Colorado Division Public Health and Environment Air Quality Division

Air Quality Health Advisory for Wildfire Smoke

Avisos en Español para todo el Estado (Colorado)

Issued for Rio Blanco, Garfield, Mesa, Delta, Gunnison, Montrose, Grand, Eagle, Summit, and southern parts of Routt and Jackson Counties
Issued at 8:07 AM MDT, Wednesday, August 13, 2025

Issued by the Colorado Department of Public Health and Environment

Affected Area: Rio Blanco, Garfield, Mesa, Delta, Gunnison, Montrose, Grand, Eagle, Summit, and southern parts of Routt and Jackson Counties. Locations include, but are not limited to Meeker, Glenwood Springs, Grand Junction, Delta, Gunnison, Montrose, Nucla, Granby, Hot Sulphur Springs, Kremmling, Eagle, Vail and Breckenridge.

Advisory in Effect: 9:00 AM MDT, Wednesday, August 13, 2025 to 9:00 AM MDT, Thursday, August 14, 2025

Public Health Recommendations: If smoke is thick or becomes thick in yourneighborhood 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.

Outlook: Widespread moderate to heavy smoke has been observed across the advisory area Wednesday morning. Additional heavy smoke is possible Wednesday afternoon and evening for areas downwind of the wildfires in Rio Blanco County, possibly impacting areas along and north of Interstate 70 within the advisory area.