748 AEUS75 KBOU 291910 AQABOU Air Quality Alert Message Colorado Department of Public Health and Environment Relayed by National Weather Service Boulder CO 110 PM MDT Mon Jun 29 2026 COC059-013-031-123-005-014-001-035-069-292200- Jefferson-Boulder-Denver-Weld-Arapahoe-Broomfield-Adams- Douglas-Larimer- 110 PM MDT Mon Jun 29 2026 ...ACTION DAY FOR MULTIPLE POLLUTANTS FROM 400 PM SUNDAY UNTIL 400 PM MONDAY... The Colorado Department of Public Health and Environment has issued the following... WHAT...Action Day for Multiple Pollutants. WHERE...Douglas, Jefferson, Denver, western Arapahoe, western Adams, Broomfield, Boulder, Larimer, and Weld Counties WHEN...400 PM Sunday June 28 to 400 PM Monday June 29 IMPACTS...Action Day for Multiple Pollutants is now in effect for the Front Range Urban Corridor. Increasing wildfire smoke is possible Sunday afternoon and evening, especially in and near Denver and the local foothills to the west of the metro area. Another plume of wildfire smoke could impact the entire northern Front Range region Monday afternoon and evening. Both ozone and fine particulates could reach the Unhealthy for Sensitive Groups category or higher. For Colorado air quality conditions, forecasts, and advisories, visit: https://www.colorado.gov/airquality/colorado_summary.aspx If possible, please help us reduce ozone pollution by limiting driving gas and diesel-powered vehicles until at least 4 p.m. Monday, June 29, 2026. Colorado is also addressing ozone pollution through state policies. For more information about health impacts and how ozone pollution forms in Colorado, visit: https://cdphe.colorado.gov/ozone- pollution-and-your-health HEALTH INFORMATION...People with heart or lung disease, older adults, and children should reduce prolonged or heavy exertion. During periods of heavier wildfire smoke, everyone should reduce prolonged or heavy exertion. $$ COC073-301500- Lincoln- 110 PM MDT Mon Jun 29 2026 ...AIR QUALITY HEALTH ADVISORY FOR WILDFIRE SMOKE FROM 100 PM MONDAY UNTIL 900 AM TUESDAY... The Colorado Department of Public Health and Environment has issued the following... WHAT...Air Quality Health Advisory for Wildfire Smoke. WHERE...Pueblo, eastern Custer, Crowley, eastern El Paso and Lincoln Counties. Locations include, but are not limited to Pueblo, Beulah, Ordway and Limon. WHEN...100 PM Monday June 29 to 900 AM Tuesday June 30 IMPACTS...Areas downwind of the Aspen Acres Fire could have periods of moderate to heavy smoke through at least Tuesday morning. HEALTH INFORMATION...Public Health Recommendations: If smoke is thick or becomes thick in your neighborhood you may want to remain indoors. This is especially true for those with heart disease, respiratory illnesses, the very young, and older adults. Consider limiting outdoor activity when moderate to heavy smoke is present. Consider relocating temporarily if smoke is present indoors and is making you ill. If visibility is less than 5 miles in smoke in your neighborhood, smoke has reached levels that are unhealthy. $$ COC093-117-049-047-019-301500- Park-Summit-Grand-Gilpin-Clear Creek- 110 PM MDT Mon Jun 29 2026 ...AIR QUALITY HEALTH ADVISORY FOR WILDFIRE SMOKE FROM 900 AM MONDAY UNTIL 900 AM TUESDAY... The Colorado Department of Public Health and Environment has issued the following... WHAT...Air Quality Health Advisory for Wildfire Smoke. WHERE...Grand, Gilpin, Clear Creek, Summit, Eagle, Garfield, Mesa, Delta, Pitkin, Lake, Park, Chaffee, Gunnison, Montrose, Ouray, San Miguel, Dolores and northern Montezuma Counties. Locations include, but are not limited to Granby, Hot Sulphur Springs, Kremmling, Central City, Georgetown, Breckenridge, Eagle, Vail, Glenwood Springs, Grand Junction, Delta, Aspen, Leadville, Fairplay, Buena Vista, Salida, Gunnison, Montrose, Nucla, Ouray, Telluride, and Dove Creek. WHEN...900 AM Monday June 29 to 900 AM Tuesday June 30 IMPACTS...Areas near and downwind of large fires in southwestern Colorado and southeastern Utah could have periods of moderate to heavy smoke through at least Tuesday morning. HEALTH INFORMATION...Public Health Recommendations: If smoke is thick or becomes thick in your neighborhood you may want to remain indoors. This is especially true for those with heart disease, respiratory illnesses, the very young, and older adults. Consider limiting outdoor activity when moderate to heavy smoke is present. Consider relocating temporarily if smoke is present indoors and is making you ill. If visibility is less than 5 miles in smoke in your neighborhood, smoke has reached levels that are unhealthy. $$