{"url_path":"/weather/alerts/2.49.0.1.840.0.876a1915b319278bd0dd4ae80e988cf0f9d90811.001.1","section_key":"alert","section_title":"Air Quality Alert issued July 20 at 4:10PM MDT by NWS Denver CO","topic":"weather","document":{"doc_type":"alert","doc_date":"2026-07-20","source_url":"https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.876a1915b319278bd0dd4ae80e988cf0f9d90811.001.1","accession_number":null,"cik":null,"ticker":null,"issuer_name":null,"edgar_url":null,"primary_entity_key":null,"primary_entity_name":"NWS Denver CO"},"word_count":227,"has_tables":false,"body_markdown":"# Air Quality Alert: Air Quality Alert issued July 20 at 4:10PM MDT by NWS Denver CO\n\n**Severity:** Unknown\n**Certainty:** Unknown\n**Urgency:** Unknown\n**Areas:** Douglas, CO; Broomfield, CO; Adams, CO; Larimer, CO; Boulder, CO; Arapahoe, CO; Jefferson, CO; Denver, CO; Weld, CO\n**Issued by:** NWS Denver CO\n**Sent:** 2026-07-20T16:11:00-06:00\n**Effective:** 2026-07-20T16:10:00-06:00\n**Expires:** 2026-07-21T16:00:00-06:00\n\n## Description\nThe Colorado Department of Public Health and Environment has\nissued the following...\n\nWHAT...Ozone Action Day Alert.\n\nWHERE...Douglas, Jefferson, Denver, western Arapahoe, western\nAdams, Broomfield, Boulder, Larimer, and Weld Counties\n\nWHEN...400 PM Monday July 20 to 400 PM Tuesday July 21\n\nIMPACTS...Ozone Action Day Alert is now in effect for the Front\nRange Urban Corridor.  Hot and stagnant weather conditions will\nresult in ozone concentrations reaching the Unhealthy for\nSensitive Groups category both Monday and Tuesday during the\nafternoon and evening hours.  For Colorado air quality conditions,\nforecasts, and advisories, visit:\nhttps://www.colorado.gov/airquality/colorado_summary.aspx   If\npossible, please help us reduce ozone pollution by limiting\ndriving gas and diesel-powered vehicles until at least 4 p.m.\nTuesday, July 21, 2026. Colorado is also addressing ozone\npollution through state policies. For more information about\nhealth impacts and how ozone pollution forms in Colorado, visit:\nhttps://cdphe.colorado.gov/ozone- pollution-and-your-health\n\nHEALTH INFORMATION...Increasing likelihood of respiratory symptoms\nand breathing discomfort in active children and adults and people\nwith lung disease, such as asthma. Active children and adults, and\npeople with lung disease, such as asthma, should reduce prolonged\nor heavy outdoor exertion."}