CDPHE: Air quality health advisory for wildfire smoke

Colorado Department of Public Health and Environment

Avisos en Español para todo el Estado (Colorado)

Issued for western Eagle and eastern Garfield Counties
Issued at 6:42 AM MDT, Sunday, August 24, 2025

Issued by the Colorado Department of Public Health and Environment

Affected Area: Western Eagle and eastern Garfield Counties. Locations include, but are not limited to Sweetwater Lake and Dotsero.

Advisory in Effect: 9:00 AM MDT, Sunday, August 24, 2025 to 9:00 AM MDT, Monday, August 25, 2025

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.

Outlook: Smoke from the Derby Fire is impacting parts of central Colorado. The heaviest smoke is expected in areas near the fire and in low-lying areas during the overnight and early morning hours, including Sweetwater Lake and Colorado River Road between Dotsero and Burns.

For the latest Colorado statewide air quality conditions, forecasts, and advisories, visit: https://www.colorado.gov/airquality/colorado_summary.aspx

For the latest Smoke Blog, visit: https://colosmokeoutlook.blogspot.com/

For more information about smoke and your health, visit: https://cdphe.colorado.gov/outdoor-burning/wildfire-smoke-and-health

CDPHE: Air quality health advisory for wildfire smoke

CDPHE: Air quality health advisory for wildfire smoke

Colorado Department of Public Health and Environment

Avisos en Español para todo el Estado (Colorado)

Issued for southeastern Dolores and northeastern Montezuma Counties
Issued at 6:46 AM MDT, Saturday, August 23, 2025

Issued by the Colorado Department of Public Health and Environment

Affected Area: Southeastern Dolores and northeastern Montezuma Counties. Locations include, but are not limited to Stoner.

Advisory in Effect: 9:00 AM MDT, Saturday, August 23, 2025 to 9:00 AM MDT, Sunday, August 24, 2025

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.

Outlook: Locations near the Stoner Mesa Fire, including Highway 145 and the Stoner area, are experiencing heavy smoke. Smoke is expected to continue through Sunday morning, especially during the overnight and early morning hours.

Colorado statewide air quality conditions, forecasts, and advisories

Smoke blog

More information about smoke and your health

CDPHE: Air quality health advisory for wildfire smoke

CDPHE: Air quality health advisory for wildfire smoke

Colorado Air Pollution Control Division – CDPHE

August 22, 2025 – Issued for western Eagle and eastern Garfield counties by the Colorado Department of Public Health and Environment.

Affected area: Western Eagle and eastern Garfield Counties. Locations include, but are not limited to Sweetwater Lake and Dotsero.

Advisory in effect: 9 a.m. MDT, Friday, August 22, 2025 to 9 a.m. MDT, Saturday, August 23, 2025.

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.

Outlook: Smoke from the Derby Fire is impacting parts of central Colorado. The heaviest smoke is expected in areas near the fire and in low-lying areas during the overnight and early morning hours, including the Sweetwater Lake and Colorado River Road between Dotsero and Burns.

CDPHE: Air quality health advisory for wildfire smoke

CDPHE: Air quality health advisory for wildfire smoke

Colorado Department of Public Health and Environment

Issued for Routt, Rio Blanco, Eagle, Garfield, Gilpin, Jackson, Grand and Clear Creek Counties
Issued at 7:34 AM MDT, Wednesday, August 6, 2025

Issued by the Colorado Department of Public Health and Environment

Affected Area: Routt, Rio Blanco, Eagle, Garfield, Gilpin, Jackson, Grand and Clear Creek Counties. Locations include, but are not limited to Steamboat Springs, Meeker, Rangely, Eagle, Vail, Glenwood Springs, Central City, Walden, Granby, Hot Sulphur Springs, Kremmling and Georgetown.
 
Advisory in Effect: 9:00 AM MDT, Wednesday, August 6, 2025 to 9:00 AM MDT, Thursday, August 7, 2025
 
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.
 
Outlook: Smoke from large wildfires in Rio Blanco County is impacting a large area of Colorado. Periods of moderate to heavy smoke are possible throughout the advisory area on Wednesday.

Colorado statewide air quality conditions, forecasts, and advisories

CDPHE: Air quality health advisory for wildfire smoke

CDPHE: Air quality health advisory for wildfire smoke

Colorado Department of Public Health and Environment

Avisos en Español para todo el Estado (Colorado)

Issued for Routt, Grand, eastern Rio Blanco, Eagle, eastern Garfield, and Jackson counties
Issued at 7:59 AM MDT, Tuesday, August 5, 2025

Issued by the Colorado Department of Public Health and Environment

Affected Area: Routt, Grand, Rio Blanco, Eagle, Garfield and Jackson Counties. Locations include, but are not limited to Steamboat Springs, Granby, Hot Sulphur Springs, Kremmling, Meeker, Rangely, Eagle, Vail, Glenwood Springs and Walden.

Advisory in Effect: 9:00 AM MDT, Tuesday, August 5, 2025 to 9:00 AM MDT, Wednesday, August 6, 2025

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.

Outlook: Smoke from several fires in Rio Blanco and Garfield counties will produce areas of moderate to heavy smoke on Tuesday and Wednesday. The greatest impacts are expected in areas in the immediate vicinity of these fires, particularly in sheltered areas and low lying terrain. Additional smoke impacts may be experienced across the advisory area due to transport of smoke on Tuesday and Wednesday.

Colorado statewide air quality conditions, forecasts, and advisories

CDPHE: Air quality health advisory for wildfire smoke

CDPHE: Air quality health advisory for wildfire smoke in eastern Garfield County

Colorado Department of Public Health and Environment

August 4, 2025, 8:15 a.m. – Issued for eastern Rio Blanco, eastern Garfield, Eagle, and Routt counties by the Colorado Department of Public Health and Environment.

Affected area: eastern Rio Blanco, eastern Garfield, Eagle, and Routt counties. Locations include, but are not limited to Meeker, Glenwood Springs, Carbondale, El Jebel, Basalt, Eagle, Vail, and Steamboat Springs.

Advisory in effect: 9 a.m. MDT, Monday, August 4, 2025 to 9 a.m. MDT, Tuesday, August 5, 2025.

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.

Outlook: Smoke from several fires in Rio Blanco and Garfield counties will produce areas of moderate to heavy smoke on Monday and Tuesday. The greatest impacts are expected in areas in the immediate vicinity of these fires, particularly in sheltered areas and low lying terrain. Additional smoke impacts may be experienced across the advisory area due to transport of smoke on Monday and Tuesday.

CDPHE: Air quality health advisory for wildfire smoke in eastern Garfield County

Air quality health advisory for wildfire smoke

Colorado Air Pollution Control Division – Colorado Department of Public Health & Environment

July 16, 2025, 8 a.m. – An air quality health advisory for wildfire smoke issued for Mesa, Garfield, Eagle, Pitkin, Lake, Delta, Gunnison, Chaffee, Montrose, San Miguel and Ouray counties.

Affected area: Mesa, Garfield, Eagle, Pitkin, Lake, Delta, Gunnison, Chaffee, Montrose, San Miguel and Ouray Counties. Locations include, but are not limited to Grand Junction, Glenwood Springs, Eagle, Vail, Aspen, Leadville, Delta, Gunnison, Buena Vista, Salida, Montrose, Nucla, Telluride, and Ouray.

Advisory in effect: 8 a.m. MDT, Wednesday, July 16, 2025 to 9 a.m. MDT, Thursday, July 17, 2025

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.

Outlook: Multiple wildfires will produce periods of moderate to heavy smoke across the advisory area through early Thursday morning. The heaviest smoke impacts will likely be in close proximity to the South Rim fire in eastern Montrose County, the Sowbelly Fire and Turner Gulch fires in southern Mesa County, and areas directly downwind of the Deer Creek fire in Montrose and San Miguel Counties. Thunderstorms are possible near the fires on Wednesday, and may produce gusty, erratic winds that can send smoke in any direction.

Air quality health advisory for wildfire smoke