Colorado Front Range. An Ozone Action Day alert is in effect until at least 4 pm on Tuesday. https://www.colorado.gov/airquality/advisory.aspx

Ozone levels remain high on Saturday afternoon, so the Ozone Action Day Alert has been extended until midnight Saturday night. Breezy winds are expected to keep ozone Good to Moderate on Sunday. https://www.colorado.gov/airquality/advisory.aspx