Update: Ozone pollution alert in place for Central Colorado until early Saturday

Published Jun 12, 2026

An updated air quality alert was reported by the National Weather Service on Friday at 4:10 p.m. in effect until Saturday at midnight for Central Colorado.

The NWS informs, “Ozone Action Day Alert.”

The full list of affected locations includes:

• Weld County

• Larimer County

• Douglas County

• Boulder County

• Denver County

• Adams County

• Arapahoe County

• Broomfield County

• Jefferson County

Air quality alerts: Recommendations from the NWS

When an air quality alert is in effect, following the NWS guidance is pivotal. Here are some simple tips from the NWS for safeguarding your well-being:

Prioritize indoor stay:

If it’s within your means, stay indoors, especially if you have respiratory issues, health concerns, or fall within the senior or child demographics.

Trim outdoor activities to essentials:

When venturing outside is unavoidable, restrict your time outdoors solely to essential activities. Reducing exposure is paramount.

Mitigate pollution sources:

Be conscious of activities that contribute to pollution, such as driving cars, using gas-powered lawnmowers, or relying on motorized vehicles. Curtail their use during air quality alerts.

Banish open burning:

Avoid burning debris or any other materials during air quality alerts. This contributes to worsened air quality.

Stay informed:

Keep yourself well-informed by tuning in to NOAA Weather Radio or your preferred weather news outlet. Staying in the loop empowers you to make informed decisions regarding outdoor engagements during air quality alerts.

Respiratory health caution:

If you grapple with respiratory issues or underlying health problems, exercise added caution. These conditions can render you more susceptible to the adverse effects of compromised air quality.

Following the recommendations from the NWS helps bolster your safety during air quality alerts, minimizing your exposure to potentially harmful pollutants. Stay vigilant, stay protected, and make your health the top priority.

Source: The National Weather Service