Text Size
Increase text size
Increase text size
Banner
Use the links above to access CDPHE resources...

Front Range Air Quality Forecast & Colorado Smoke Outlook

FRONT RANGE AIR QUALITY FORECAST:
Thursday, May 23, 2024, 2:00 PM MDT

Ozone concentrations are expected to be in the Good to Moderate range on Thursday and Friday. Unusually sensitive people should consider reducing prolonged or heavy outdoor exertion from noon to 8 pm on Thursday and Friday.

Fine Particulate Matter concentrations are expected to be in the Good category on Thursday and Friday.

Carbon Monoxide concentrations are expected to be in the Good category on Thursday and Friday.

Nitrogen Dioxide concentrations are expected to be in the Good category on Thursday and Friday.

Visibility is expected to be Good on Friday.

COLORADO SMOKE OUTLOOK:
Thursday, May 23, 2024, 2:00 PM MDT

Air Quality Health Advisory for Wildfire Smoke

Issued for San Juan, Ouray, Hinsdale, Mineral, eastern San Miguel, eastern Dolores, northern La Plata, and north-central Montezuma Counties

Issued at 9:00 AM MDT, Thursday, May 23, 2024

Issued by the Colorado Department of Public Health and Environment

Affected Area: San Juan, Ouray, Hinsdale, Mineral, eastern San Miguel, eastern Dolores, northern La Plata, and north-central Montezuma Counties. Locations include, but are not limited to Ouray, Telluride, Silverton, Lake City, Creede, Rico, and Dolores.

Advisory in Effect: 9:00 AM MDT, Thursday, May 23, 2024 to 9:00 AM MDT, Friday, May 24, 2024.

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: The Spruce Creek Wildfire is burning in the San Juan National Forest, approximately 11 miles northeast of Dolores, Colorado. Areas of heavy smoke are present in many areas on Thursday morning, especially along State Highway 145 south of Rico to Dolores. This smoke is expected to lift throughout the day on Thursday as daytime mixing of the atmosphere deepens and winds increase. Winds out of the west or southwest will transport smoke to areas to the east or northeast of the fire on Thursday afternoon, possibly creating impacts in those areas, including Telluride, Ouray, Silverton, Lake City, and Creede. The greatest impacts from smoke are expected overnight Thursday night and early Friday morning as smoke settles throughout the advisory area, especially in lower terrain and sheltered mountain valleys.


Light to moderate concentrations of smoke are also possible near small wildfires and prescribed burns around the state.

What if there is a wildfire or smoke in your area?
The focus of the Colorado Smoke Outlook is on large fires (e.g., greater than 100 acres in size). Nevertheless, smoke from smaller fires, prescribed fires, and/or smoke from new fires not yet known to CDPHE air quality meteorologists may cause locally heavy smoke. If there is smoke in your neighborhood, see the public health recommendations below.

Public health recommendations for areas affected by smoke:
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 the elderly. Consider limiting outdoor activity when moderate to heavy smoke is present. Consider relocating temporarily if smoke is present indoors and is making you ill. To temporarily relocate to an area with better air quality, consider using this map (https://fire.airnow.gov/) to identify the best area closest to you. IF VISIBILITY IS LESS THAN 5 MILES IN SMOKE IN YOUR NEIGHBORHOOD, SMOKE HAS REACHED LEVELS THAT ARE UNHEALTHY.

Colorado Department of Public Health & Environment/APCD/Technical Services Program
visit us at: http://www.colorado.gov/airquality - all data are preliminary